Oil-Tempered Chromium–Silicon Alloy Steel Wire for Mechanical Springs
JIS G 3560 Oil Tempered Wire SWOSC-B Specialist｜Nancheng Enterprise – Import, Wholesale, and High-End Spring Materials We specialize in supplying oil tempered wire required for high-end industrial springs, strictly complying with the JIS G 3560 international
standard. Our primary oil tempered wire products are made of silicon–chromium alloy steel (Si-Cr alloy steel) and processed through precise oil quenching and tempering heat treatment, giving the wire exceptional toughness that surpasses ordinary carbon steel
wire. For application scenarios involving high stress and high-frequency vibration, such as automotive and motorcycle suspension systems, clutches, and heavy machinery, the SWOSC-B oil tempered wire imported by Nancheng offers outstanding fatigue life and
resistance to high-temperature softening. Oil tempered wire is available with a wide diameter range from Ø0.5 mm to Ø16.0 mm, and Nancheng is one of the few import wholesalers in Taiwan capable of stably supplying large-diameter oil tempered wire.
FEATURES
Oil Tempered Spring Wire Features｜High Fatigue Alloy Steel Wire Supplier
NAN CHENG supplies Oil Tempered Wire manufactured according to JIS G 3560 standards. Produced from SWOSC-B silicon–chromium alloy steel and processed through oil quenching and tempering, this wire provides excellent fatigue resistance, heat resistance and elastic recovery for high-load spring applications.
- Excellent fatigue resistance: Suitable for mechanical springs subjected to repeated cyclic loading.
- High heat resistance: Maintains stable spring performance in operating environments of approximately 150°C–200°C.
- Superior elastic recovery: Reduced risk of spring setting and permanent deformation.
- Pre-tempered processing: Simplifies downstream spring manufacturing and reduces deformation risk during production.
- Strict surface quality control: Eddy current testing reduces the risk of cracks and decarburization defects.
Supply Capability:
✔ Diameter range: Ø0.5 mm – Ø16.0 mm
✔ Large-diameter wire supply available
✔ Coil, carrier spool and custom cut-to-length support
✔ Stable inventory for industrial and automotive applications
✔ Fast delivery from Taiwan warehouses
✔ Diameter range: Ø0.5 mm – Ø16.0 mm
✔ Large-diameter wire supply available
✔ Coil, carrier spool and custom cut-to-length support
✔ Stable inventory for industrial and automotive applications
✔ Fast delivery from Taiwan warehouses
Please provide your spring application, wire diameter and processing requirements for material recommendations and quotation support.
Specifications
Oil Tempered Wire Specifications｜JIS G3560 Standard
| Item | Specification Details |
| International Standard | JIS G 3560 |
| Steel Grade | SWOSC-B (Si-Cr alloy steel) |
| Wire Diameter | Ø0.50 mm – Ø16.0 mm |
| Heat Treatment | Oil quenched and tempered |
| Heat Resistance | Suitable for 150°C–200°C operating environments |
| Supply Form | Coil, carrier spool, custom cut-to-length |
Application Recommendation:
Suitable for suspension springs, stabilizer bars, clutch springs and heavy-duty industrial spring applications requiring high fatigue life and heat resistance.
Suitable for suspension springs, stabilizer bars, clutch springs and heavy-duty industrial spring applications requiring high fatigue life and heat resistance.
Quality Advantages:
✔ Tempered martensite structure
✔ High fatigue life
✔ Stable processing performance for spring manufacturers
✔ Tempered martensite structure
✔ High fatigue life
✔ Stable processing performance for spring manufacturers
Applications
Oil Tempered Wire Applications｜Heavy-Duty and High Fatigue Spring Components
Oil Tempered Wire is widely used in heavy-load mechanical spring applications requiring high fatigue resistance, heat resistance and stable spring performance.
- Automotive and motorcycle industry:
Suspension springs, valve springs, clutch springs and stabilizer bars. - Heavy machinery:
Crusher springs, vibrating screen springs and industrial shock absorber components. - Precision industry:
Die springs and high-cycle fatigue test springs. - Industrial equipment:
Heavy-duty spring systems requiring long-term stable operation.
Oil Tempered Wire FAQ
Q: What is SWOSC-B oil tempered wire?
A: SWOSC-B is a silicon–chromium alloy spring wire with high fatigue resistance and heat resistance for heavy-duty spring applications.
A: SWOSC-B is a silicon–chromium alloy spring wire with high fatigue resistance and heat resistance for heavy-duty spring applications.
Q: What is the advantage of oil tempered spring wire?
A: It provides stable elasticity, high fatigue life and simplified downstream spring manufacturing processes.
A: It provides stable elasticity, high fatigue life and simplified downstream spring manufacturing processes.
Q: Is this wire suitable for suspension springs?
A: Yes. Oil tempered wire is commonly used for suspension springs, stabilizer bars and heavy-duty industrial spring systems.
A: Yes. Oil tempered wire is commonly used for suspension springs, stabilizer bars and heavy-duty industrial spring systems.
Q: Can NAN CHENG provide large-diameter wire?
A: Yes. NAN CHENG supports stable supply of large-diameter oil tempered wire up to Ø16.0 mm.
A: Yes. NAN CHENG supports stable supply of large-diameter oil tempered wire up to Ø16.0 mm.
Q: How can I request a quotation?
A: Please provide spring application, diameter and quantity requirements for quotation support.
A: Please provide spring application, diameter and quantity requirements for quotation support.