Hardness and Yield Strength
information on the alloys below


Machinability Weldability Toughness Wear Resistance Formability
Excellent Good Excellent Excellent Good
12L14 and 1215 for carbon and alloy steels; W1 for tool steels A36, 1018, 4130, 4150, 4340, 8620, O1 41L40, H13, S7, S2 8620, E52100, D2, M2/M7, M4 41L40, 4130, 8620, O1, W1
Very Good Fair Good Good Fair
1144 and 41L40 for carbon and alloy steels only 1045, 4140/4142, A2, A6, H13, S7 4140/4142, 4340, 8620, E52100, O1, P20, W1 41L40, A2, A6, H137 12L14, 4140/4142, A6, S
Good Difficult Fair Fair Difficult
A36, 1018, 1045, 1065, 4130, 4140/4142, and 8620 for carbon and alloy steels; O1 and P20 for tool steels 1065, 1144, 12L14, 1215, E52100, D2, M2/M7, W1 A2, A6 1144, 4140/4142, 4340, W1, O1, H13, S7, S2, P20 1045, 1144, E52100, A2, D2, M2/M7, H13
Fair Not Rated Poor Poor Not Recommended
4150, 4340 and E52100 for carbon and alloy steels; A2, A6, D2, H13, M2/M7, M4, and S7 for tool steels 1074/1075, 1095, 41L40, M4, P20, S2 1144, 12L14, D2, M2/M7, M4 12L14 1215
Not Rated   Not Rated Not Rated Not Rated
1074/1075, 1095   A36, 1018, 1045, 1065, 1074/1075, 1095, 1215, 4130, 4150 A36, 1018, 1045, 1065, 1074/1075, 1095, 1215, 4130, 4150 A36, 1018, 1065, 1074/1075, 4150, 4340, M4, P20, S2

Performance characteristics rated based on the annealed conditions of the specific material, except the Toughness and Wear Resistance ratings of tool steels which are rated after hardening. Source: McMaster-Carr.




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