Обзор
CgoodSteel’s automotive spring steel strips are engineered to deliver exceptional elasticity, fatigue resistance, and durability in demanding vehicle applications. Manufactured under strict thermal and mechanical controls, our strips ensure reliable performance in suspension systems, пружины сцепления, seat mechanisms, and other critical elastic components.
We support global automotive manufacturers and Tier‑1 suppliers with customized material solutions that meet international standards and OEM specifications.
Ключевые особенности
- High Elastic Limit & Excellent Fatigue Resistance – withstands repeated loading and unloading
- Uniform Hardness & Dimensional Precision – consistent performance across batches
- Good Formability & Weldability – suitable for complex forming and joining processes
- Controlled Decarburization & Качество поверхности – optimized for subsequent heat treatment and coating
- Available in Annealed or Hardened & Tempered Conditions – ready for fabrication or direct use
Material Grades & Технические характеристики
| Grade Standard | Typical Grades | Диапазон твердости (СПЧ) | Толщина (мм) | Ширина (мм) |
|---|---|---|---|---|
| ОТ / В | СК67, СК75, СК80 | 30–55 (ЧАС&Т) / ≤180 HV (Отожженный) | 0.10 – 5.5 | 3 – 550 |
| АИСИ / SAE | 1065, 1074, 1075 | 30–55 (ЧАС&Т) / ≤180 HV (Отожженный) | 0.10 – 5.5 | 3 – 550 |
| ОН | SUP3, СУП6, SUP7 | 30–55 (ЧАС&Т) / ≤180 HV (Отожженный) | 0.10 – 5.5 | 3 – 550 |
| Alloy Grades | 50КрВ4, 60Si2Mn, 51КрВ4 | 35–55 (ЧАС&Т) | 0.20 – 5.0 | 10 – 500 |
Common Applications in Automotive Industry
- Suspension Systems: Coil springs, leaf springs, stabilizer bars
- Transmission & Clutch: Clutch diaphragm springs, shift fork springs
- Seating & Interior: Seat adjustment springs, lumbar support springs
- Engine & Valve Train: Valve springs, fuel injection springs
- Braking Systems: Parking brake springs, brake pad retention clips
- Electrical & Connectors: Battery contact springs, connector springs
Производственный процесс
- Material Selection – Prime steel coils sourced from ISO‑certified mills
- Холодная прокатка – Precision thickness reduction and width control
- Термическая обработка –
- Отжиг: Spheroidize or bright annealing for formability
- закалка & Закалка: Oil or molten salt quenching followed by tempering for strength and toughness
- Поверхность & Edge Treatment – Polishing, rounding, разрезание, decambering
- Quality Inspection – Chemistry analysis, hardness testing, flatness check, tensile test, metallographic examination
Технические преимущества
| Property | CgoodSteel Standard | Industry Typical |
|---|---|---|
| Flatness Tolerance | ≤0.2% (Class P3) | ≤0.3–0.4% |
| Hardness Deviation | ±2 HRC | ±3–4 HRC |
| Decarburization Depth | ≤1% of thickness | ≤1.5% of thickness |
| Surface Roughness (Ra) | ≤0.8 µm (полированный) | ≤1.2 µm |
| Edge Condition | Burr‑free, rounded or square as specified | Light burr acceptable |
Ordering & Кастомизация
We support tailored solutions based on your component design and production process:
- Custom hardness profiles (gradient or uniform)
- Special surface finishes – bright, синий, желтый, полированный, coated
- Precision slitting & edge preparation – round, квадрат, щель, deburred
- Pre‑cut blanks or continuous coils
- Упаковка – oil‑paper interleaving, waterproof film, деревянные поддоны
Минимальное количество заказа: Гибкий, from pilot batches to full‑scale supply.
Гарантия качества
- Raw material traceability
- In‑house lab testing (Rockwell/Brinell hardness tester, tensile machine, спектрометр, metallurgical microscope)
- Compliance with DIN, В, АИСИ, ОН, GB and customer‑specific standards
- Mill test certificates provided with each shipment
Why Choose CgoodSteel?
✅Over 20 years of spring steel specialization
✅Direct manufacturer with full process control
✅Fast response & engineering support
✅Competitive pricing with consistent quality
✅Just‑in‑time delivery capability
Contact Us for Quotes & Technical Data Sheets
Have a specific application or drawing?
Send us your requirements for a tailored material recommendation and sample availability.
