Q
whats's the chemical compositions of stainless steels to BS EN 10217-7
A

BS EN 10217-7 chemical composition tables

Corrosion resistant steels

DesignationChemical composition (% by mass - max unless stated)
Steel nameSteel numberCSiMnPSCrMoNiCuNOthersIn 10296-2?
Austenitic steels
X2CrNi18-91.43070.0301.002.000.0450.01517.5/19.5-8.0/10.0-0.11-Yes
X2CrNi19-111.43060.0301.002.000.0450.01518.0/20.0-10.0/12.0-0.11-Yes
X2CrNiN18-101.43110.0301.002.000.0450.01517.0/19.5-8.5/11.5-0.12/0.22-Yes
X5CrNi18-101.43010.071.002.000.0450.01517.0/19.5-8.0/10.5-0.11-Yes
X6CrNiTi18-101.45410.081.002.000.0450.01517.0/19.0-9.0/12.0--Ti 5xC/0.70Yes
X6CrNiNb18-101.45500.081.002.000.0450.01517.0/19.0-9.0/12.0--Nb 10xC/1.00Yes
X2CrNiMo17-12-21.44040.0301.002.000.0450.01516.5/18.52.0/2.510.0/13.0-0.11-Yes
X5CrNiMo17-12-21.44010.071.002.000.0450.01516.5/18.52.0/2.510.0/13.0-0.11-Yes
XCrNiMoTi17-12-21.45710.081.002.000.0450.01516.5/18.52.00/2.5010.5/13.5--Ti 5xC/0.70Yes
X2CrNiMo17-12-31.44320.0301.002.000.0450.01516.5/18.52.50/3.0010.5/13.0-0.11-Yes
X2CrNiMoN17-13-31.44290.0301.002.000.0450.01516.5/18.52.50/3.0011.0/14.0-0.12/0.22-Yes
X3CrNiMo17-13-31.44360.051.002.000.0450.01516.5/18.52.50/3.0010.5/13.0-0.11-Yes
X2CrNiMo18-14-31.44350.0301.002.000.0450.01517.0/19.02.50/3.0012.5/15.0-0.11-Yes
X2CrNiMoN17-13-51.44390.0301.002.000.0400.01516.5/18.54.00/5.0012.5/14.5-0.12/0.22-Yes
X2CrNiMo18-15-41.44380.0301.002.000.0450.01517.5/19.53.00/4.0013.0/16.0-0.11-No
X1NiCrMoCu31-27-41.45630.0200.702.000.0300.01026.0/28.03.00/4.0030.0/32.00.70/1.500.11-No
X1CrNiMoCu25-20-51.45390.0200.702.000.0300.01019.0/21.04.00/5.0024.0/26.01.20/2.000.15-Yes
X1CrNiMoCuN20-18-71.45470.0200.701.000.0300.01019.5/20.56.00/7.0017.5/18.50.50/1.000.18/0.25-Yes
X1NiCrMoCuN25-20-71.45290.0200.501.000.0300.01019.0/21.06.00/7.0024.0/26.00.50/1.500.15/0.25-No
Austenitic ferritic steels
X2CrNiN23-41.43620.0301.002.000.0350.01522.0/24.00.10/0.603.5/5.50.10/0.600.05/0.20-Yes
X2CrNiMoN22-5-31.44620.0301.002.000.0350.01521.0/23.02.50/3.504.5/6.5-0.10/0.22-Yes
X2CrNiMoN25-7-41.44100.0301.002.000.0350.01524.0/26.03.00/4.506.0/8.0-0.20/0.35-Yes
X2CrNiMoCuWN25-7-41.45010.0301.001.000.0350.01524.0/26.03.00/4.006.0/8.00.50/1.000.20/0.30W 0.50/1.00No

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