| Customization: | Available |
|---|---|
| Type: | Plates/Blocks/Rounds |
| Standard: | ASTM, AISI, GB, JIS, DIN, BS |
|
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H11 1.2343 SKD6 Round Bar Hot Work Tool Steel
Equivalent Grades:
| Standard | AISI/SAE | W.Nr/DIN | JIS | GB |
| Grade | H11 | 1.2343 | SKD6 | 4Cr5MoSiV |
Typical Chemical Composition (%)
|
C |
Si |
Mn |
Cr |
Mo |
V |
|
0.33-0.42 |
0.80-1.20 |
0.20-0.50 |
4.80-5.50 |
1.10-1.60 |
0.30-0.60 |
Heat Treatment of 1.2343/H11 steel
Annealing: 750 to 800ºC, slow cooling in furnace (10-20ºC/hr), down to 600ºC, cooling in air. Hardness after annealing: max. 230 HB.
Stress relieving: 600 to 650ºC, slow cooling in furnace. Hold in neutral atmosphere for 1 to 2hours.
Hardening: 1000 to 1040ºC, oil/air, hold 15 to 30 minutes. Hardness , 52 to 56 HRC in oil, 50 to 54 HRC in air.
Tempering: 560 to 580ºC. Slowly heating to tempering temperature right after hardening. Recommended to temper at least twice. The second tempering temperature shall be approx. 30ºC lower than the first tempering.
|
Tempering ºC |
300 |
400 |
500 |
580 |
|
HRC |
53 |
53 |
54 |
50 |
* Hardening temperature: 1020ºC, specimen size: dia50mm
Applications:
Heavy duty hot work tools and dies: mandrels, dies, and containers for metal tube and rod extrusion; hot extrusion equipment; tools and dies for the manufacture of hollow bodies, screws, rivets, nuts, and bolts. Die casting equipment, forming dies, die inserts, hot shear blades, and plastic moulding dies.
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