Enhanced version of 316/316L austenitic stainless steel. Better material performance at a lower cost. Juha Kela 16.6.2014 8 July 2014 1
Lower cost 8 July 2014 2
Lower cost 316 plus is available at lower, more stable prices Lower total transaction price due to lower alloy surcharge compared to 316L (calculation averaged over Feb-Apr 2014) Better cost stability compared to standard Cr-Ni-Mo alloyed austenitic grades Less price volatile alloys of Ni and Mo 8 July 2014 3
High corrosion resistance 8 July 2014 4
High corrosion resistance 316 plus is easier to specify in highly corrosive environments Considerable improvement over typical austenitic grades, including 316L (1.4404) Higher PRE of ~26 due to alloy content with >20% Cr, 0.7% Mo and 0.2% N Low risk of intergranular corrosion even after welding thermal cycle due to low carbon content (<0.03%) 8 July 2014 5
Chemical composition Outokumpu designation 316 plus 4307 4404 Typical values Austenitic 1.4420 Austenitic 1.4307 Austenitic 1.4404 C Si Cr Ni Mo Mn N <0,03 0,45 20,30 8,60 0,70 1,80 0,20 <0,03 ~0,40 18,10 8,10 - ~1,50 ~0,05 <0,03 ~0,40 16,70 10,10 2,05 ~1,00 ~0,05 Mechanical properties Outokumpu designation 1,5mm 2B typical values Rp 0,2 N/mm2 Rp 1,0 N/mm2 Rm N/mm2 Ag % A50/80 % HV10 316 plus 4307 4404 Austenitic 1.4420 Austenitic 1.4307 Austenitic 1.4404 385 405 725 31,5 42,5 195 285 317 622 48,8 54,5 168 290 319 603 45,8 53,5 166 8 July 2014 6
Higher corrosion resistance plus excellent formability 8 July 2014 7
Higher strength 8 July 2014 8
Higher strength 316 plus enables more end products with less material Remarkably higher strength (+100 MPa) compared to 316L due to Nitrogen alloying Makes thinner gauges possible, enabling lighter structures 8 July 2014 9
Tank calculation comparison Example 1: Diameter 10 m, height 20 m Comparison of 316L vs. 316 plus 316 PLUS 316 Saving of 8 % in material purchase Example 2: Diameter 10 m, height 25 m Comparison of 316L vs. 316 plus Saving of 11 % in material purchase 8 July 2014 10
Higher strength plus higher corrosion resistance 8 July 2014 11
Less emissions 8 July 2014 12
Less emissions 316 plus decreases your carbon footprint Higher strength 316 plus enables lighter structures and increased transport loads Increasing transport loads decreases total transports needed and reduces fuel consumption Outokumpu is committed to helping reduce emissions worldwide ours, yours, and your customers Target to reduce carbon profile 20% per ton by 2020 compared to 2009 level. 8 July 2014 13
Excellent formability 8 July 2014 14
Excellent formability 316 plus formability features comparable to 316L Ideal for many types of applications Stretch forming similar to 316L according to Erichsen Index Deep-drawing similar to 316L according to LDR value 8 July 2014 15
-196 / +550-40 / +250-40 / +250 Wide range of usage temperatures Usage temperature 8 July 2014 16
Lower cost plus higher strength Higher corrosion resistance plus excellent formability Lower cost plus higher corrosion resistance Higher strength plus higher corrosion resistance 8 July 2014 17
Material performance comparison Strength 316L 316 plus LDX 2101 Corrosion resistance Stress corrosion and corrosion fatigue Fatigue resistance Not tested Not tested Formability Temperature range Erosion / abrasion resistance Cryogenic -196 C / +550 C Cryogenic -196 C / +550 C -40 / +250 C Lower price volatility due to low Nicontent Ni 10.1 Ni 8.6 somewhat less volatile than 316L Ni 1.5 clearly less volatile than 316L 8 July 2014 18
Product availability 316 plus Grade Surface Thickness Width range 4420 1D 3,5 8,5 Depending on thickness 4420 2E 2,3 4,5 Depending on thickness 4420 2B 0,8 5,0 Depending on thickness 4420 3N, 4N 0,8 4,0 Depending on thickness 4420 Maximum width is 1500 mm Note: thickness > 8 mm, only untrimmed coils available 8 July 2014 19
