U4簡介
Australia AS Structure Steel U4，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 |
|
U4 |
AS |
Australia |
Australia Structural steel |
化學成分信息(mass fraction)(wt.%) of the U4：
| 元素名稱 |
含量比例值 |
|---|
| C |
0.25-0.38 |
| Si |
Max 0.40 |
| Mn |
0.40-1.00 |
| P |
0.04 |
| S |
0.040 |
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 |
布氏硬度（HBW） |
|---|
| 241 (≥) |
589 (≥) |
12 |
33 |
32 |
Solution and Aging, Annealing, Ausaging, Q+T,etc |
134 |
物理性質信息：
| 溫度 |
彈性模量 |
系數 |
熱導率 |
比熱容量 |
比電阻率 |
密度 |
加權系數 |
|---|
| 23 |
- |
- |
|
|
0.21 |
- |
|
| 641 |
197 |
- |
33.3 |
232 |
|
- |
|
| 196 |
- |
14 |
33.2 |
|
|
232 |
224 |
熱處理信息：
| 熱處理溫度區間 |
|---|
| Heat treated : 1838°C - 1587°C |
對照表（同等等級）信息：
| 型號 |
標準 |
國家 |
應用 |
|---|
| SU41 |
SS |
Sweden |
Carbide for cutting tools |
| SU41 |
SS |
Sweden |
Carbide for cutting tools |
| U4 |
AS |
Australia |
Australia Structural steel |
| U40048 |
GBT |
China |
China structural steel and alloy steel |
| U40088 |
GBT |
China |
China structural steel and alloy steel |
| U40108 |
GBT |
China |
China structural steel and alloy steel |
| U40158 |
GBT |
China |
China structural steel and alloy steel |
| U40152 |
GBT |
China |
China structural steel and alloy steel |
| U40208 |
GBT |
China |
China structural steel and alloy steel |
| U40202 |
GBT |
China |
China structural steel and alloy steel |
| U41188 |
GBT |
China |
China structural steel and alloy steel |
| U41228 |
GBT |
China |
China structural steel and alloy steel |
| U40252 |
GBT |
China |
China structural steel and alloy steel |
| U40302 |
GBT |
China |
China structural steel and alloy steel |
| U40352 |
GBT |
China |
China structural steel and alloy steel |
| U40402 |
GBT |
China |
China structural steel and alloy steel |
| U40452 |
GBT |
China |
China structural steel and alloy steel |
| U41252 |
GBT |
China |
China structural steel and alloy steel |
| U41302 |
GBT |
China |
China structural steel and alloy steel |
| U41352 |
GBT |
China |
China structural steel and alloy steel |
