Shape: round, flat, square.
Size Range:
| |
Diameter(mm) |
Thickness (mm) |
Width (mm) |
Length(mm) |
| Round |
50-420 |
- |
- |
2000-5800 |
| Square |
50-420 |
- |
- |
2000-5800 |
| Flat |
- |
20-50 |
80-600 |
2000-5800 |
Delivery Condition:
Annealed, Quenched + Tempered
Surface Condition:
Black, Grinded, Peeled,Rough turned, Polished
Features:
1.Competitive price
2.immediate delivery
3.Premium quality
4.Reliable service
5.MOQ: 1 ton
| Packing details |
In seaworthy packing, as your requirement. |
| Delivery details |
within 30-50 days |
Chemical Compositions:
| C |
Mn |
P |
S |
Si |
Cr |
V |
W |
Mo |
| 0.55-0.70 |
0.15-0.40 |
0.030max |
0.030max |
0.20-0.45 |
3.75-4.50 |
1.75-2.20 |
5.50-6.75 |
4.50-5.50 |
Heat treatment
Hardness :Annealed(+A) max: 235 BHN
H42 tool steel when heat-treatment the preheat Temperature need reach 788°C, and the temperature may be ± 14 °C .
H42 tool steel when austenitizing ,should keep 5-15 minutes long. If is the salt bath ,temperature should keep in the 1191 °C , and shall be ± 5.6 °C. Or is the controlled atmosphere furnaces , temperature should keep in the 1204 °C , and shall be ± 5.6 °C.
Quenching: H42 tool steel Hardening quenching using air cooling, and it's hardness min is 60 RC.
Tempering: H42 tool steel general tempering temperature is 552°C. Double tempering of Double tempering of H42 tool steel is recommended.
Application:
H42 tool steel like high speed steel with high hardness and high intensity, and it has a higher toughness and fatigue strength than high speed steel. It is commonly used to make cold extrusion dies and stretching die, it has a longer service life.
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