MEGA 02 Fourth edition - March 2010 Document No. VP M-01-02

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2 MEGA 02 Fourth edition - March 2010 Document No. VP M The information contained in this manual is subject to change without notification. Changes will be posted in the electronic version of the Specification and Guarantee Manual AHMSA available at

3 POLITICA DE CALIDAD, SEGURIDAD, SALUD Y MEDIO AMBIENTE Es interés de esta dirección: Fomentar la competitividad e incrementar el valor de los recursos naturales y humanos de nuestras empresas, acorde a las normas y leyes de Medio Ambiente y Seguridad. Satisfacer las necesidades de Calidad y Servicio de nuestros clientes. Utilizar el Sistema de Administración AHMSA (SAA) y sus principios como herramienta para mejorar nuestras metas y permitir el fortalecimiento de nuestra empresa continuamente. Monclova, Coahuila, 8 de Junio de Revisión 00 LIC. ALONSO ANCIRA ELIZONDO DIRECTOR GENERAL ARQ. MANUEL ANCIRA ELIZONDO DIRECTOR GENERAL ADJUNTO DE OPERACIONES LIC. JORGE ANCIRA ELIZONDO DIRECTOR GENERAL ADJUNTO DE ADMINISTRACION Y FINANZAS ENVIRONMENT, QUALITY, HEALTH AND SAFETY POLICY It is the interest of AHMSA to: Promote competitiveness and increase the value of the natural and human resources of our company and its subsidiaries, according to the standards and laws of Environment and Safety. Exceed the Quality and Service expectations of our customers. Improve our goals and enable the continuous strengthening of our company, by applying the principles of the AHMSA Management System (AMS). 1

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5 TABLE OF CONTENTS Page General Policies 4 The AHMSA Customer Portal 6 Terms and Conditions of Use 8 HOT ROLLED FLAT PRODUCTS 10 Wide Plate Steel 11 Product Guarantee Table, Plate (HRO) 24 Hot Rolled Steel Coil 25 Product Guarantee Table, Hot Rolled Coil (HOR) 32 Hot Rolled and Pickled Steel Coil 33 Product Guarantee Table, Pickled Coil (HRP) 34 Skin Passed, Hot Rolled Flat Products (SKP) 35 Floor Plate (FP) 35 COLD ROLLED FLAT PRODUCTS 44 Cold Rolled Sheet and Coil 45 Product Guarantee Table, Temper Rolled Steel Sheet (CRO) 56 Product Guarantee Table, Full Hard Steel (CRU) 57 Tin Plate 58 Product Guarantee Table, Tin Plate Guarantee Table (TCO) 62 Tin-Free Steel 63 Product Guarantee Table, Tin-Free Steel (TFS) 66 STRUCTURAL SHAPES 68 W Shapes - Wide Flange Beams 69 C Shapes - Channels 71 L Shapes - Angles 72 Product Guarantee Table, Structural Shapes 77 Glossary 78 Gauge Table 82 Conversion Factors 83 3

6 GENERAL POLICIES Claims Policy Overview Oxidation Claims Weight Variation Claims Wet in Transit Claims If material appears to be defective, the customer shall attempt to process the material as usual. If the material appears to have numerous imperfections or defects after a minimum of 10% has been processed, the customer may then suspend production and notify AHMSA, and a technical service representative will arrange to inspect the material. The customer shall notify AHMSA of any technical or administrative claims via or customer service representative. Once a claim has been initiated, the Sales and Technical Service departments will be notified in order to seek resolution. AHMSA shall not be held responsible for certain claims arising from the oxidation of our products. Discoloration and staining is inherent from the presence of atmospheric humidity and the collection of condensation in transit. Because of the reactivity of steel, oxidation may be present between the layers in coils or between bundled sheets. AHMSA shall not be held responsible for the following oxidation claims: 1. When material is ordered without oil (dry) or without a suitable surface treatment. 2. When orders specify packaging with less than AHMSA s approved minimum level of protection. 3. When the steel is stored outdoors, or if left unprotected against moisture or sudden temperature changes. Note: If upon delivery the steel coil temperature is below the warehouse temperature, the customer shall not unpack the material until the coil temperature equalizes with the warehouse. A variation up to + /- 1% of the scale weight per invoiced shipment shall be allowed between the customer and AHMSA, before a claim may be initiated. Will be considered in the following cases: 1. Upon delivery, all items have immediately been inspected for the presence of moisture in the package. 2. If moisture in the packaging is present at the time of delivery, an annotation must be made in the delivery log while in the presence of the carrier. AHMSA sales must then be notified immediately. 3. Before the material is delivered to the customer or the customer s contracted carrier. For material that is picked up by the customer, the claim must be made to the customer s contracted carrier. AHMSA sales must then be notified immediately. 4

