| Quantity: | |
|---|---|
| Category | Parameter | Value |
| Chemical Composition | C | 0.54-0.60 |
| Si | 1.5-2.0 | |
| Mn | 0.70-1.00 | |
| S | ≤0.035 | |
| P | ≤0.035 | |
| Cr | ≤0.35 | |
| Ni | ≤0.35 | |
| Cu | ≤0.25 | |
| V | 0.08-0.16 | |
| Mechanical Properties | Tensile Strength | 1270-1370 MPa |
| Yield Strength | 980 MPa | |
| Elongation | 9% | |
| Brinell Hardness (HB) | 285-321 | |
| Heat Treatment | Quenching | 870±10℃, oil cooling to improve hardness and strength |
| Tempering | 480±10℃, reduce quenching stress and improve toughness | |
| Isothermal Quenching | Quench at 870℃, oil cool, nitrate bath at 250℃ for 20 min | |
| Critical Temperature - Ac1 | 755℃ | |
| Critical Temperature - Ac3 | 810℃ | |
| Critical Temperature - Ar3 | 770℃ | |
| Critical Temperature - Ar1 | 700℃ | |
| Martensite Start (Ms) | 305℃ | |
| Forging | Forging Purpose | Must be forged to avoid longitudinal cracking |
| Post-Forging Treatment | Spheroidizing annealing to relieve stress and homogenize carbides | |
| Hot Working Specifications | Initial forging at 1100℃, final forging at 850℃ |
High Tempering Stability
The elevated silicon and manganese content grants 60Si2MnA exceptional resistance to temper softening, ensuring stable hardness after tempering under demanding thermal conditions
Superior Hardenability
With deeper hardening capability than standard 60Si2Mn grades, this steel achieves uniform martensitic microstructure even in thicker sections, leading to reliably high strength
High Toughness & Plasticity
Designed for optimal balance of toughness and ductility, 60Si2MnA delivers outstanding impact resistance and fatigue life in high‑stress spring and mechanical parts
Outstanding Wear Resistance
Excellent abrasion resistance makes it ideal for grinding machine spindles, railway track clips, precision screws, and other wear-intensive components
Cost‑Effective Hot‑Working Material
Offers excellent hot forging performance with relatively low alloying cost, making it a preferred choice for medium‑section springs and dies across heavy industries
Automotive Suspension Springs
60Si2MnA’s exceptional hardenability, fatigue resistance and elasticity make it ideal for fabrication of coil, leaf and disc springs in heavy‑duty vehicle suspension systems
Railway Fastening Components
Used extensively in rail anchors, clips and anti‑creepers due to its high elasticity and wear resistance, which help curb rail creep under cyclic loads
Wear‑Resistant Precision Parts
Perfect for grinding‑machine spindles, spring chucks, precision screws and roller‑bearing rings, owing to its high surface hardness and stable tempering performance
Cold‑Heading Tools & Dies
Suited for cold‑heading punches, extrusion dies and stamping tools where its toughness and strength significantly extend service life under repetitive forming operations
Q: What is 60Si2MnA steel commonly used for?
A: It is widely used in automotive springs, railway clips, precision mechanical parts, and wear-resistant tools.
Q: What makes 60Si2MnA suitable for heavy-duty applications?
A: Its high hardenability, excellent tempering stability, and superior wear resistance ensure reliable performance under cyclic loads.
Q: Can 60Si2MnA be hot forged?
A: Yes, it offers excellent hot-working properties, making it ideal for forging processes requiring high toughness and uniform hardness.
Q: How does 60Si2MnA improve fatigue life in springs?
A: Its optimized silicon-manganese composition enhances elasticity and reduces decarburization, increasing fatigue resistance.
| Category | Parameter | Value |
| Chemical Composition | C | 0.54-0.60 |
| Si | 1.5-2.0 | |
| Mn | 0.70-1.00 | |
| S | ≤0.035 | |
| P | ≤0.035 | |
| Cr | ≤0.35 | |
| Ni | ≤0.35 | |
| Cu | ≤0.25 | |
| V | 0.08-0.16 | |
| Mechanical Properties | Tensile Strength | 1270-1370 MPa |
| Yield Strength | 980 MPa | |
| Elongation | 9% | |
| Brinell Hardness (HB) | 285-321 | |
| Heat Treatment | Quenching | 870±10℃, oil cooling to improve hardness and strength |
| Tempering | 480±10℃, reduce quenching stress and improve toughness | |
| Isothermal Quenching | Quench at 870℃, oil cool, nitrate bath at 250℃ for 20 min | |
| Critical Temperature - Ac1 | 755℃ | |
| Critical Temperature - Ac3 | 810℃ | |
| Critical Temperature - Ar3 | 770℃ | |
| Critical Temperature - Ar1 | 700℃ | |
| Martensite Start (Ms) | 305℃ | |
| Forging | Forging Purpose | Must be forged to avoid longitudinal cracking |
| Post-Forging Treatment | Spheroidizing annealing to relieve stress and homogenize carbides | |
| Hot Working Specifications | Initial forging at 1100℃, final forging at 850℃ |
High Tempering Stability
The elevated silicon and manganese content grants 60Si2MnA exceptional resistance to temper softening, ensuring stable hardness after tempering under demanding thermal conditions
Superior Hardenability
With deeper hardening capability than standard 60Si2Mn grades, this steel achieves uniform martensitic microstructure even in thicker sections, leading to reliably high strength
High Toughness & Plasticity
Designed for optimal balance of toughness and ductility, 60Si2MnA delivers outstanding impact resistance and fatigue life in high‑stress spring and mechanical parts
Outstanding Wear Resistance
Excellent abrasion resistance makes it ideal for grinding machine spindles, railway track clips, precision screws, and other wear-intensive components
Cost‑Effective Hot‑Working Material
Offers excellent hot forging performance with relatively low alloying cost, making it a preferred choice for medium‑section springs and dies across heavy industries
Automotive Suspension Springs
60Si2MnA’s exceptional hardenability, fatigue resistance and elasticity make it ideal for fabrication of coil, leaf and disc springs in heavy‑duty vehicle suspension systems
Railway Fastening Components
Used extensively in rail anchors, clips and anti‑creepers due to its high elasticity and wear resistance, which help curb rail creep under cyclic loads
Wear‑Resistant Precision Parts
Perfect for grinding‑machine spindles, spring chucks, precision screws and roller‑bearing rings, owing to its high surface hardness and stable tempering performance
Cold‑Heading Tools & Dies
Suited for cold‑heading punches, extrusion dies and stamping tools where its toughness and strength significantly extend service life under repetitive forming operations
Q: What is 60Si2MnA steel commonly used for?
A: It is widely used in automotive springs, railway clips, precision mechanical parts, and wear-resistant tools.
Q: What makes 60Si2MnA suitable for heavy-duty applications?
A: Its high hardenability, excellent tempering stability, and superior wear resistance ensure reliable performance under cyclic loads.
Q: Can 60Si2MnA be hot forged?
A: Yes, it offers excellent hot-working properties, making it ideal for forging processes requiring high toughness and uniform hardness.
Q: How does 60Si2MnA improve fatigue life in springs?
A: Its optimized silicon-manganese composition enhances elasticity and reduces decarburization, increasing fatigue resistance.
