- Release time：Update:2015-06-18 14:06:08
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1. Summary
Representative martensitic steel, high-strength steel, excellent workability.
2, Features
1) High strength;
2) Excellent machinability
3) After heat treatment hardens;
4) magnetic;
5) is not suitable for harsh corrosive environments.
3. Scope
Generally blade, mechanical parts, one type of cutlery (spoon, fork, knife, etc.).
4, the chemical composition (JIS G 4305-2005)
(wt%)
(wt%)
|
Chemical composition |
C |
Si |
Mn |
P |
S |
Cr |
|
Standard |
£0.15 |
£1.00 |
£1.00 |
£0.04 |
£0.030 |
11.5~13.5 |
|
General |
0.045 |
0.45 |
0.50 |
0.020 |
0.001 |
13. 0 |
5、performance（JIS G 4305-2005）
|
Distinguish |
Mechanical Properties |
备注 |
|||
|
Ys (Mpa) |
Ts (Mpa) |
El (%) |
Hv |
||
|
Standard |
≥ 205 |
≥ 440 |
≥ 20 |
≤ 210 |
NO.2B/1.2t |
|
General |
260 |
470 |
30 |
145 |
|
6、the physical properties of
|
Density (g/cm3) |
Magnetic
|
Specific heat250C (J/kg.0C) |
Thermal conductivity 1000C(W/m. 0C) |
Thermal expansion coefficient 20~1000C (10-6/0C) |
|
7.70 |
Have |
460 |
24.9 |
9.9 |
|
Density (g/cm3) |
Magnetic |
Specific heat250C (J/kg.0C) |
Thermal conductivity 1000C(W/m.0C) |
Thermal expansion coefficient 20~1000C (10-6/0C) |
|
7.70 |
Have |
460 |
23.9 |
9.3 |
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