Everything you should know about 4140 low-alloy steel
4140 steel is categorized as low alloy steel which contains some significant levels of manganese, molybdenum, and chromium elements. This metal is applicable in a wide range of industries thanks to its physical and structural toughness. The number 4140 refers to the type of steel metal where 4 stands for Molybdenum.
4140 alloy steel is a low alloy steel containing chromium, molybdenum, and manganese. It is widely used across numerous industries and is an excellent material choice due to its toughness, high fatigue strength, and abrasion and impact resistance. 4140 steel has good machinability in the annealed condition. It can be heat treated for higher hardness and strength. The hardness of this steel can be increased if it has been quenched and tempered.
Below are some important 4140 low-alloy steel properties
- Hardness and Extreme Ductility Due to the higher carbon and chromium content, 4140 steel is harder than normal steel.
- Anti-Corrosion Property 4140 steel, just like a lot of other steel, is susceptible to rust.
- Machinability 4140 steel also has good machinability.
- Mechanical Properties
- Elasticity
- Element Composition
- Anti-Rust Property
- Heat Treatment
The mechanical properties of 4140 include tensile strength, yield strength, elongation, reduction of area, impact resistance, and hardness. 4140 steel typically has a target ultimate tensile strength of around 95,000 psi.
