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 | 0,38 | up to | 0,45 | Ni | - | up to | - | |
Si | - | up to | 0,4 | V | - | up to | - | |
Mn | 0,6 | up to | 0,9 | W | - | up to | - | |
P | - | up to | 0,04 | Cu | - | up to | - | |
S | - | up to | 0,04 | N | - | up to | - | |
Cr | 0,9 | up to | 1,2 | Ti | - | up to | - | |
Mo | 0,15 | up to | 0,3 | Co | - | up to | - |
Specifications
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