P21簡介
USA ASTM Tool Steel And Hard Alloy P21,及該型號鋼材的基本信息、化學元素成分、機械性能、力學性能、熱處理溫度、同等型號參照表等。
基本信息:
分類 |
種類 |
型號 |
標準 |
國家 |
應用 |
Steel Grades |
|
P21 |
ASTM |
USA |
Alloy tool steel |
化學成分信息(mass fraction)(wt.%) of the P21:
元素名稱 |
含量比例值 |
C |
0.18~0.22 |
Si |
0.20~0.40 |
Mn |
0.20~0.40 |
P |
≤0.030 |
S |
≤0.030 |
Cr |
0.50~0.30 |
Ni |
3.90~4.25 |
機械性能信息:
屈服強度Rp0.2(MPa) |
抗拉強度Rm(MPa) |
沖擊率 |
伸長率 |
斷面收縮率 |
熱處理狀態(tài) |
布氏硬度(HBW) |
918 (≥) |
537 (≥) |
43 |
41 |
14 |
Solution and Aging, Annealing, Ausaging, Q+T,etc |
421 |
物理性質(zhì)信息:
溫度 |
彈性模量 |
系數(shù) |
熱導率 |
比熱容量 |
比電阻率 |
密度 |
加權(quán)系數(shù) |
31 |
- |
- |
|
|
0.12 |
- |
|
823 |
129 |
- |
24.3 |
324 |
|
- |
|
596 |
- |
32 |
31.2 |
|
|
211 |
442 |
對照表(同等等級)信息:
型號 |
標準 |
國家 |
應用 |
Q195 |
GBT |
China |
China structural steel and alloy steel |
Q215 |
GBT |
China |
China structural steel and alloy steel |
Q215 B |
|
China |
Engineering and welding |
Q235 |
GBT |
China |
China structural steel and alloy steel |
Q235 B |
|
China |
Engineering and welding |
Q235 C |
|
China |
Engineering and welding |
Q235 D |
|
China |
Engineering and welding |
Q255 A |
|
China |
Engineering and welding |
Q255 B |
|
China |
Engineering and welding |
Q275 |
GBT |
China |
China structural steel and alloy steel |
Q235q C |
|
China |
Bridge structure with steel |
Q235q D |
|
China |
Bridge structure with steel |
Q345q E |
|
China |
Bridge structure with steel |
Q345q C |
|
China |
Bridge structure with steel |
ASTM 1030 |
ASTM |
USA |
General use carbon steel bar |
UNS G10300 |
UNS |
USA |
General use carbon steel bar |
ASTM 1005 |
ASTM |
USA |
General use carbon steel bar |
UNS G10050 |
UNS |
USA |
General use carbon steel bar |
ASTM 1006 |
ASTM |
USA |
General use carbon steel bar |
UNS G10060 |
UNS |
USA |
General use carbon steel bar |