Chemical compositions of stainless steels to BS EN 10269
Introduction
BS EN 10269 is the material standard for stainless and heat-resisting steels, a selection of low alloy steels and some nickel alloys for fasteners. The standard includes some elevated and sub-zero temperature mechanical properties and can be used for specifying fasteners for pressure purposes. Austenitic, martensitic and precipitation hardening stainless grades are included. Only the chemical composition of the stainless steels in the standard are listed in this article.
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The data given is not intended to replace that shown in individual standards to which reference should always be made.
BS EN 10269 chemical composition table
| Designation |
Chemical composition (% by mass – max unless stated) |
| Steel name |
Steel number |
C |
Si |
Mn |
P max |
S max |
Al tot |
B |
Cr |
Mo |
Ni |
V |
Others |
| Steels for quenching and tempering |
| X22CrMoV12-1 |
1.4923 |
0.18/0.24 |
0.50 |
0.40/0.90 |
0.025 |
0.015 |
– |
– |
11.00/12.50 |
0.80/1.20 |
0.30/0.80 |
0.20/0.35 |
– |
| X12CrNiMoV12-3 |
1.4938 |
0.08/0.15 |
0.50 |
0.40/0.90 |
0.025 |
0.015 |
– |
– |
11.00/12.50 |
1.50/2.00 |
2.00/3.00 |
0.25/0.40 |
N 0.020/0.040 |
| X19CrMoNbVN11-1 |
1.4913 |
0.17/0.23 |
0.50 |
0.40/0.90 |
0.025 |
0.015 |
0.020 |
0.0015 |
10.00/11.50 |
0.50/0.80 |
0.20/0.60 |
0.10/0.30 |
N 0.25/0.55: N 0.05/0.10 |
| Austenitic steels |
| X2CrNi18-9 |
1.4307 |
0.030 |
1.00 |
2.00 |
0.045 |
0.030 |
– |
– |
17.50/19.50 |
– |
8.00/10.00 |
– |
N 0.11 |
| X5CrNi18-10 |
1.4301 |
0.07 |
1.00 |
2.00 |
0.045 |
0.030 |
– |
– |
17.00/19.50 |
– |
8.00/10.50 |
– |
N 0.11 |
| X4CrNi18-12 |
1.4303 |
0.06 |
1.00 |
2.00 |
0.045 |
0.030 |
– |
– |
17.00/19.00 |
– |
11.00/13.00 |
– |
N 0.11 |
| X2CrNiMo17-12-2 |
1.4404 |
0.030 |
1.00 |
2.00 |
0.045 |
0.030 |
– |
– |
16.50/18.50 |
2.00/2.50 |
10.00/13.00 |
– |
N 0.11 |
| X5CrNiMo17-12-2 |
1.4401 |
0.07 |
1.00 |
2.00 |
0.045 |
0.030 |
– |
– |
16.50/18.50 |
2.00/2.50 |
10.00/13.00 |
– |
N 0.11 |
| X2CrNiMoN17-13-3 |
1.4429 |
0.030 |
1.00 |
2.00 |
0.045 |
0.030 |
– |
– |
16.50/18.50 |
2.50/3.00 |
11.00/14.00 |
– |
N 0.12/0.22 |
| X3CrNiCu18-9-4 |
1.4567 |
0.04 |
1.00 |
2.00 |
0.045 |
0.030 |
– |
– |
17.00/19.00 |
– |
8.50/10.50 |
– |
N 0.11: Cu 3.00/4.00 |
| X6CrNi18-10 |
1.4948 |
0.04/0.08 |
1.00 |
2.00 |
0.035 |
0.015 |
– |
– |
17.00/19.00 |
– |
8.00/11.00 |
– |
N 0.11 |
| X10CrNiMoMnNbVB15-10-1 |
1.4982 |
0.07/0.13 |
1.00 |
5.50/7.00 |
0.040 |
0.030 |
– |
0.003/0.009 |
14.00/16.00 |
0.80/1.20 |
9.00/11.00 |
0.15/0.40 |
N 0.11: Nb 0.75/1.25 |
| X3CrNiMoBN17-13-3 |
1.4910 |
0.04 |
0.75 |
2.00 |
0.035 |
0.015 |
– |
0.0015/0.0050 |
16.00/18.00 |
2.00/3.00 |
12.00/14.00 |
– |
N 0.10/0.18 |
| X6CrNiMoB17-12-2 |
1.4919 |
0.04/0.08 |
1.00 |
2.00 |
0.035 |
0.015 |
– |
0.0015/0.0050 |
16.50/18.50 |
2.00/2.50 |
10.00/13.00 |
– |
N 0.11 |
| X6CrNiTiB18-10 |
1.4941 |
0.04/0.08 |
1.00 |
2.00 |
0.035 |
0.015 |
– |
0.0015/0.0050 |
17.00/19.00 |
– |
9.00/12.00 |
– |
Ti 5 x C/0.80 |
| X6NiCrTiMoVB25-15-2 |
1.4980 |
0.03/0.08 |
1.00 |
1.00/2.00 |
0.025 |
0.015 |
0.35 |
0.0030/0.010 |
13.50/16.00 |
1.00/1.50 |
24.00/27.00 |
0.10/0.50 |
Ti 1.90/2.30 |
| X7CrNiMoBNb16-16 |
1.4986 |
0.04/0.10 |
0.30/0.60 |
1.00 |
0.045 |
0.030 |
– |
0.05/0.10 |
15.50/17.50 |
1.60/2.00 |
15.50/17.50 |
– |
Nb+Ta 10xC/1.20 |
Note
Al tot – total aluminium
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