50CrV4 is a German standard spring steel, equivalent to Chinese GB 50CrVA.
50CrV4 spring steel is a high-quality steel alloy characterized by its excellent mechanical properties, toughness, and fatigue resistance.
This steel grade is primarily used in the manufacturing of springs and is popular for its resistance to wear and tear, high yield strength, and excellent elasticity.
50CrV4 spring steel is a tough, shock resisting, shallow hardening chromium vanadium steel having high fatigue and impact resistance in the heat treated condition.It is used extensively in gears, pinions, springs, shafts, axles, pins, bolts, etc., which require high modulus of resilience.
Specification
Material:50CrV4 Steel
Forms:Strip,Plate,Sheet,Coils,etc
50CrV4 Steel Plate Thickness:0.70mm-8.0mm
50CrV4 Steel Plate Width:6mm-450mm
50CrV4 steel is typically available in hardened and tempered conditions. For easy machineability, it is also available in a soft, annealed state. Furthermore, it comes in a variety of forms such as round bars, flat bars, sheets, plates, and wire.
50CrV4 Chemical Composition
|
C(％) |
0.46-0.54 |
|
Si(％) |
0.17-0.37 |
|
Mn(％) |
0.50-0.80 |
|
P(％) |
≤0.030 |
|
S(％) |
≤0.030 |
|
Cr(％) |
0.80-1.10 |
|
Ni(％) |
≤0.35 |
|
Cu(%) |
≤0.25 |
|
V(%) |
0.10-0.20 |
Mechanical Properties
|
Tensile Strength σb (MPa): |
≥ 1274 (130) |
|
Yield Strength σ0.2 (MPa): |
≥1127 (115) |
|
Elongation δ5 (%): |
≥ 10 |
|
Reduction of area ψ (%): |
≥25 |
|
Hardness: |
Max. 280HB |
Material Equivalent
American grade: G61500
Japanese grade: SUP10
China GB grade: 50CrVA
British grades: 735A51
French grade: 50CrV4
50CrV4 spring steel has good mechanical properties and process performance, high hardenability, adding vanadium to refine the grain of the steel, reduce overheating sensitivity, improve strength and toughness, have high fatigue strength, and have a high yield ratio. , But poor weldability and low cold deformation plasticity. It is a higher-grade spring, used as a high-load important spring with a larger section and a valve spring, piston spring, safety valve spring, etc. with an operating temperature of <300 ℃.
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