Chemical Composition Chart

The Fundamental DNA of Engineering Steels.

A steel's performance—its strength, hardness, toughness, and machinability—is dictated by its precise chemical makeup. This comprehensive, searchable chart provides the fundamental data for all our major grades in one convenient place, empowering you to compare materials and verify the foundational chemistry of your components.

Grade C % Si % Mn % P % (max) S % (max) Cr % Mo % Ni % B % Pb %
EN8D/C450.40-0.480.10-0.400.60-0.900.0400.050-----
EN90.50-0.600.05-0.350.50-0.800.0500.050-----
SAE 10180.15-0.20-0.60-0.900.0400.050-----
SAE 15410.36-0.44-1.35-1.650.0400.050-----
EN180.35-0.450.10-0.350.60-0.900.0400.0500.80-1.10----
EN19/41400.36-0.440.10-0.350.50-0.80--0.90-1.200.20-0.35---
EN240.36-0.44-0.45-0.70--1.00-1.400.20-0.351.30-1.70--
EN31/521000.95-1.100.10-0.350.40-0.70--1.20-1.60----
16MnCr50.14-0.190.40 max1.00-1.30--0.80-1.10----
20MnCr50.17-0.220.40 max1.10-1.40--1.00-1.30----
86200.18-0.23-0.70-0.90--0.40-0.600.15-0.250.40-0.70--
SCM4200.18-0.230.15-0.350.60-0.90--0.90-1.200.15-0.30---
EN3530.14-0.20-0.50-0.90--0.75-1.15-3.00-3.75--
EN420.75-0.850.10-0.350.50-0.80-------
SAE 92540.51-0.591.20-1.600.60-0.80--0.60-0.80----
EN1A0.07-0.15-0.80-1.200.07 max0.25-0.35-----
EN1AL0.07-0.15-0.80-1.200.07 max0.25-0.35----0.15-0.35
12L140.15 max-0.85-1.150.04-0.090.26-0.35----0.15-0.35
EN8M0.35-0.450.10-0.401.00-1.300.0500.20-0.30-----
10B210.18-0.23-0.70-1.000.0300.035---.0005-.003-
15B250.22-0.29-1.10-1.400.0300.035---.0005-.003-
15B410.37-0.44-1.35-1.650.0300.035---.0005-.003-
51B370.35-0.40-0.75-1.00--0.70-0.90--.0005-.003-