A7簡(jiǎn)介
USA ASTM Tool Steel And Hard Alloy A7,及該型號(hào)鋼材的基本信息、化學(xué)元素成分、機(jī)械性能、力學(xué)性能、熱處理溫度、同等型號(hào)參照表等。
基本信息:
分類 |
種類 |
型號(hào) |
標(biāo)準(zhǔn) |
國(guó)家 |
應(yīng)用 |
Steel Grades |
|
A7 |
ASTM |
USA |
Alloy tool steel |
化學(xué)成分信息(mass fraction)(wt.%) of the A7:
元素名稱 |
含量比例值 |
C |
2.00~2.85 |
Si |
0.10~0.50 |
Mn |
0.20~0.80 |
P |
≤0.030 |
S |
≤0.030 |
Cr |
5.00~5.75 |
Mo |
0.90~1.40 |
機(jī)械性能信息:
屈服強(qiáng)度Rp0.2(MPa) |
抗拉強(qiáng)度Rm(MPa) |
沖擊率 |
伸長(zhǎng)率 |
斷面收縮率 |
熱處理狀態(tài) |
布氏硬度(HBW) |
519 (≥) |
714 (≥) |
41 |
34 |
21 |
Solution and Aging, Annealing, Ausaging, Q+T,etc |
344 |
物理性質(zhì)信息:
溫度 |
彈性模量 |
系數(shù) |
熱導(dǎo)率 |
比熱容量 |
比電阻率 |
密度 |
加權(quán)系數(shù) |
22 |
- |
- |
|
|
0.13 |
- |
|
525 |
254 |
- |
34.3 |
333 |
|
- |
|
721 |
- |
32 |
34.2 |
|
|
114 |
442 |
熱處理信息:
熱處理溫度區(qū)間 |
Heat treated : 1656°C - 1687°C |
對(duì)照表(同等等級(jí))信息:
型號(hào) |
標(biāo)準(zhǔn) |
國(guó)家 |
應(yīng)用 |
A7 |
ASTM |
USA |
Alloy tool steel |
CA70T |
AS |
Australia |
Australia Structural steel |
A70204 |
GBT |
China |
China structural steel and alloy steel |
A70284 |
GBT |
China |
China structural steel and alloy steel |
A70354 |
GBT |
China |
China structural steel and alloy steel |
A71145 |
GBT |
China |
China structural steel and alloy steel |
A71204 |
GBT |
China |
China structural steel and alloy steel |
A71354 |
GBT |
China |
China structural steel and alloy steel |
A74204 |
GBT |
China |
China structural steel and alloy steel |
A73154 |
GBT |
China |
China structural steel and alloy steel |
A73204 |
GBT |
China |
China structural steel and alloy steel |