7 Full Hard Steel, Direct from the Mill Mechanical Properties and Chemical Analysis Permissible Variations Terms and Conditions of Use Order Requirements Hot Rolled Steel, Direct From the Mill Unless otherwise specified, full hard steel is directly shipped from the reduction mill. The variation in head and tail ends thicknesses shall not constitute grounds for a claim. Data referring to mechanical properties or chemical analysis are the result of tests performed on samples obtained from specific locations of the product(s), in accordance with the prescribed sampling procedures. Any warranty thereof is limited to the values obtained at such locations and by such procedures. Products sold by AHMSA shall be subject to the variations, tolerances, and classifications defined by international steel manufacturing standards as referenced in this manual. The number of significant digits applied to testing are in accordance with ASTM E-29. AHMSA is not responsible for the outcomes of any technical recommendation associated with the design, installation and use of AHMSA s products in this publication. Order placement requirements are necessary to maximize production efficiency. The order requirements are subject to change without notice. Consult with an AHMSA sales representative for current production specifications. AHMSA produces hot rolled steel according to international steel manufacturing standards. The hot-rolling process results in a product with defects such as mechanical scratches, marks, scale and surface oxidation. Hot rolled coils are supplied with the Head and Tail ends out off gauge. Neither the variation in head and tail ends thicknesses or coiler marks shall constitute grounds for a claim. 5

8 AHMSA CUSTOMER PORTAL - Using the last state of the art technology, the AHMSA Customer Portal provides up to date information on the status of commercial transactions with AHMSA. Customer Service The AHMSA Customer Portal provides in all the information our customers require, from when the order is placed to after the product is delivered, all in a timely and dependable manner. The information modules are: Purchase Orders Material in Production Shipping Details Credit Status Invoices Quality Test Certificates Claims Product inventories for Sale thru Internet AHMSA offers products in stock available for sale, through the Customer Portal. Using the Customer Portal results in the following benefits: Savings in telephone calls Savings in faxes services Access 24 hours per day, 7 days per week Transactions are carried out in a fast and simple manner. Once the products are selected, the shipping information and delivery address must be provided in order to complete the transaction. For more information please contact us: Outside of Mexico and the U.S.: AHMSA Export Department Phone +52 (866) Fax +52 (866) technicalservice@ahmsa.com In the U.S.: AHMSA International, Inc N. Loop 1604 W. San Antonio, Tx Phone (210) Fax (210) sales@ahmsainternational.com In Mexico: Altos Hornos de Mexico, S.A.B. de C.V. Free sales@ahmsa.com 6

9 The information contained in this manual is subject to change without notification. Changes will be posted in the electronic version of the Specification and Guarantee Manual AHMSA available at

10 TERMS AND CONDITIONS OF USE All information about the material contained in this publication is general in nature. The specifications should not be used or relied upon for any specific application without independent professional examination for verification of accuracy, suitability, and applicability of the materials described. Who so ever makes use of the material in this publication does so at his or her own risk and assumes any and all liability resulting from such use. Altos Hornos de Mexico, S.A.B. de C.V. and all of its subsidiaries reject responsibility for any and all expenditures incurred by lost commerce, labor expenses, or consequential damages arising from any implied warranties of fitness for any general or particular purpose. The information contained herein is subject to change without previous notification. Changes will be posted in the Specification and Guarantee Manual of AHMSA, available at under the Products section. 8

11 The information contained in this manual is subject to change without notification. Changes will be posted in the electronic version of the Specification and Guarantee Manual AHMSA available at

12 HOT ROLLED FLAT PRODUCTS AHMSA s hot rolled flat products comply with the strictest international quality standards. The processes for plate and coil production are certified under the ISO-9001 standard. To comply with the automotive industry s specifications, the Hot Mill department is ISO/TS16949 certified. In addition, AHMSA is certified and complies with the ISO certification to guarantee increased efficiency and reduced environmental impact throughout the manufacturing process. HOT ROLLED FLAT PRODUCTS AHMSA offers hot rolled plate and sheet, in grades and specifications which cover most steel applications in the construction and automotive industry, as well as the manufacture of heavy duty machinery, piping, structures, and pressure vessels, etc. AHMSA is proud to provide steel plate to the world, as the sole plate manufacturer in Mexico. Steel grades presented in this manual represent our main product lines. Some products, sizes, and grades require a minimum volume to manufacture and/or are subjected to restrictions. For any application not covered in this manual, please contact a technical consultant. Outside of Mexico and the U.S.: AHMSA Export Department Phone +52 (866) Fax +52 (866) technicalservice@ahmsa.com In the U.S.: AHMSA International, Inc N. Loop 1604 W. San Antonio, Tx Phone (210) Fax (210) sales@ahmsainternational.com 10

13 WIDE PLATE STEEL Plate is manufactured under hot rolling conditions and is supplied with or without mill edge. It is available in thicknesses from to 2.0 and widths from 56 to 120. AHMSA does not guarantee internal quality for steel plate thicker than 2. CLASSIFICATION The following steel types are classified by their resistance to deformation: I.- Low yield strength steel: All steel with a minimum yield strength of 30 ksi. II.- Medium yield strength steel: All steel with a minimum yield strength of 35 ksi. III.- High yield strength steel: All steel with a minimum yield strength of 45 ksi. WIDE PLATE STEEL Note: All chemical composition tables indicate the maximum chemical percentage, unless stated otherwise. All mechanical property tables indicate the minimum performance value, unless stated otherwise. AHMSA manufactures steel plate up to 6 metric tons each. Please consult with a technical service representative for larger applications. TABLE 1 SAE STEEL CLASSIFICATION AND TYPICAL APPLICATIONS Steel grade End use and typical applications SAE 1010 and 1012 Low-carbon steel, for manufactured shapes, welded pipes, tubes, etc. SAE 1015, 1018, 1020, Medium-carbon steels, for the manufacturing of structural shapes, 1022, 1025, 1030, machinery parts, and tools and 1040 SAE 1045, 1050, 1055 High-carbon steels, for machinery parts and agricultural tools. and 1060 SAE 1552 High-manganese steel, for tempered applications requiring increased resistance to wear in applications such as blades and hole pins. SAE 15B21 and Boron steels, for tempered applications requiring increased resistance AHM 130-B to wear, generally used in agricultural tools such as plough disks. 11

