1. Overview
50CRV4, known internationally as AISI 6150 or SUP10, is a chromium-vanadium alloy spring steel that combines high strength, 弹性, and toughness.
It is particularly suitable for 汽车悬架弹簧, clutches, 和高应力机械部件 where resistance to fatigue and shock loading is critical.
Cgood Steel produces 50CrV4 alloy steel strips 在 hardened and tempered 或者 cold-rolled annealed conditions, ensuring precise control of hardness, 表面光洁度, and dimensional tolerances.
2. Chemical Composition and Equivalent Grades
| 标准 | Equivalent Grades | C (%) | 锰 (%) | 和 (%) | 铬 (%) | V (%) | P max | S max |
|---|---|---|---|---|---|---|---|---|
| 从 | 50CRV4 | 0.47鈥?.55 | 0.70鈥?.10 | 0.15鈥?.40 | 0.90鈥?.20 | 0.10鈥?.25 | 鈮?.035 | 鈮?.035 |
| 美国钢铁协会 | 6150 | 鈥?/td> | 鈥?/td> | 鈥?/td> | 鈥?/td> | 鈥?/td> | 鈥?/td> | 鈥?/td> |
| 他 | SUP10 | 鈥?/td> | 鈥?/td> | 鈥?/td> | 鈥?/td> | 鈥?/td> | 鈥?/td> | 鈥?/td> |
铬提高淬透性和耐磨性, while vanadium refines the grain structure, improving strength and fatigue performance.
3. Production and Heat Treatment Process
50CrV4 strips are produced through a multi-stage precision rolling and thermal treatment process:
- Hot Rolled Coils 鈥?sourced from ISO-certified steel mills.
- Acid Pickling 鈥?removal of oxidation and surface impurities.
- Cold Rolling 鈥?reduces thickness and enhances dimensional accuracy.
- Annealing (optional) 鈥?improves ductility for cold forming.
- Hardening and Tempering 鈥?precise heat treatment in controlled atmosphere furnaces.
- Hardening: Heated above the austenitizing temperature (approx. 850掳C鈥?80掳C) 并淬火.
- 回火: Reheated to 400鈥?00掳C to achieve desired balance between hardness and toughness.
This sequence provides a fine-grained structure with uniform hardness and improved resilience under repeated stress.
4. 机械性能
| Condition | 硬度 | 抗拉强度 | Elastic Limit | Surface Finish | Edge Options |
|---|---|---|---|---|---|
| 退火 | 鈮?00 高压 | 600鈥?00 N/mm虏 | Medium | 明亮的 / 抛光 | Mill / 狭缝 |
| 硬化 & 历练 | 40鈥?2 HRC | 1400鈥?800 N/mm虏 | High | Blue / Yellow / 抛光 | 正方形 / 圆形 |
厚度范围: 0.1鈥?.0 毫米
Width Range: 10鈥?00 毫米
Edge Finish: 狭缝, square, or rounded according to customer requirements.
5. Key Features of 50CrV4 Alloy Steel Strip
- Excellent strength-to-weight ratio 和 high fatigue resistance
- Stable spring properties under cyclic stress
- Superior 耐磨性 和 shock absorption
- Consistent heat treatment response 和可加工性
- Uniform flatness achieved through precision levelling and tension control
6. 应用领域
50CrV4 alloy steel strips are widely used in industries requiring durability under dynamic loads 和 controlled elasticity:
- Automotive Components
- Leaf springs, clutch plates, 气门弹簧, and safety parts
- Industrial Machinery
- Springs, discs, and precision washers
- Construction Tools
- Trowels, 刮刀, and blades with high flexibility requirements
- Power Transmission
- Flexible couplings and dampening elements
Its combination of strength and toughness also makes it suitable for cold-forming operations prior to hardening and tempering.
7. Tolerances and Quality Control
Cgood Steel follows strict tolerance classes according to DIN/EN standards:
- 厚度公差: 卤0.015鈥?.070 毫米
- 宽度公差: 卤0.20鈥?.80 毫米
- Straightness deviation: within R1鈥揜4 class
- Flatness tolerance: 鈮?.1鈥?.3% of strip width
All coils are tested for:
- 化学成分 (spectrometer analysis)
- Hardness and tensile strength (Vickers, Rockwell, and Brinell)
- Surface quality and microstructure
8. Packaging and Delivery
Each 50CrV4 coil is lightly oiled 和 用防锈纸和塑料薄膜包裹, then placed on wooden pallets or into 20ft sea-worthy containers.
Customized packing and labeling available upon request.
9. 关于西古德钢铁
Guangzhou Jiaxiao Material Technology Co., 有限公司.
is a trusted manufacturer and exporter of high carbon, alloy, and stainless steel strips in both 退火的 和 硬化的 & 锻炼过的 forms.
With over 20 years of experience and advanced facilities for cold rolling, annealing, 淬火, and tempering, Cgood Steel provides tailored steel solutions for automotive, spring, tool, and hardware industries.
