规格参数
Specification
| 直径: Diameter: | ø50-ø100 | mm | 公差: Tolerance: | ±1 | mm |
| 长度: Length: | 160-1500 | mm | 公差: Tolerance: | ±10 | mm |
| 状态: State: | 磨光 Grinding | 车光 Lathing | |||
牌号
Grade :
化学成分
Chemical composition
| 元素符号 Element symbol | 成分% Composition% | 元素符号 Element symbol | 成分% Composition% | |||
| 铬 | Cr | 28.5-30.5 | 硅 | Si | ≤0.95 | |
| 钴 | Co | 余量/Balance | 锰 | Mn | ≤0.75 | |
| 碳 | C | 0.2-0.3 | 铁 | Fe | ≤2.0 | |
| 钨 | B | 6.5-7.5 | 硫 | S | ≤0.04 | |
| 磷 | S | ≤0.04 | ||||
力学性能
Mechanical properties
| 试验温度 Test temp (℃) | 抗拉强度 Tensile strengh (MPa) | 屈服强度 Yield strengh (MPa) | 延伸率 Elogation (%) | 断面收缩率 Reduction of area (%) | 试验温度 Test temp (℃) | 试验应力 Test stress (MPa) | 持续时间 Duration (h) | 延伸率 Elongation (%) |
| 室温 RT | ≥635 | ≥421 | ≥5 | ≥10 | — | — | — | — |
| 650 | ≥415 | ≥195 | ≥10 | ≥12 | 815 | 175 | ≥15 | ≥10 |