14 Chemical composition Chemical composition (maximum %) Specification C Mn P S Si SAE SAE SAE SAE SAE SAE SAE SAE SAE SAE SAE SAE SAE SAE SAE SAE 15B AHM 130-B Note: For SAE 15B21 and AHM 130-B, the Boron content is within % to %. Size range (Table 5) WIDE PLATE STEEL TABLE 2 Grade LC PAILS ASTM A-283-A, B, C ASTM A-36 ABS A, B, D, E LLOYD S A, B, D, E ASTM A-131-A, B, D, E DIN/BS EN S-235 DIN/BS EN S-275 DIN/BS EN S-355 ASTM A and 60 ASTM A ASTM A-656 Gr. 50 and 60 ASTM A-656 Gr. 70 and 80 ASTM A-709 Gr. 50 JIS G-3106 SM-490-A LOW, MEDIUM, AND HIGH STRENGTH STRUCTURAL STEEL End use and typical applications Used for the manufacture of large galvanized pails. Moderate strength structures with high weldability. Medium strength structural, welded beams and column bases. Medium strength structural steel for shipbuilding. Moderate strength structures with high weldability. Medium strength structural steel, welded beams and column bases. High strength welded beams, bridges and buildings. High strength low alloy (HSLA) welded girders, bridges, buildings, wind towers and conical posts. High strength low alloy (HSLA) bases for posts and light poles. High strength structures and welded beams. Extra-High strength for structures where low weight is required. High strength low alloy (HSLA) for bridges. High strength low alloy (HSLA) with high weldability for bridges, vessels, etc. 12

15 Chemical composition and mechanical properties Chemical composition (maximum %) Specification C Mn P S Si Cb V Yield strength min. ksi Tensile strength min. ksi LC PAILS ASTM A-283-A ASTM A-283-B ASTM A-283-C ASTM A ABS A ABS B ABS D ABS E LLOYD S A LLOYD S B LLOYD S D LLOYD S E ASTM A-131-A ASTM A-131-B ASTM A-131-D ASTM A-131-E DIN EN S DIN EN S DIN EN S ASTM A ASTM A ASTM A ASTM A-656 Gr ASTM A-656 Gr ASTM A-656 Gr ASTM A-656 Gr ASTM A-709 Gr JIS G-3106 SM-490-A Elong in 8 min. % Size range WIDE PLATE STEEL Represents minimum % values 13

16 TABLE 3 Grade ASTM/ASME SA-285-C ASTM/ASME SA-455 ASTM/ASME SA ASTM/ASME SA NMX B-475 ASTM/ASME SA-612 AAR TC-128-B PRESSURE VESSEL STEEL End use and typical applications Low to medium tensile strength steel for pressure vessels. High tensile strength steel for pressure vessels. High tensile strength steel for pressure vessels, for Moderate and Lower Temperature Service. Spherical pressure vessels. Railroad car tanks. WIDE PLATE STEEL Chemical composition and mechanical properties Chemical composition (maximum %) Specification C Mn P S Si Cb Yield strength min. ksi Tensile strength min. ksi ASTM/ASME SA-285-C ASTM/ASME SA-455 Thickness Thickness > Thickness > ASTM/ASME SA Thickness Thickness > ASTM/ASME SA NMX B Thickness > Thickness > ASTM/ASME SA-612 Thickness Thickness > AAR TC-128-B Elong in 8 min. % Size range 1 These steel grades have special requirements and will are subject to a production feasibility study. 14

17 TABLE 4 PIPELINE, CASING, AND SUPPORT STEEL Grade API 5L B, and X-42 API 5L X-46 to X-80 API X-52, 60 and 65-SG API 2H 50 End use and typical applications Medium tensile strength pipeline. High tensile strength pipeline. High tensile strength pipeline for sour service applications (sour gas). Support pipes and marine platforms structures. WIDE PLATE STEEL Chemical composition and mechanical properties Chemical composition (maximum %) Specification C Mn P S Si Nb V Ti Yield strength min. ksi Tensile strength min. ksi API 5L B (PSL 1) (PSL 2) API 5L X-42 (PSL 1) (PSL 2) API 5L X-46 (PSL 1) (PSL 2) API 5L X-52 (PSL 1) (PSL 2) API 5L X-56 (PSL 1) (PSL 2) API 5L X-60 (PSL 1) (PSL 2) API 5L X-65 (PSL 1) (PSL 2) API 5L X-70 (PSL 1) (PSL 2) API 5L X-80 (PSL 2) API X-52-SG API X-60-SG API X-65-SG API 2H 50 1, Elong in 2 min. % Size range 1 These steel grades have special requirements and are subject to a production feasibility study. 2 Plate meeting this grade will be produced as rolled. Mechanical testing is performed thru normalized test samples. 15

