Baja SKD7
Product : SKD 7 Hot Work Tool Steel
Kategori : Hot Work Tool Steel
Standard: JIS G 4404
Grades : SKD 7
Equivalent Grade |
| Standard |
Maker/ |
Brand |
|
|
| JIS |
AISI |
DIN |
EN |
Bohler |
Thyssen |
Hitachi |
| SKD7 |
H10 |
1.2365 |
32CrMoV12-28 |
W320 |
2365 |
YEM-K |
Material Baja SKD7
- Ketahanan terhadap temper yang kuat
- Kurang rentan terhadap retak panas tinggi
- Konduktivitas termal yang sangat baik
- Daya tahan suhu tinggi
- Dapat didinginkan dengan air sampai tingkat tertentu
Chemical Composition (% Max)
| C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
V |
Cu |
| 0.28-0.38 |
0.5 |
0.6 |
0.03 |
0.03 |
0.25 |
2.5-3.5 |
2.5-3.0 |
0.4-0.7 |
0.25 |
Referensi: Mill Certificate SKD7
Mechanical Properties
| Properties |
|
SKD7 |
| Soft Annealing °C |
|
740-800 |
| Cooling |
|
Furnace |
| Hardness (HB) |
|
185 |
| Hardening (°C) |
|
1040-1060 |
| Quenching Oil or Hot Bath (°C) |
|
500-550 |
| Machinability (1% CS)(%) |
|
90.0 – 95.0 |
| Poisson's ratio |
|
0.27-0.30 |
| Hardness, Rockwell C |
|
58 |
Referensi: SKD7
Physical Properties
| Properties |
|
SKD7 |
| Coefficient of Thermal Expansion at °C |
10¯⁶ m |
/ (m*K) |
| 20-100 |
|
11.7 |
| 20-200 |
|
12.4 |
| 20-300 |
|
12.7 |
| 20-400 |
|
13.2 |
| 20-500 |
|
13.5 |
| 20-600 |
|
13.8 |
| 20-700 |
|
13.8 |
| Thermal Conductivity at °C |
|
W / (m*K) |
| 20 |
|
32.6 |
| 350 |
|
34.4 |
| 700 |
|
32.4 |
Referensi: SKD7
Applications SKD7
Hot press and mandrels, press die inserts and forging die, remarkable hot metal die casting tools, die-casting moulds for non-ferrous overwhelming metal pressure die-casting.
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