GM AUTO STEEL
GB/T 3077 50CrMo4 Alloy Steel Plate
50CrMo4 is one of the last grades that is classified as structural steel for thermal improvement and its only similar steel grade is 50H - not containing Molybdenum.
50CrMo4 steel with a particular composition are dedicated for vehicles and machines that require high hardness and are subject to strong bending, twisting, abrasion and wear loads.
Chemical composition (%) of steel 50CrMo4:
C |
Si |
Mn |
P |
S |
Cr |
Mo |
0.46 - 0.54 |
max 0.4 |
0.5 - 0.8 |
max 0.025 |
max 0.035 |
0.9 - 1.2 |
0.15 - 0.3 |
GB/T 3077 50CrMo4 Mechanical properties:
Yield |
Tensile |
Impact |
Elongation |
182 (≥) |
769 (≥) |
44 |
32 |
GB/T 3077 50CrMo4 steel application:
50CrMo4 steel is used as semi-finished products for the manufacture of components such as crankshafts, cogwheels, heavy-duty axles, gears, valves, heavy-duty screws, thrust rollers, guides, articulated joints, thrust rings, bolts or bushes.
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