18 TABLE 5 SIZE RANGES Maximum plate length by thickness and width, given in inches. The plate is produced in lengths from 150 up to 500. The maximum weight for a single plate is 6 metric tons. Width Thickness Size range * Please contact our Technical Service Department WIDE PLATE STEEL > * Please contact our Technical Service Department Width Thickness Size range * Please contact our Technical Service Department > * Please contact our Technical Service Department 16

19 Width Size range 3 Thickness WIDE PLATE STEEL > * Please contact our Technical Service Department Note: Steel grades with a yield strength of 60 ksi or higher, and a thickness can be produced with a maximum width of 88. TABLE 6 ORDER MINIMUMS FOR SPECIFICATION In general, each item must be ordered in multiples of 60 metric tons. For example Thickness Width Length MT Note: For grades ASTM A-36, ASTM A-283, and SAE 1010 to SAE 1015, multiples of 30 MT will be considered. 17

20 TABLE 7 PLATE TOLERANCE (according to ASTM A-6) 7.1 Permitted variations in thickness for carbon and HSLA steel Plates; Refer to ASTM A-6 Table 1 Specified Widths given in inches, in thickness 56 to 72 to 84 to 96 to 108 to (inches) 72, excl 84, excl 96, excl 108, excl 120, excl 5/16 to 3/8, excl /8 to 7/16, excl /16 to 1/2, excl /2 to 5/8, excl /8 to 3/4, excl /4 to 1, excl to 2, excl to 3, excl WIDE PLATE STEEL 7.2 Permitted variations in thickness for carbon and HSLA steel Plates, 50 mm and Under in Thickness When Ordered to Thickness; Refer to ASTM A-6 Table A1.1 Specified Widths given in millimeters, mm thickness 1420 to 1800 to 2100 to 2400 to 2700 to (mm) 1800, excl 2100, excl 2400, excl 2700, excl 3000, excl Note: Permitted variations under specific thickness of 0.01 (Table 7.1) or 0.3 mm (Table 7.2). Thickness is measured at 3/8 or 10 mm from the longitudinal edge when ordered with a cut edge and 3/4 or 20 mm on a mill edge. For thickness measured at any location other than specified in Note 2, the permitted variations over specified thickness shall be 1.75 times the amount in Tables 7.1 and 7.2, which is then rounded to the nearest tenth decimal point. 18

21 7.3 Permitted variations in width and length for sheared plates 1 1 /2 in., and under in thickness; Refer to ASTM A-6 Table 3 Specified dimensions Over specified width and length A for thicknesses given in (inches) (inches) to 3/8, excl 3/8 to 5/8, excl 5/8 to 1, excl 1 to 2, excl Length Width Width Length Width Length Width Length Width Length 120 to 240, 56 to 60, excl 3/8 3/4 1/2 7/8 5/8 1 3/4 1 1/8 excl 60 to 84, excl 1/2 3/4 5/8 7/8 3/4 1 7/8 1 1/4 84 to 108, excl 9/16 7/8 11/16 15/16 13/16 1 1/ /8 108 and over 5/8 1 3/4 1 1/8 7/8 1 1/4 1 1/8 1 3/8 240 to 360, 56 to 60, excl 3/8 1 1/2 1 1/8 5/8 1 1/4 3/4 1 1/2 excl 60 to 84, excl 1/2 1 5/8 1 1/8 3/4 1 1/4 7/8 1 1/2 84 to 108, excl 9/ /16 1 1/8 7/8 1 3/ /2 108 and over 11/16 1 1/8 7/8 1 1/ /8 1 1/4 1 3/4 360 to 480, 56 to 60, excl 7/16 1 1/8 1/2 1 1/4 5/8 1 3/8 3/4 1 5/8 excl 60 to 84, excl 1/2 1 1/4 5/8 1 3/8 3/4 1 1/2 7/8 1 5/8 84 to 108, excl 9/16 1 1/4 3/4 1 3/8 7/8 1 1/ /8 108 and over 3/4 1 3/8 7/8 1 1/ /8 1 1/4 1 7/8 WIDE PLATE STEEL A Permitted variation under specified width and length is 1/ Permitted variations in width and length for sheared plate 40 mm and under in thickness; Refer to ASTM A-6 Table A1.3 Specified dimensions (millimeters) Length Width Width Length Width Length Width Length Width Length 3000 to 6000, 1420 to 1500, excl excl 1500 to 2100, excl to 2700, excl and over to 9000, 1420 to 1500, excl excl 1500 to 2100, excl to 2700, excl and over to 1420 to 1500, excl , 1500 to 2100, excl excl 2100 to 2700, excl and over A Permitted variation under specified width and length is 6.0 mm. Over specified width and length A for thicknesses given in (millimeters) to 10.5, excl 10.5 to 16, excl 16 to 25, excl 25 to 50, excl 19

