2a簡(jiǎn)介
Romania STAS/SR Structure Steel 2a，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 |
|
2a |
STAS/SR |
Romania |
Structural steel |
化學(xué)成分信息(mass fraction)(wt.%) of the 2a：
| 元素名稱 |
含量比例值 |
|---|
| C |
0.16-0.23 |
| Si |
0.15-0.35 |
| Mn |
1.20-1.60 |
| P |
0.035 |
| S |
0.035 |
| Cr |
0.30 |
| Ni |
Max 0.30 |
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） |
|---|
| 737 (≥) |
833 (≥) |
14 |
41 |
41 |
Solution and Aging, Annealing, Ausaging, Q+T,etc |
141 |
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) |
|---|
| 12 |
- |
- |
|
|
0.21 |
- |
|
| 242 |
686 |
- |
34.3 |
241 |
|
- |
|
| 552 |
- |
33 |
31.2 |
|
|
314 |
333 |
熱處理信息：
| 熱處理溫度區(qū)間 |
|---|
| Heat treated : 1175°C - 1458°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 |
|---|
| 7Mn15Cr2A13V2WMo |
|
China |
Alloy tool steel - Without magnetic steel mold |
| W6Mo5Cr4V2Al |
|
China |
High-speed tool steel |
| T12A |
JIS |
Japan |
Carbide for cutting tools |
| T12A |
JIS |
Japan |
Carbide for cutting tools |
| BD2A |
|
UK |
Carbide for cutting tools |
| BD2A |
|
UK |
Carbide for cutting tools |
| BT1 |
|
UK |
Carbide for cutting tools |
| BT1 |
|
UK |
Carbide for cutting tools |
| у12A-1 |
ГОСТ |
Russia |
Carbide for cutting tools |
| у12A-1 |
ГОСТ |
Russia |
Carbide for cutting tools |
| у12A-2 |
ГОСТ |
Russia |
Carbide for cutting tools |
| у12A-2 |
ГОСТ |
Russia |
Carbide for cutting tools |
| у12A-3 |
ГОСТ |
Russia |
Carbide for cutting tools |
| у12A-3 |
ГОСТ |
Russia |
Carbide for cutting tools |
| SUS304N2A |
JIS |
Japan |
martensitic stainless steel |
| Z2CND25-22Az |
AFNOR |
France |
Stainless steel palte & Steel Strip |
| Z3CND17-12Az |
AFNOR |
France |
Stainless Steel Plate & Steel Strip |
| Z2CND25-22Az |
AFNOR |
France |
Stainless steel palte & Steel Strip |
| Z20CN21-12Az |
AFNOR |
France |
Steel Exhaust Valves |
| Z50CMNNb21-09-02Az |
AFNOR |
France |
Steel Exhaust Valves |
