AISI 4140 Steel, normalized at 870°C (1600°F), reheated to 845°C (1550°F), oil quenched, 260°C (500°F) temper, 25 mm (1 in.) round
Subcategory: Low Alloy Steel; AISI 4000 Series Steel; Medium Carbon Steel; Metal
Close Analogs: AISI 4140H
Key Words: ASTM A322, ASTM A331, ASTM A505, ASTM A519, ASTM A646, B.S. 708 A 42 (UK), B.S. 708 M 40 (UK), B.S. 709 M 40 (UK), JIS SCM 4 H, JIS SCM 4, SS14 2244 (Sweden), MIL SPEC MIL-S-16974, SAE J404, SAE J412, SAE J770, DIN 1.7225, UNS G41400, AMS 6381, AMS 6382, AMS 6390, AMS 6395, IS 1570 40Cr1Mo28, IS 4367 40Cr1Mo28, IS 5517 40Cr1Mo28
Material Notes: Sample normalized at 870°C, reheated to 845°C (1550°F), oil quenched, and tempered at 260°C. As quenched hardness after oil quenching: Surface - 55 HRC, 1/2 radius - 55 HRC; Center - 50 HRC
Available Properties |
- Density
- Hardness, Brinell
- Hardness, Knoop
- Hardness, Rockwell C
- Hardness, Vickers
- Tensile Strength, Ultimate
- Tensile Strength, Yield
- Elongation at Break
- Reduction of Area
- Modulus of Elasticity
- Bulk Modulus
- Poissons Ratio
- Izod Impact
- Machinability
- Shear Modulus
- Electrical Resistivity
- Electrical Resistivity at Elevated Temperature
- CTE, linear 20°C
- CTE, linear 250°C
- CTE, linear 500°C
- Specific Heat Capacity at Elevated Temperature
- Thermal Conductivity
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Property Data |
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