22 7.5 Permitted camber for carbon and HSLA steel sheared plates in inches; Refer to ASTM A-6 Table 11 Specified thickness (inches) Specified width (inches) Permitted Camber to 2, incl All 1/8 x (No. of feet of length/5) over 2 All 1/4 x (No. of feet of length/5) WIDE PLATE STEEL 7.6 Permitted camber for carbon and HSLA steel sheared plates in millimeters; Refer to ASTM A-6 Table A1.11 Specified thickness (mm) Specified width (mm) Permitted Camber to 50.8, excl All x (No. of mm of length/1,524) over 50.8 All 6.35 x (No. of mm of length/1,524) 7.7 Permitted variations from a flat surface for standard flatness carbon steel plate; Refer to ASTM A-6 Table 13 Specified thickness (inches) Specified widths given in inches, in 56 to 60 to 72 to 84 to 96 to 108 to 60, excl 72, excl 84, excl 96, excl 108, excl 120, excl 1/4 to 3/8, excl 3/4 15/16 1 1/8 1 1/ /8 to 1/2, excl 5/8 5/8 3/4 7/ /8 1/2 to 3/4, excl 9/16 5/8 5/8 3/ /4 to 1, excl 9/16 5/8 5/8 5/8 3/4 7/8 1 to 2, excl 1/2 9/16 9/16 5/8 5/8 5/8 2 and over 7/16 1/2 1/2 1/2 1/2 9/ Permitted variations from a flat surface for standard flatness carbon steel plate; Refer to ASTM A-6 Table A1.13 Specified thickness (mm) Specified widths given in millimeters, mm 1420 to 1500 to 1800 to 2100 to 2400 to 2700 to 1500, excl 1800, excl 2100, excl 2400, excl 2700, excl 3000, excl 6 to 10, excl to 12, excl to 20, excl to 25, excl to 50, excl and over

23 7.9 Permitted variations from a flat surface for standard flatness HSLA steel plates; Refer to ASTM A-6 Table 14 Specified thickness (inches) Specified widths given in inches, in 56 to 60 to 72 to 84 to 96 to 108 to 60, excl 72, excl 84, excl 96, excl 108, excl 120, excl 1/4 to 3/8, excl 1 1/8 1 3/8 1 3/4 1 7/ /8 to 1/2, excl 15/16 15/16 1 1/8 1 5/16 1 1/2 1 5/8 1/2 to 3/4, excl 13/16 7/ /8 1 1/4 1 3/8 3/4 to 1, excl 7/8 7/8 15/ /8 1 5/16 1 to 2, excl 3/4 13/16 7/8 15/ and over 11/16 3/4 3/4 3/4 3/4 7/8 WIDE PLATE STEEL 7.10 Permitted variations from a flat surface for standard flatness HSLA steel plates; Refer to ASTM A-6 Table A1.14 Specified thickness (mm) Specified widths given in millimeters, mm 1420 to 1500 to 1800 to 2100 to 2400 to 2700 to 1500, excl 1800, excl 2100, excl 2400, excl 2700, excl 3000, excl 6 to 10, excl to 12, excl to 20, excl to 25, excl to 50, excl and over

24 7.11 Permitted variations in waviness for standard flatness plate in inches; Refer to ASTM A-6 Table 15 Permitted variation from a flat surface (from Table Permitted variation in waviness, inches, 13 or 14) when number of waves in 12 ft is: in ASTM A /16 5/16 1/4 3/16 1/8 1/8 1/16 1/16 3/8 3/8 5/16 3/16 3/16 1/8 1/16 1/16 7/16 7/16 5/16 1/4 3/16 1/8 1/8 1/16 1/2 1/2 3/8 5/16 3/16 3/16 1/8 1/16 9/16 9/16 7/16 5/16 1/4 3/16 1/8 1/8 5/8 5/8 1/2 3/8 1/4 3/16 1/8 1/8 11/16 11/16 1/2 3/8 5/16 3/16 3/16 1/8 3/4 3/4 9/16 7/16 5/16 1/4 3/16 1/8 13/16 13/16 5/8 7/16 5/16 1/4 3/16 1/8 7/8 7/8 11/16 1/2 3/8 1/4 3/16 1/8 15/16 15/16 11/16 1/2 3/8 5/16 1/4 3/ /4 9/16 7/16 5/16 1/4 3/16 1 1/8 1 1/8 7/8 5/8 1/2 3/8 1/4 3/16 1 1/4 1 1/4 15/16 11/16 1/2 3/8 5/16 1/4 1 3/8 1 3/8 1 1/16 3/4 9/16 7/16 5/16 1/4 1 1/2 1 1/2 1 1/8 7/8 5/8 1/2 3/8 1/4 1 5/8 1 5/8 1 1/4 15/16 11/16 1/2 3/8 5/16 1 3/4 1 3/4 1 5/16 1 3/4 9/16 7/16 5/16 1 7/8 1 7/8 1 7/16 1 1/16 13/16 9/16 7/16 5/ /2 1 1/8 7/8 5/8 1/2 3/8 2 1/8 2 1/8 1 5/8 1 3/16 7/8 11/16 1/2 3/8 2 1/4 2 1/4 1 11/16 1 1/4 15/16 11/16 9/16 3/8 2 3/8 2 3/8 1 13/16 1 5/16 1 3/4 9/16 7/16 2 1/2 2 1/2 1 7/8 1 7/16 1 1/16 13/16 9/16 7/16 2 5/8 2 5/ /2 1 1/8 13/16 5/8 7/16 2 3/4 2 3/4 2 1/16 1 9/16 1 1/8 7/8 5/8 1/2 2 7/8 2 7/8 2 3/16 1 5/8 1 3/16 15/16 11/16 1/ /4 1 11/16 1 1/4 15/16 11/16 9/16 3 1/8 3 1/8 2 3/8 1 3/4 1 5/16 1 3/4 9/16 WIDE PLATE STEEL Note: Waviness denotes the maximum deviation of the surface of the plate from a plane parallel to the surface of the point of measurement and contiguous to the surface of the plate at each of the two adjacent wave peaks, when the plate is resting on a flat horizontal surface, as measured in an increment of less than 12 ft. of length. The permitted variation in waviness is a function of the permitted variation from a flat surface as obtained from table 13 or 14, whichever is applicable. 22