Product samples and testing All inquiries for these steel grades should be submitted to Tornio Research Centre The material quantity can range from A4 size to several melts A4 sizes are in stock, delivered on demand for customers In case of bigger amounts of samples, negotiations are needed & delivery time take longer 8 July 2014 20
Standardizations EN 1.4420 registered for 316 plus EN 10028-7/ASTM A240 standardization and UNS number application processes started and expected to be finalized during 2015 Pressure vessel approvals Particular Material appraisal (PMA) Case by case before pressure vessel standardization 8 July 2014 21
Suitable applications Outokumpu 316 plus fits these type of applications: General use, Cathode Plates, Heavy construction industry, Building façades, Piping, Water treatment, Pulp and paper industry, Heat exchangers, Tanks And it does not fit for usage in very high temperatures or very aggressive/corrosive environments. It fits pressure vessel applications, but need a PMA case by case. 8 July 2014 22
Tornio Customer Service Contacts EMEA region Jouni Kujansuu Product Manager Technical Customer Service Jouni.Kujansuu@outokumpu.com Mobile Phone: +358 40 841 1508 Telephone: +358 16 453276 Hannele Aikio Product Manager Technical Customer Service Hannele.Aikio@outokumpu.com Mobile Phone: +358 40 536 3185 Telephone: +358 16 454270 Jorma Rukajarvi Product Manager Technical Customer Service Jorma.Rukajarvi@outokumpu.com Mobile Phone: +358 40 824 3797 Telephone: +358 16 452772 Erkki Palsi Product Manager Technical Customer Service Erkki.Palsi@outokumpu.com Mobile Phone: +358 40 849 7843 Telephone: +358 16 452388 Americas Jukka Moilanen Product Manager Technical Customer Service Jukka.Moilanen@outokumpu.com Mobile Phone: +358 40 861 9201 Telephone: +358 16 452623 APAC Ville Hakkarainen Product Manager Technical Customer Service Ville.Hakkarainen@outokumpu.com Mobile Phone: +358407123867 8 July 2014 23
Feedback on 316 plus? Please contact: juha.kela@outokumpu.com 8 July 2014 24
Appendixes 8 July 2014 25
Austenitic stainless steel tree (Euroinox) SOURCE: http://www.euroinox.org/pdf/map/what_is_stainless_st eel_en.pdf The new 316 plus 8 July 2014 26
Corrosion resistance in salt spray test Test conditions: 5% NaCl, 5 min spraying, 55 min drying at 35 C, humidity 70 % Austenitic 1.4404 17Cr 10Ni 2Mo 2B finish After 1 day After 3 days After 7 days Outokumpu 316 plus Austenitic EN 1.4420 X2CrNiMoN20-8-1 2B finish 8 July 2014 27
Corrosion resistance - CPT Localized pitting resistance compared to various different austenitic or duplex grades. Typical critical pitting temperature values determined in 1 M NaCl (320-grit) according to ASTM G150. 8 July 2014 28
Corrosion resistance Localized pitting resistance is superior to 1.4404 / 316L. Results are average of 6 samples. 8 July 2014 29
Sheet formability High Erichsen Index and Limiting Drawing Ratio (LDR) makes this grade excellent choice for many sheet forming applications. Swift-cup LDR Erichsen 8 July 2014 30
Weldability Low carbon content (<0,03 %) prevents the precipitation of Cr carbides avoiding intergranular corrosion in welds. Nitrogen improves weld metal corrosion resistance in general and strength at elevated temperatures. Solidification in F-A mode prevents hot cracking. Grade is not prone to intermetallic phase transformation. Modified (18 hours annealing) intergranular corrosion test EN ISO 3651-2 (Strauss-test) for base material: PASSED 8 July 2014 31
Impact Competitive and stable price compared to 316L Decreased Ni & Mo alloying Higher corrosion resistance compared to 316L Higher strength compared to 316L (+100 Mpa) Possibility to use thinner gauges, save material and decrease emissions and carbon foot print Good formability Good formability in spite of higher strength Excellent weldability Wide range of potential applications 8 July 2014 32