4140 Q&T Low Hardness
MIM 4140 is a low alloy steel with Chromium, Molybdenum and Manganese alloying elements. It can be heat treated with a quench & temper process to various hardness levels. Tempered to a lower hardness, the alloy exhibits good strength and ductility. OptiMIM’s 4140 has higher tensile strength, yield strength, and impact resistance than wrought 4140.
Mechanical Properties
Composition
Low Alloy Steel | |
---|---|
% | 4140 Q&T Low Hardness |
Iron (max) | Balance |
Nickel (max) | |
Molybdenum | 0.2 - 0.3 |
Silicon | 0.6 |
Carbon | 0.3 - 0.5 |
Chromium | 0.8 - 1.2 |
Cobalt | |
Manganese | 1 Max |
Copper | |
Niobium | |
Aluminum | |
Magnesium | |
Titanium | |
Zirconium | |
Niobium + Tantalum | - |
Phosphorus | 0.035 Max |
Sulfur | 0.04 |
RoHS Compliant | ✓ |