25 7.12 Permitted variations in waviness for standard flatness plate in mm; Refer to ASTM A-6 Table A1.15 Permitted variation from a flat surface (from Table A1.13 or A1.14) mm ASTM A-6 Permitted variation in waviness, millimeters, when number of waves in 4,000 mm is: WIDE PLATE STEEL Note: Waviness denotes the maximum deviation of the surface of the plate from a plane parallel to the surface of the point of measurement and contiguous to the surface of the plate at each of the two adjacent wave peaks, when the plate is resting on a flat horizontal surface, as measured in an increment of less than 4,000 mm of length. The permitted variation in waviness is a function of the permitted variation from a flat surface as obtained from table A1.13 or A1.14, whichever is applicable. 23

26 PRODUCT GUARANTEE TABLE, PLATE (HRO) Depending on the chemical composition of the steel, Hot Rolled Plate (HRO) is available with mill edge or cut edge, in a to thickness, and a width of 56 to 120. AHMSA does not guarantee internal quality for steel plate thicker than 2. The surface finish of hot rolled plate is semi-smooth and may have oxidation. Hot rolled plate is used for structural applications or where the surface quality is not critical. The typical applications of AHMSA steel plate are listed in tables 1, 2, 3, and 4 of this section. Attribute Guarantee Remarks Oxidation Not Hot rolled steel plate is delivered as rolled and is not protected. It guaranteed may have oxidation or staining. The manufacturer is not responsible for the risk of corrosion on products that are not oiled or protected. Same conditions for marine environment. Pitting 21 days Material that is not packaged and exposed to the elements is susceptible to pitting. The manufacturer warrants any exposed material to be free from pitting for 21 days. Mechanical 6 months In accordance with the required specifications. properties Camber 6 months In accordance with ASTM A-6 table 11. Surface 6 months According to ASTM A-6, the hot-rolling process results in a product quality with scale and surface oxidation. AHMSA guarantees the surface of the hot rolled steel products to be 95% free from defects such as: mechanical marks, scratches, scale, laminations, flakes, or cracks, all without affecting the thickness tolerance. For special requirements, a production feasibility study shall be required. Flatness 6 months In accordance with ASTM A-6 tables: 13, A1.13, 14, A1.14, 15, and A1.15 Dimensional 6 months The maximum measured distance between diagonals is 1 1/2 out tolerances of square, in accordance with ASTM A-6 tables: 1, 3, A1.1 and A1.3. WIDE PLATE STEEL (GUARANTEES) Note: Claims will be accepted no later than 6 months after shipment. 24

27 HOT ROLLED STEEL COIL HOT ROLLED STEEL COIL Mill edge, hot rolled coils are available in thicknesses of to depending on the complexity of the steel. Hot rolled steel coils are intended for applications where coil breaks and flatness requirements are not critical, or where customers have sheet processing equipment to reduce them. CLASSIFICATION The following steel types are classified by their resistance to deformation: I.- Low yield strength steel: All steel with a minimum yield strength of 30 ksi. II.- Medium yield strength steel: All steel with a minimum yield strength of 35 ksi. III.- High yield strength steel: All steel with a minimum yield strength of 45 ksi. HOT ROLLED STEEL COIL Note: All chemical composition tables indicate the maximum chemical percentage, unless stated otherwise. All mechanical property tables indicate the minimum performance value, unless stated otherwise. AHMSA manufactures steel coils up to 20 metric tons each. Please consult with a technical service representative for larger applications. 25

28 TABLE 8 LOW, MEDIUM, AND HIGH CARBON STEEL (SAE steel) Specification Note End use and typical applications SAE 1005, 1006, 1008, 4 Low carbon steel for moderate drawing cold reduction, 1010 and 1012 fabrication of commercial pipes, tubular profile, and poline shapes. SAE 1015, 1018, 1020, 4 Medium carbon steel for fabrication of structural pieces, cold 1021, 1025, 1030, reduction, machinery pieces, tools, blades and shovels and 1040 SAE 1045, 1050, 1055, 4 High carbon steel for tools, casings, cold reduction, 1060 and 1552 agricultural tools, and temper pieces. SAE 15B21, AHM 130-B 4 Boron steel for wear-resistant temper pieces, agricultural tools and plough disks. HOT ROLLED STEEL COIL Note 4: These grades are manufactured in all dimensions according to the indicated size range. Chemical composition Chemical composition (maximum %) Size Specification C Mn P S Si B range SAE SAE SAE SAE SAE SAE SAE SAE SAE SAE SAE SAE SAE SAE SAE SAE SAE SAE SAE 15B AHM 130-B

