2012年9月26日
Topics Covered
介绍
化学成分
物理特性
机械性能
Thermal Properties
其他名称
介绍
Alloy steels comprise a variety of steels whose compositions exceed the limitations of C, Mo, Cr, Va, Mn, Ni, Si, and B, which have been fixed for carbon steels. These steels are more responsive to mechanical and heat treatments than carbon steels.
The following datasheet will provide details about AISI 8620H alloy steel.
化学成分
The following table shows the chemical composition of AISI 8620H alloy steel.
| Element |
Content (%) |
| 铁，铁 |
96.745-98.22 |
| 明尼苏达州锰 |
0.600-0.950 |
| 镍，尼 |
0.350-0.750 |
| Chromium, Cr |
0.350-0.650 |
| Carbon, C |
0.180-0.230 |
| Silicon, Si |
0.150-0.350 |
| Molybdenum，密苏里州 |
0.150-0.250 |
| Sulfur, S |
0.0400 |
| 磷，p |
0.0350 |
物理特性
下表概述了AISI 8620H合金钢的物理性能。
| Properties |
Metric |
Imperial |
| Density |
7.85 g/cm3 |
0.284 lb/in³ |
机械性能
The mechanical properties of annealed AISI 8620H alloy steel are tabulated below.
| Properties |
Metric |
Imperial |
| Tensile strength |
530 MPa |
76900 psi |
| Yield strength |
385 MPa |
55800 psi |
| Elastic modulus |
190-210 GPa |
27557-30458 ksi |
| Bulk modulus (typical for steel) |
140 GPA |
20300 ksi |
| Shear modulus (typical for steel) |
80 GPa |
11600 ksi |
| Poisson’s ratio |
0.27-0.30 |
0.27-0.30 |
| Elongation at break (in 50 mm) |
31 |
31 |
| 减少面积 |
31 |
31 |
| Izod Impact |
115 J |
84.8 ft.lb |
| Hardness, Brinell |
149 |
149 |
| 硬度，knoop（从Brinell硬度转换） |
169 |
169 |
| Hardness, Rockwell B (converted from Brinell hardness) |
80 |
80 |
| 硬度，维克（Vickers）（从Brinell硬度转换） |
155 |
155 |
| 可加工性（基于AISI 1212钢的100个可加工性，退火和冷绘制） |
65 |
65 |
Thermal Properties
AISI 8620H合金钢的热性能在下面列出。
| Properties |
Metric |
Imperial |
| Thermal conductivity |
46.6 W/mK |
323 btu in/hr.ft²。°F |
其他名称
Equivalent materials to AISI 8620H alloy steel are listed below:
- ASTM A304
- SAE J1268
- AFNOR 20 NCD 2
- AFNOR 22 NCD 2
- DIN 1.6523
- UNI 20 NICRMO 2
- JIS SNCM 21
- JIS SNCM 21H
- B.S.805 H 20
- B.S.805 m 20