Similar Grades:
UNS T41904
Shape:
Round, Flat, Square.
Size Range:
| |
Diameter(mm) |
Thickness (mm) |
Width (mm) |
Length(mm) |
| Round |
20-480 |
- |
- |
2000-5800 |
| Square |
20-480 |
- |
- |
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
5.MOQ: 1 Ton
| Packing details |
In seaworthy packing, as your requirement. |
| Delivery details |
within 30-50 days |
Chemical Composition(%)
| C |
Mn |
P |
S |
Si |
Cr |
V |
| 0.50-0.65 |
0.60-0.95 |
0.030max |
0.030max |
1.75-2.25 |
0.10-0.50 |
0.15-0.35 |
Heat treatment
Hardness :Annealed(+A) max: 229 BHN
S4 tool steel when heat-treatment the preheat Temperature need reach 677°C, and the temperature may be ± 14 °C .
S4 tool steel when austenitizing ,should keep 5-15 minutes long. If is the salt bath ,temperature should keep in the 885°C and shall be ± 5.6 °C. Or is the controlled atmosphere furnaces, temperature should keep in the 899°C, and shall be ± 5.6 °C.
Quenching: S4 tool steel Hardening quenching using oil cooling, and it's hardness min is 58RC.
Tempering: S4 tool steel general tempering temperature is 204°C. Double tempering of Double tempering of S4 tool steel is recommended.
Ultrasonic Test:Material will be ultrasonically tested at appropriate stages of the manufacture to ensure the quality, as agreed between seller and purchaser.
Application:
S4 tool steel are frequently used in cold work applications requiring toughness at relatively high hardness
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