A2简介
USA ASTM Tool Steel And Hard Alloy A2，及该型号钢材的基本信息、化学元素成分、机械性能、力学性能、热处理温度、同等型号参照表等。
基本信息：
| 分类 |
种类 |
型号 |
标准 |
国家 |
应用 |
|---|
| Steel Grades |
|
A2 |
ASTM |
USA |
Alloy tool steel |
化学成分信息(mass fraction)(wt.%) of the A2：
| 元素名称 |
含量比例值 |
|---|
| C |
0.95～1.05 |
| Si |
0.10～0.50 |
| Mn |
0.40～1.00 |
| P |
≤0.030 |
| S |
≤0.030 |
| Cr |
4.75～5.50 |
| Mo |
0.90～1.40 |
机械性能信息：
| 屈服强度Rp0.2（MPa） |
抗拉强度Rm（MPa） |
冲击率 |
伸长率 |
断面收缩率 |
热处理状态 |
布氏硬度（HBW） |
|---|
| 153 (≥) |
866 (≥) |
33 |
34 |
34 |
Solution and Aging, Annealing, Ausaging, Q+T,etc |
114 |
物理性质信息：
| 温度 |
弹性模量 |
系数 |
热导率 |
比热容量 |
比电阻率 |
密度 |
加权系数 |
|---|
| 34 |
- |
- |
|
|
0.21 |
- |
|
| 595 |
449 |
- |
33.3 |
123 |
|
- |
|
| 139 |
- |
14 |
12.2 |
|
|
421 |
334 |
热处理信息：
| 热处理温度区间 |
|---|
| Heat treated : 1834°C - 1283°C |
对照表（同等等级）信息：
| 型号 |
标准 |
国家 |
应用 |
|---|
| A2 |
ASTM |
USA |
Alloy tool steel |
| CPM 10V |
AISI |
USA |
Powder metallurgy tool steelCold work tool steel |
| BA2 |
|
UK |
Carbide for cutting tools |
| BA2 |
|
UK |
Carbide for cutting tools |
| BA2 |
|
UK |
Carbide for cutting tools |
| BA2 |
|
UK |
Carbide for cutting tools |
| BA2 |
|
UK |
Carbide for cutting tools |
| BA2 |
|
UK |
Carbide for cutting tools |
| ASTM A2Q |
AISI |
USA |
|
| A21 |
STAS/SR |
Romania |
Structural steel |
| HA200 |
AS |
Australia |
Australia Structural steel |
| CA2 |
AS |
Australia |
Australia Structural steel |
| HA250 |
AS |
Australia |
Australia Structural steel |
| CA220 |
AS |
Australia |
Australia Structural steel |
| CA260 |
AS |
Australia |
Australia Structural steel |
| VAT A286 |
ABNT |
Brazil |
Brazil Stainless steel |
| A20204 |
GBT |
China |
China structural steel and alloy steel |
| A20374 |
GBT |
China |
China structural steel and alloy steel |
| A20404 |
GBT |
China |
China structural steel and alloy steel |
| A20378 |
GBT |
China |
China structural steel and alloy steel |