29 TABLE 9 HIGH FORMABILITY STEEL FOR AUTOMOTIVE PARTS Specification Note End use and typical applications ASTM A-1011 (DS) 2 Drawing quality - compressor casings. DIN EN DD11 6 Commercial/drawing quality for medium strength beams. DIN EN DD12 6 Commercial/drawing quality for medium strength beams. DIN EN DD13 6 Deep drawing quality - clutches. DIN EN DD14 6 Extra-deep drawing quality - compressor casings. SAE 1008/ Medium strength structural for beams. ASTM A , 50, 55, 60, 2 65 and 70 classes 1 and 2 ASTM A , 50, 55, 60, 7 For chassis, rings, rim centers, beams, and crossties. 65 and 70 classes 1 and 2 SAE J X/Y 4 High strength structural for automotive components. SAE J X/Y 4 Extra high strength structural for beams. Note 2: These grades are manufactured only in thicknesses less than Note 4: These grades are manufactured in all dimensions according to the indicated size range. Note 6: These grades are manufactured in thicknesses from 1.8 mm up to 11 mm. Note 7: This grade is produced starting from thickness and above. HOT ROLLED STEEL COIL Chemical composition and mechanical properties Chemical composition (maximum %) Specification C Mn P S Si Cb Yield strength min. ksi Tensile strength min. ksi Hardness HRB max. ASTM A-1011 (DS) T 65 1 DIN EN DD DIN EN DD DIN EN DD DIN EN DD SAE 1008/ T 65 1 ASTM A * T - 3 ASTM A * T - 3 ASTM A * T - 3 ASTM A * T - 4 ASTM A * T - 5 ASTM A * T - 5 ASTM A * T - 3 ASTM A * T - 3 ASTM A * T - 3 ASTM A * T - 4 ASTM A * T - 5 ASTM A * T - 5 SAE J X/Y T - 3 SAE J X/Y T - 5 Elong. in 2 min. % Bend test 180º Size range 1 These values are in MPa (Mega Pascals). Where a range is not specified, refer to the minimum value. 8 Refers to class 1 and 2 steel. For class 2, carbon is a maximum of 0.15%. ÿ Minimum %. 27

30 TABLE 10 STEEL FOR SHAPES, STRUCTURAL, AND GENERAL PURPOSES Specification Note End use and typical applications JIS G 3101 SS Medium strength steel for construction and structures. JIS G 3131 SPH C 4 Commercial steel for general manufacturing and moderate drawing. JIS G 3131 SPH E 4 Low carbon steel for general manufacturing and deep drawing. JIS G 3132 SPHT 1, 2, 3 and 4 4 Low and high strength for structural pipe. ASTM A 36 3 Medium strength for structural and moderate shape use. ASTM A 1011 CS TA and TB 2 Commercial steel for structural and moderate shape use. ASTM A 1011 SS 30 and 33 2 Low strength steel for structural moderate use. ASTM A 1011 SS 36 type 1 2 Medium strength steel for structural moderate use. and 2 and SS 40 ASTM A 1011 SS 45, 50 and 55 2 High strength steel for structural shape. ASTM A 1011 HSLAS 45, 50 2 and 8 High strength steel low alloy and improved ductility. and 55 class 1 and 2 ASTM A 1011 HSLAS 60 and 2 and 8 Micro alloyed steels for lighting poles and transmission towers. 65 class 1 and 2 ASTM A 1011 HSLAS 70 class 2 and 8 Micro alloyed steels of extra high strength for structural where 1 and 2 low weight is required. ASTM A 1018 SS 30 7 Heavy thickness steel, low strength for structural of moderate use. ASTM A 1018 SS 33 7 Heavy thickness steel, low strength for moderate use. ASTM A 1018 SS 36 type 1 7 Heavy thickness steel, medium strength for structural parts and 2 and SS 40 of moderate use. ASTM A , 55 and 60 3 High strength steel for structural pieces. ASTM A High strength steel for lighting poles and transmission towers. ASTM A 656 Gr 50, 60 and 70 3 High strength steel for structural pieces. ASTM A 1018 HSLAS 45, 50, 7 and 8 Heavy thickness steel for poles, structural parts with improved 55, 60, 65 class 1 and 2 weldability, ductility and malleability. ASTM A 1018 HSLAS 70 class 7 and 8 Micro alloyed steel extra high strength in heavy thickness for 1 and 2 structural use where low weight is requiredtural. ASTM A 131 A, B, D, E 3 ABS A, B, D, E 3 Medium strength structural steel for shipbuilding LLOYD S A, B, D, E 3 ASTM A and 50 3 Micro alloyed steel medium and HSLA strength to build bridges. DIN BS EN S-235 JR 4 Medium strength steel for structural and moderate use. DIN BS EN S-275 JR 4 DIN BS EN S-355 JR 4 High strength steel for structural use, bridges parts, containers, etc. SAE J-1392 Gr 50 X and Y 4 Micro alloyed steel for structural parts where the use is critical. HOT ROLLED STEEL COIL Note 2: Only available in thicknesses less than Note 3: Manufactured starting with thickness of Note 4: Offered in all dimensions according to the indicated size range. Note 7: Sizes with thicknesses greater than Note 8: Refer to class 2 steel grades that contain up to 0.15% of Carbon. 28

