75简介
China GBT Structure Steel 75,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 |
|
75 |
GBT |
China |
China structural steel and alloy steel |
化学成分信息(mass fraction)(wt.%) of the 75:
元素名称 |
含量比例值 |
C |
0.72-0.80 |
Si |
0.17-0.37 |
Mn |
0.50-0.80 |
P |
0.035 |
S |
0.035 |
Cr |
0.25 |
Ni |
0.3 |
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) |
434 (≥) |
284 (≥) |
32 |
34 |
21 |
Solution and Aging, Annealing, Ausaging, Q+T,etc |
432 |
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 |
21 |
- |
- |
|
|
0.31 |
- |
|
294 |
576 |
- |
14.3 |
222 |
|
- |
|
319 |
- |
12 |
32.2 |
|
|
131 |
224 |
热处理信息:
热处理温度区间 |
Heat treated : 1518°C - 1581°C |
对照表(同等等级)信息:
型号 |
标准 |
国家 |
应用 |
Q275 |
GBT |
China |
China structural steel and alloy steel |
C75W |
|
|
|
1.1750 |
|
|
|
75Cr1 |
DIN |
Germany |
Cold working alloy tool steel |
75CrMoNiW6-7 |
DIN |
Germany |
Cold working alloy tool steel |
SK75 |
JIS |
Japan |
Carbon tool steel |
SS14:2750① |
SS |
Sweden |
Carbide for cutting tools |
SS14:2750① |
SS |
Sweden |
Carbide for cutting tools |
SS14:2752 |
SS |
Sweden |
Carbide for cutting tools |
SS14:2752 |
SS |
Sweden |
Carbide for cutting tools |
S14:2754① |
SS |
Sweden |
Carbide for cutting tools |
S14:2754① |
SS |
Sweden |
Carbide for cutting tools |
SS14:2756① |
SS |
Sweden |
Carbide for cutting tools |
SS14:2756① |
SS |
Sweden |
Carbide for cutting tools |
CT75 |
SS |
Sweden |
Carbide for cutting tools |
CT75 |
SS |
Sweden |
Carbide for cutting tools |
Type440FSe |
UNS |
USA |
Martensitic special steel |
Type440FSe |
UNS |
USA |
Martensitic special steel |
UNS N07500 |
UNS |
USA |
precipitation hardening |
UNS N07750 |
UNS |
USA |
precipitation hardening |