AISI/SAE 4140: Heat-treatable steel (annealed condition) that can be used for a wide range of applications with a high degree of strength and toughness. Often used for demanding applications in automotive engineering. In quenched and tempered condition it is used in machine construction. Working hardness: 27-48 HRC.
AISI/SAE 4140: Mechanical engineering, machine parts, axes, knuckles, connecting rods, crankshafts, gear shafts, pinions, gears, bandages, base plates, assembling parts.
C | 038 | up to | 045 | Ni | - | up to | - | |
Si | - | up to | 04 | V | - | up to | - | |
Mn | 06 | up to | 09 | W | - | up to | - | |
P | - | up to | 0035 | Cu | - | up to | - | |
S | - | up to | 0035 | N | - | up to | - | |
Cr | 09 | up to | 12 | Ti | - | up to | - | |
Mo | 015 | up to | 03 | Co | - | up to | - |
Data given should to be taken as a guideline value.
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