Chemical compositions of stainless steels to EN 10216-5

 Introduction

BS EN 10216-5 2004 is the European Standard for Stainless Steel Seamless Tubes for pressure purposes. It covers the following categories:

Austenitic corrosion resisting steels (21 grades)

Austenitic creep resisting steels (12 grades) including some which do not appear in EN 10302 also for creep resisting steels

Austenitic-ferritic (duplex) corrosion resisting steels (6 grades) 

Austenitic Corrosion Resisting Steels
Steel grade C Si Mn P S N Cr Cu Mo Nb Ni Ti Others
Steel name Steel number
X2CrNi18-9 1.4307 0.030 1.00 2.00 0.040 0.015 0.11 17.50/19.50 - - - 8.00/10.00 - -
X2CrNi19-11 1.4306 0.030 1.00  2.00  0.040  0.015  0.11  18.00/20.00  - 10.00/12.00
X2CrNiN18-10 1.4311 0.030  1.00  2.00  0.040  0.015  0.12/0.22  17.00/19.50  8.50/11.50
X5CrNi18-10 1.4301  0.07 1.00  2.00  0.040  0.015  0.11  17.00/19.50  - - 8.00/11.50 
X6CrNiTi18-10 1.4541 0.08  1.00  2.00  0.040  0.015  - 17.00/19.00  9.00/12.00  5xC/0.70 
X6CrNiNb18-10 1.4550  0.08  1.00  2.00  0.040  0.015  17.00/19.00  10xC/1.00 9.00/12.00  -
X1CrNi25-21 1.4335  0.020  0.25  2.00  0.025  0.010  0.11  24.00/26.00  0.20  - 20.00/22.00 - -
X2CrNiMo17-12-2 1.4404 0.030  1.00  2.00  0.040 0.015 0.11  16.50/18.50  2.00/2.50  10.00/13.00 
X5CrNiMo17-12-2 1.4401  0.07  1.00  2.00  0.040  0.015  0.11  16.50/18.50 - 2.00/2.50 - 10.00/13.00 - -
X1CrNiMoN22-2 1.4466 0.020  0.70  2.00  0.025  0.010  0.10/0.16  24.00/26.00  2.00/2.50  21.00/23.00 - -
X6CrNiMoTi17-12-2 1.4571 0.08 1.00  2.00  0.040 0.015  16.50/18.50 2.00/2.50  10.50/13.50  -
X6CrNIMoNb17-12-2 1.4580 0.08  1.00  2.00  0.040  0.015  16.50/18.50  2.00/2.50  10xC/1.00 10.50/13.50
X2CrNiMoN17-13-3 1.4429  0.030  1.00  2.00  0.040  0.015  0.12/0.22  16.50/18.50  2.50/3.00  11.00/14.00 
X3CrNiMo17-13-3 1.4436  0.05  1.00  2.00  0.040  0.015  0.11  16.50/18.50  2.50/3.00 10.50/13.00 
X2CrNiMo18-14-3 1.4435  0.030  1.00  2.00  0.040  0.015  0.11  17.00/19.00  2.50/3.00  12.50/15.00 
X2CrNiMoN17-13-5 1.4439  0.030  1.00  2.00  0.040  0.015  0.12/0.22  16.50/18.50  4.00/5.00  - 12.50/14.50  -
X1NiCrMoCu31-27-4  1.4563  0.020  0.70  2.00  0.030  0.010  0.11  26.00/28.00  0.70/1.50  3.00/4.00  30.00/32.00 
X1NiCrMoCu25-20-5  1.4539 0.020 0.70  2.00  0.030  0.010  0.15  19.00/21.00  1.20/2.00  4.00/5.00  24.00/26.00
X1NiCrMoCuN20-18-7  1.4547 0.020 0.70  1.00  0.030  0.010  0.18/0.25  19.50/20.50  0.50/1.00  6.00/7.00  17.50/18.50 
X1NiCrMoCuN25-20-7 1.4529  0.020  0.50  1.00  0.030  0.010  0.15/0.25  19.00/21.00  0.50/1.50  6.00/7.00  24.00/26.00 
X2NiCrAlTi32-20  1.4558  0.030  0.70  1.00  0.020  0.015  20.00/23.00  32.00/35.00  8x(C+N)/0.60  Al 0.15/0.45

