AISI/SAE 4140: Versatile heat-treatable steel (annealed condition) with high strength and high toughness, that is often used for demanding applications in automotive engineering. Better machinability due to the addition of sulphur, very low distortion. Working hardness: 27-48 HRC.
AISI/SAE 4140: Mechanical engineering, machine components, 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 | 0,02 | 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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