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 |
Steel-making Condition: EF, EF/EAF+LF+VD, EF/EAF+ESR
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
| Packing details |
In seaworthy packing, as your requirement. |
| Delivery details |
within 30-50 days |
Chemical Composition:
| C |
Mn |
P |
S |
Si |
Cr |
V |
Mo |
| 0.45-0.55 |
0.20-0.90 |
0.030max |
0.030max |
0.20-1.00 |
3.00-3.50 |
0.35max |
1.30-1.80 |
Mechanical Properties:
Ultrasonic Test:Material will be ultrasonically tested at appropriate stages of the manufacture to ensure the quality, as agreed between seller and purchaser.
Heat treatment:
Hardness :Annealed(+A) max: 229 BHN
Tool steel S7 when heat-treatment the preheat Temperature need reach 677°C, and the temperature may be ± 14 °C .
Tool steel S7 when austenitizing ,should keep 5-15 minutes long. If is the salt bath ,temperature should keep in the 941°C and shall be ± 5.6 °C. Or is the controlled atmosphere furnaces, temperature should keep in the 954°C, and shall be ± 5.6 °C.
Quenching: Tool steel S7 Hardening quenching using ail cooling, and it's hardness min is 56RC.
Tempering: Tool steel S7 general tempering temperature is 204°C. Double tempering of Double tempering of tool steel S7 is recommended.
Application:
Heavy Impact Punches
Warm Forging/Heading Dies
Plastic Injection Molds
Shear Blades
Product Description:
S7 tool steel is a shock-resistant air hardening tool steel, designed for high impact resistance at relatively high hardness. It offers toughness to withstand chipping and breaking, combined with high attainable hardness and good wear resistance.
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