Zuverlässigkeit durch Qualitätsmanagement Reliability by quality management Reliability by quality management - ISO 9001
The European Standard EN ISO 1127:1996 has status of a German Norm National foreword German version EN ISO 1127:1996 Descriptors: steel tubes, stainless steel, dimension, border dimension This European standard EN ISO 1127 applies in the area of responsibility of the technical coittee ECISS/TC 29 steel tubes and fittings for steel tubes (secretariat: Italy) of the European coittee for iron- and steel standardisation (ECISS). The responsible German standards coittees are the subcoittees 09/5 non-rusting steel tubes and 09/8 steel tube dimensions and border dimensions of the standards coittee iron and steel (EFS). Modifications Compared to DIN 2462-1:1981-03 and DIN 2463-1:1981-03 were made following changes: a) definition for seamless and welded tubes were affiliated in the standardisation b) differentiation of seamless and welded tubes allotted c) agreement to the border dimensions of the tube length deleted d) tolerance class and border dimensions changed e) values for the defined f) some values of the fibre coarseness deleted g) ordering information deleted Earlier editions DIN 2462-1: 1969-03, 1981-03 DIN 2463-1: 1969-03, 1981-03 9/14
Foreword The text of the international standardisation of ISO/TC 5 ferrous metal pipes and metallic fittings of the international organisation for standardisation (ISO) was assumed as European standardisation by the technical coittee ECISS/TC 29 steel tubes and fittings for steel tubes, which secretariat was unexpended from UNI. This European standardisation have to achieve the status of a national standardisation, either by a publication of a identical text or by approval till October 1996 and any opposed national norms have to be retired till October 1996. Accordant to the CEN/CEN ELEC- by-laws the following named national standardisations, have to adopt this European norms: Belgium, Denmark, Germany, Finland, France, Greece, Ireland, Iceland, Italy, Luxembourg, Netherlands, Norway, Austria, Portugal, Spain, Sweden, Switzerland and the united kingdom. 3 Dimensions The and the wall thickness, the of this European norm specified tubes, were chosen by ISO 4200 (1). If a wall thickness bigger than 14,2 is required, you have to choose it also by ISO 4200. 4 Limiting sizes The for the and the wall thickness of the tubes acceptable limiting sizes are dependent on the manufactured steel grade and heat treatment. The limiting sizes you have to chose of the denoted values on table 1 and 2. 4.1 Limiting sizes for the see table 1 Table1. Limiting sizes for the Approval-note The text of the international standardisation ISO 1127:1992 was allowed of CEN as European norm without any alteration. 1 Coverage This European standardisation specified diameter, wall thickness, border dimension and values for the fibre coarseness of stainless steel tubes. tolerance class limiting sizes for the D 1 ± 1,50 % mit min. ± 0,75 D 2 ± 1,00 % mit min. ± 0,50 D 3 ± 0,75 % mit min. ± 0,30 D 4 ± 0,50 % mit min. ± 0,10 The limiting sizes for the contained the ovality. 4.2 Limiting sizes for the wall thickness see table 2 Table2. Limiting sizes for the wall thickness 2 Normative references The following norms contains agreements which, as refer on it in the present text, demonstrate the agreements of this international norm. At the publication point the denoted edition was guilty. All norms liable to the revision and the partner of the agreements which based on the present international standardisation are required to apply the newest edition at of the bottom denoted norms. Members of the ICE and the ISO keep the indexes of the actual guilty international norms. ISO 5252: 1991 steel tubes tolerance system tolerance class limiting sizes for the wall thickness T 1 ± 15,0 % mit min. ±0,60 T 2 ± 12,5 % mit min. ±0,40 T 3 ± 10,0 % mit min. ±0,20 T 4 ± 7,5 % mit min. ±0,15 T 5 ± 5,0 % mit min. ±0,10 The limiting sizes for the wall thickness contained the eccentricity 4.3 Other Limiting sizes For other limiting sizes, as this for the and the wall thickness, consider ISO 5252. 9/15
EN ISO 1127: 1996 Table 3 5 Values of the fibre coarseness The values of the fibre coarseness in table 3 for austenitic non-rusting steel tubes results of the multiplication of the according values of ISO 4200 with the factor 1,015. This factor act on the assumption of the average density of this tubes from 7,97 kg/dm³. The values of the fibre coarseness in table 4 for ferritic, martensitic stainless steel tubes results of the multiplication of the according values of ISO 4200 mit the factor 0,985. This factor act on the assumption of the average tightness of this tubes from 7,73 kg/ dm³. Table 3: Usual values of the fibre coarseness of austenitic non-musting steels thickness, 9/16
EN ISO 1127: 1996 Table 3 Table 3: Usual values of the fibre coarseness of austenitic non-musting steels thickness, 9/17
EN ISO 1127: 1996 Table 3 Table 3: Usual values of the fibre coarseness of austenitic non-musting steels thickness, 9/18
EN ISO 1127: 1996 Table 4 Table 4: Usual values of the fibre coarseness of austenitic non-musting steels thickness, 9/19
EN ISO 1127: 1996 Table 4 Tabelle 4. Fortsetzung: Table 4: Usual Übliche values Werte of the der fibre längenbezogenen coarseness of Masse austenitic austenitischer non-musting nichtrostender steels Stähle thickness, 9/20
EN ISO 1127: 1996 Table 4 Table 4: Usual values of the fibre coarseness of austenitic non-musting steels thickness, Annex A (informative) bibliography (1) ISO 4200:1991 Plain and steel tubes, welded and seamless General tables of dimensions and masses per unit length. 9/21
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