| Quantity: | |
|---|---|
| Category | Parameter | Value |
| Chemical Composition | Carbon (C) | 0.51–0.59 |
| Silicon (Si) | 1.20–1.60 | |
| Manganese (Mn) | 0.50–0.80 | |
| Phosphorus (P) | ≤0.025 | |
| Sulfur (S) | ≤0.025 | |
| Chromium (Cr) | 0.50–0.80 | |
| Mechanical Properties | Tensile Strength | 1450–1750 MPa |
| Yield Point | ≥1300 MPa | |
| Elongation After Fracture | ≥6% | |
| Shrinkage Rate | >25% | |
| Hardness | ≤280 HBW | |
| Physical Properties | Density | 7.85 g/cm³ |
| Melting Point | 1420°C | |
| Coefficient of Thermal Expansion | 11.5×10⁻⁶ /°C | |
| Heat Treatment | Quenching Temperature | 860°C ±10°C |
| Quenching Method | Oil cooling | |
| Tempering Temperature | 450°C ±10°C | |
| Tempering Purpose | Reduce stress, adjust hardness | |
| Forging | Heating Temperature | 1050–850°C |
| Forging Temperature | ≥840°C | |
| Cooling Method | Air cool to 850–880°C or oil quench | |
| Annealing Treatment | 375–500°C, air cooling |
High Elastic Limit
54SiCr6 exhibits an exceptionally high elastic and fatigue limit, enabling superior energy storage and return in high‑stress applications
Ultra‑High Strength
With tensile strength ranging from ~1450 to 1750 MPa and a yield point above ~1300 MPa, this steel delivers outstanding load-bearing performance
Excellent Fatigue Resistance
Especially after advanced processing like strain-assisted tempering, it achieves significantly enhanced fatigue life under cyclical loading
Optimal Hardness–Ductility Balance
The tempering process yields a good compromise between high hardness (≤280 HBW) and adequate ductility (elongation ≥6%), maintaining durability without brittleness
Benchmark for Heavy‑Duty Springs
Widely used in automotive suspension and industrial spring applications, 54SiCr6 serves as a standard reference for high-performance, heavy‑duty spring steel
Automotive Coil Springs
Widely used for high‑strength automotive suspension coil springs, enabling size and weight reduction while improving vehicle stability and fuel efficiency
Valve & Torsion Springs
Ideal for engine valve springs and torsional shafts due to its excellent fatigue resistance and elastic recovery performance
Industrial Vibration Dampers & Heavy‑Duty Springs
Commonly deployed in industrial machinery as vibration dampers and heavy-duty springs where high-load tolerance and cyclic durability are critical
Railway & Aerospace Applications
Used in railway rolling stock suspension elements and aerospace landing gear or control mechanisms, benefiting from its durability at extreme fatigue cycles and high stress levels
A: It is widely used in automotive suspension springs, valve springs, industrial dampers, and high-performance tools due to its high elasticity and fatigue strength.
A: It offers tensile strength of 1450–1750 MPa, yield point ≥1300 MPa, elongation ≥6%, and hardness ≤280 HBW.
A: Yes, it is a benchmark spring steel ideal for heavy-load, high-cycle environments like automotive and machinery parts.
A: It typically undergoes oil quenching at 860°C and tempering at 450°C to optimize hardness and reduce internal stress.
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| Category | Parameter | Value |
| Chemical Composition | Carbon (C) | 0.51–0.59 |
| Silicon (Si) | 1.20–1.60 | |
| Manganese (Mn) | 0.50–0.80 | |
| Phosphorus (P) | ≤0.025 | |
| Sulfur (S) | ≤0.025 | |
| Chromium (Cr) | 0.50–0.80 | |
| Mechanical Properties | Tensile Strength | 1450–1750 MPa |
| Yield Point | ≥1300 MPa | |
| Elongation After Fracture | ≥6% | |
| Shrinkage Rate | >25% | |
| Hardness | ≤280 HBW | |
| Physical Properties | Density | 7.85 g/cm³ |
| Melting Point | 1420°C | |
| Coefficient of Thermal Expansion | 11.5×10⁻⁶ /°C | |
| Heat Treatment | Quenching Temperature | 860°C ±10°C |
| Quenching Method | Oil cooling | |
| Tempering Temperature | 450°C ±10°C | |
| Tempering Purpose | Reduce stress, adjust hardness | |
| Forging | Heating Temperature | 1050–850°C |
| Forging Temperature | ≥840°C | |
| Cooling Method | Air cool to 850–880°C or oil quench | |
| Annealing Treatment | 375–500°C, air cooling |
High Elastic Limit
54SiCr6 exhibits an exceptionally high elastic and fatigue limit, enabling superior energy storage and return in high‑stress applications
Ultra‑High Strength
With tensile strength ranging from ~1450 to 1750 MPa and a yield point above ~1300 MPa, this steel delivers outstanding load-bearing performance
Excellent Fatigue Resistance
Especially after advanced processing like strain-assisted tempering, it achieves significantly enhanced fatigue life under cyclical loading
Optimal Hardness–Ductility Balance
The tempering process yields a good compromise between high hardness (≤280 HBW) and adequate ductility (elongation ≥6%), maintaining durability without brittleness
Benchmark for Heavy‑Duty Springs
Widely used in automotive suspension and industrial spring applications, 54SiCr6 serves as a standard reference for high-performance, heavy‑duty spring steel
Automotive Coil Springs
Widely used for high‑strength automotive suspension coil springs, enabling size and weight reduction while improving vehicle stability and fuel efficiency
Valve & Torsion Springs
Ideal for engine valve springs and torsional shafts due to its excellent fatigue resistance and elastic recovery performance
Industrial Vibration Dampers & Heavy‑Duty Springs
Commonly deployed in industrial machinery as vibration dampers and heavy-duty springs where high-load tolerance and cyclic durability are critical
Railway & Aerospace Applications
Used in railway rolling stock suspension elements and aerospace landing gear or control mechanisms, benefiting from its durability at extreme fatigue cycles and high stress levels
A: It is widely used in automotive suspension springs, valve springs, industrial dampers, and high-performance tools due to its high elasticity and fatigue strength.
A: It offers tensile strength of 1450–1750 MPa, yield point ≥1300 MPa, elongation ≥6%, and hardness ≤280 HBW.
A: Yes, it is a benchmark spring steel ideal for heavy-load, high-cycle environments like automotive and machinery parts.
A: It typically undergoes oil quenching at 860°C and tempering at 450°C to optimize hardness and reduce internal stress.
Ask ChatGPT
