2013年6月17日
涵盖了主题
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
热性能
Introduction
Steels that contain specific amounts of alloying elements other than carbon and common elements such as phosphorus, sulfur, silicon, copper and manganese are known as alloy steels. Alloying elements are added to change mechanical or physical properties. However, carbon content and alloying elements influence the overall characteristics of alloy steels.
以下数据表将概述AISI 8750合金钢。
Chemical Composition
The chemical composition AISI 8750 alloy steels is outlined in the following table.
| 元素 |
内容 （％） |
| Manganese, Mn |
≤0.75-1 |
| 碳，c |
≤0.48-0.53 |
| Nickel, Ni |
≤0.4-0.7 |
| 铬，Cr |
0.4-0.6 |
| 硅，SI |
≤0.2-0.35 |
| Molybdenum, Mo |
0.2-0.3 |
| 磷，p |
≤0.04 |
| 硫，s |
≤0.04 |
Physical Properties
下表显示了AISI 8750合金钢的物理特性。
| 特性 |
公制 |
帝国 |
| 密度 |
7.75 g/cm3 |
0.280 lb/in3 |
Mechanical Properties
下表显示了AISI 8750合金钢的机械性能。
| 特性 |
公制 |
帝国 |
| 抗拉强度 |
1476 MPa |
214100 psi |
| Yield strength (@strain 0.2%) |
1338 MPa |
194100 PSI |
| 弹性模量 |
201-209 GPA |
29200-30300 ksi |
| Bulk modulus |
160-170 GPA |
23200-24700 ksi |
| 剪切模量 |
81-82 GPA |
11700-11900 ksi |
| 泊松比 |
0.27-0.30 |
0.27-030 |
| 休息时伸长 |
12％ |
12％ |
| 硬度，布里尔 |
423 |
423 |
热性能
下表给出了AISI 8750合金钢的热性能
| 特性 |
公制 |
帝国 |
| 热膨胀的共同效率 |
≥14.8µm/m°C |
≥8.22µin/in°F |
| 导热系数 |
≥37.6 W/mK |
≥261btu.in/hrft².°F |