不锈钢其他
产品描述
SUS440C（UNS S44004，DIN 1.4125，中国牌号 102Cr17Mo / 9Cr18Mo）高碳马氏体不锈钢定制加工滚轮配件。淬火回火后硬度达 58–60 HRC，为所有不锈钢中最高，兼具良好的耐腐蚀性，是食品、制药、海洋等潮湿/卫生环境下精密滚柱轴承、导轮、凸轮从动件的优选材料。我司按图纸或样品（支持逆向测绘）CNC 加工 440C 轴承内外圈、导轮、凸轮从动件、滚轮轴/销/套/保持架等，精度 ±0.005mm，滚道磨削 Ra 0.2-0.8，配深冷处理保证尺寸稳定性，100% 尺寸与硬度检验，从钢厂棒料到成品全程炉号可追溯，附 EN 10204 3.1 材质证明、尺寸检验报告及硬度报告。单件起订，适配食品饮料、制药、海洋、纺织印刷、航空、医疗等行业。
尺寸范围
- Part Size (max envelope):Up to 300 mm diameter × 400 mm length
- Bar Stock Diameter:3 – 300 mm (ASTM A276)
- Tolerance:Up to ± 0.005 mm (ground)
- Surface Finish:Ra 0.2 – 0.8 (ground raceways)
- Order Quantity:1 piece to series production
牌号标准
| 标准体系 | 数值 |
|---|---|
| UNS (USA) | S44004 |
| AISI (USA) | 440C |
| DIN / EN (Germany/EU) | 1.4125 / X105CrMo17 |
| JIS (Japan) | SUS440C |
| GB (China) | 102Cr17Mo / 9Cr18Mo |
| BS (UK) | 440C / 110CrMo17 |
| AFNOR (France) | Z100CD17 |
化学成分
| 元素 | 数值 |
|---|---|
| C | 0.95 – 1.20 |
| Cr | 16.0 – 18.0 |
| Mo | 0.40 – 0.80 |
| Mn | ≤ 1.00 |
| Silicon (Si) | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 |
| Iron (Fe) | Balance |
机械性能
| 性能 | 数值 |
|---|---|
| Tensile Strength | ≥ 1970 MPa (hardened) |
| Yield Strength | ≥ 1900 MPa (hardened) |
| Elongation | ≥ 2 % (hardened) |
| Hardness | 58 – 60 HRC (quench + temper) |
| Impact Energy (annealed) | ≥ 16 J (Charpy V) |
| Hardness (annealed) | ≤ 269 HB (for machining) |
物理性能
| 性能 | 单位 | 数值 |
|---|---|---|
| Density | - | 7.80 g/cm³ |
| Melting Range | - | 1370 – 1400 °C |
| Specific Heat Capacity | - | 460 J/(kg·K) |
| Thermal Conductivity | - | 24.2 W/(m·K) |
| Electrical Resistivity | - | 0.60 μΩ·m |
| Elastic Modulus | - | 200 GPa |
| Thermal Expansion (20–100 °C) | - | 10.2 × 10⁻⁶ /K |
| Magnetic | - | Yes (ferromagnetic) |
应用场景
- Bearings
- Food & Beverage
- Pharmaceutical
- Marine
- Textile & Printing
- Aerospace
- Medical / Dental