31 Chemical composition and mechanical properties Chemical composition (maximum %) Specification C Mn P S Si Cb V Yield strength min. ksi Tensile strength min. ksi JIS G 3101-SS T 1 JIS G 3131-SPH C T 1 JIS G 3131-SPH E JIS G 3132-SPHT T 1 JIS G 3132-SPHT T 1 JIS G 3132-SPHT T 1 JIS G 3132-SPHT T 3 ASTM A ASTM A 1011 CS TA ASTM A 1011 CS TB ASTM A 1011 SS T 1 ASTM A 1011 SS T 1 ASTM A 1011 SS 36 type T 1 ASTM A 1011 SS 36 type T 1 ASTM A 1011 SS T 1 ASTM A 1011 SS T 1 ASTM A 1011 SS T 3 ASTM A 1011 SS T 3 ASTM A 1011 HSLAS T 3 ASTM A 1011 HSLAS T 3 ASTM A 1011 HSLAS T 3 ASTM A 1011 HSLAS T 4 ASTM A 1011 HSLAS T 5 ASTM A 1011 HSLAS T 5 ASTM A 1018 SS T 1 ASTM A 1018 SS T 1 ASTM A 1018 SS 36 type T 1 ASTM A 1018 SS 36 type T 1 ASTM A 1018 SS T 1 ASTM A ASTM A ASTM A ASTM A ASTM A 656 Gr ASTM A 656 Gr ASTM A 656 Gr ASTM A 1018 HSLAS T 3 ASTM A 1018 HSLAS T 3 ASTM A 1018 HSLAS T 3 ASTM A 1018 HSLAS T 4 ASTM A 1018 HSLAS T 5 ASTM A 1018 HSLAS T 5 Elong. in 2 min. % Bend test 180º Size range HOT ROLLED STEEL COIL 8 These grades pertain to class 1 & 2 steel. Class 2 steel has a carbon content less than or equal to 0.15% as the minimum. Minimum %. 29

32 Chemical composition (maximum %) Specification C Mn P S Si Cb V Yield strength min. ksi Tensile strength min. ksi ASTM A 131 A, B, D, E ABS A, B, D, E LLOYD S A, B, D, E ASTM A ASTM A DIN BS EN S-235 JR DIN BS EN S-275 JR DIN BS EN S-355 JR SAE J-1392 Gr 50 X and Y Elong. in 2 min. % Bend test 180º Size range HOT ROLLED STEEL COIL TABLE 11 PRESSURE VESSEL STEEL Specification Note End use and typical applications ASTM/ASME SA-414-C 5 Low and medium tensile strength steel for pressure vessels. ASTM/ASME SA-285-C 3 Low and intermediate-tensile strength steel for fusionwelded pressure vessels. ASTM/ASME SA-414-G 5 High tensile strength steel for pressure vessels. NOM-011-SEDG-1999 High tensile strength steel for the Bodies and Tops of 2 DOT Gr 3 Portable Vessels. ASTM/ASME SA and 2 3 High tensile strength steel for Pressure Vessels. ASTM/ASME SA High tensile strength steel for Pressure Vessels, for 3 ASTM/ASME A Moderate and Lower Temperature Service. ASTM/ASME SA Railroad car tanks. Note 2: These grades are produced only in thicknesses less than Note 3: These grades are produced starting from thicknesses of Note 5: These grades are manufactured in thicknesses up to according to specification. Chemical composition and mechanical properties Chemical composition (maximum %) Specification C Mn P S Si Cb Yield strength min. ksi Tensile strength min. ksi ASTM/ASME SA-414-C ASTM/ASME SA-285-C ASTM/ASME SA ASTM/ASME SA-414-G NOM-011-SEDG DOT Gr ASTM/ASME SA ASTM/ASME SA ASTM/ASME SA ASTM/ASME SA Elong. in 2 min. % Size range 1 For thickness < For thickness > to

33 TABLE 12 PIPELINE, SUPPORT AND CASING STEEL Specification Note End use and typical applications API 5L-A ASTM A-252-Gr 2 and A-53-A API 5L-B and X-42 ASTM A-53-B API 5L-X-46, 52, 56 and 60 API 5L-X-65 and 70 API J Low strength pipeline. Medium strength pipeline. High strength pipeline. Support, casing and coated tubing. API X-52, 60 and 65 SG 1 and 4 High strength pipeline for sour service applications (sour gas). Note 1: For these steel grades, a production feasibility study is required. Note 4: These grades are manufactured in all dimensions, according to size range indicated. HOT ROLLED STEEL COIL Chemical composition and mechanical properties Chemical composition (maximum %) Specification C Mn P S Si Nb V Ti Yield strength min. ksi Tensile strength min. ksi API 5L-A (PSL 1) API 5L-B (PSL 1) (PSL 2) ASTM A-252-Gr ASTM A-53-A ASTM A-53-B API 5L-X-42 (PSL 1) (PSL 2) API 5L-X-46 (PSL 1) (PSL 2) API 5L-X-52 (PSL 1) (PSL 2) API 5L-X-56 (PSL 1) (PSL 2) API 5L-X-60 (PSL 1) (PSL 2) API 5L-X-65 (PSL 1) (PSL 2) API 5L-X-70 (PSL 1) (PSL 2) API J API X-52-SG API X-60-SG API X-65-SG Elong. in 2 min. % Size range 1 A production feasibility study is always required for these steel grades. Note: The weight of each coil must be between 6 to 20 metric tons depending of grade and dimensions. 31