 

Austenitic Creep Resisting Steels
Steel grade C Si Mn P S N Cr Cu Mo Nb Ni Ti Others
Steel name Steel number
X6CrNi18-10 1.4948 0.04/0.08 1.00 2.00 0.035 0.015 0.11 17.00/19.00 - - - 8.00/11.00 - -
X7CrNiTi18-10 1.4940 0.04/0.08 1.00  2.00  0.040  0.015  0.11  17.00/19.00  - 9.00/13.00 5x(C+N)/0.80
X7CrNiNb18-10 1.4912 0.04/0.10 1.00  2.00  0.040  0.015  0.11  17.00/19.00  10xC/1.20 9.00/12.00
X6CrNiTiB18-10 1.4941  0.04/0.08 1.00  2.00  0.035  0.015  - 17.00/19.00  - - 9.00/12.00  5xC/0.80 B 0.0015/0.0050
X6CrNiMo17-13-2 1.4918 0.04/0.08 0.75  2.00  0.035  0.015  0.11 16.00/18.00  2.00/2.50  12.00/14.00  -
X5NiCrAlT31-20 1.4958  0.03/0.08  0.70  1.50  0.015  0.010  19.00/22.00  0.50  0.10 30.00/32.50  0.20/0.50

Al 0.20/0.50 Al+Ti 0.70

Co 0.5

Ni+Co 30.0/32.5              

X8CrNiAlTi32-21 1.4959 0.05/0.10  0.70 1.50  0.015  0.010  - 19.00/22.00  0.50  - 30.00/34.00 0.25/0.65 Al 0.20/0.65
X3CrNiMoBN17-13-3 1.4910 0.04  0.75 2.00  0.035 0.015 0.10/0.18  16.00/18.00  2.00/3.00  12.00/14.00  B 0.0015/0.0050 
X8CrNiNb16-13 1.4961  0.04/0.10  0.30/0.60  1.50  0.035  0.015  - 15.00/17.00 - - 10xC/1.20 12.00/14.00 - -
X8CrNiMoVNb16-13 1.4988 0.04/0.10 0.30/0.60   1.50  0.035  0.015  0.06/0.14  15.50/17.50  1.10/1.50  10xC/1.20 12.50/14.50 - V 0.60/0/85
X8CrNiMoNb16-16 1.4981 0.04/0.10 0.30/0.60  1.50 0.035 0.015  15.50/17.50 1.60/2.00  10xC/1.20 15.50/17.50  -
X10CrNiMoMnNbVB15-10-1 1.4982 0.06/0/15  0.20/1.00  5.50/7.00  0.035  0.015  14.00/16.00  0.80/1.20  0.75/1.25 9.00/11.00

V 0.15/0.40

B 0.003/0.009 

 

Austenitic-Ferritic Steels
Steel grade C Si Mn P S N Cr Cu Mo Ni Others
Steel name Steel number
X2CrNiMoN22-5-3 1.4462 0.030 1.00 2.00 0.035 0.015 0.10/0.22 21.00/23.00 - 2.50/3.50 4.50/6.50 -
X2CrNiMoSi18-5-3 1.4424 0.030 1.40/2.00 1.20/2.00 0.035 0.015 0.05/0.10 18.00/19.00 - 2.50/3.00 4.50/5.20 -
X2CrNiN23-4 1.4362 0.030 1.00 2.00 0.035 0.015 0.05/0.20 22.00/24.00 0.10/0.60 0.10/0.60 3.50/5.50 -
X2CrNiMoN25-7-4 1.4410 0.030 1.00 2.00 0.035 0.015 0.20/0.35 24.00/26.00 - 3.00/4.50 6.00/8.00 
X2CrNiMoCuN25-6-3  1.4507 0.030 0.70  2.00  0.035  0.015  0.15/0.30  24.00/26.00  1.00/2.50  2.70/4.00  5.50/7.50 
X2CrNiM0CuWN25-7-4  1.4501 0.030  1.00  1.00  0.035  0.015  0.20/0.30  24.00/26.00  0.50/1.00  3.00/4.00  6.00/8.00  W 0.50/1.00

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