| After-sales Service: | 180 Days |
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| Warranty: | 180 Days |
| Type: | Alloy Steel Bar |
| Standard: | GB |
| Technique: | Hot Rolled |
| Application: | Structural Steel Bar |
| Samples: |
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| Customization: |
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1.2379 is a tool steel with a carbon content of 1.5% and chromium content of 11.5% and a hardness of up to 60HRC after heat treatment. It's a semi-stainless steel. 1.2379 steel has good wear resistance and moderate toughness. The disadvantage is that the corrosion resistance is slightly insufficient. It is a kind of practical steel. 1.2379 steel is high wear resistance, micro deformation cold working die steel, wind hard tool steel. 1.2379 steel can be used to manufacture cold working die steel with large section, complex shape, impact resistance and wear resistance, such as silicon steel sheet die, cold cutting shear, edge cutting die, etc.
1.2379 Tool steel
1.2379 Toughening chemical composition %
C1.45-1.70
Silicon 0.10-0.60
Manganese 0.20-0.60
Maximum phosphorus is 0.03
Sulfur Max. 0.03
Chrome 11.0-12.0
Molybdenum 0.70-1.00
Vanadium 0.70-1.00
1.2379 steel The high carbon and high chromium cold working die steel widely used in the world is a kind of Letenite steel with high hardenability, hardenability and high wear resistance. Good oxidation resistance at high temperature, good rust resistance after quenching and polishing, and small deformation during heat treatment.
hardness
Annealing ≤255HB, indentation diameter ≥3.8mm;
Quenching ≥59HRC
Heat treatment specification
Quenching, 820±15ºC preheating, 1000±6ºC (salt bath) or 1010±6ºC (furnace controlled atmosphere) heating,
Keep warm for 10-20min, air cool, tempering at 200±6ºC.
Characteristics of materials
1.2379 Steel Steel is a kind of cold working die steel with high wear resistance and small deformation, belonging to the wind hardening tool steel. The steel has a mass fraction of 1.5 percent carbon and 11.5 percent chromium. After heat treatment, the hardness can reach 60HRC, but the ductility, toughness and rust resistance are relatively weak, and the steel surface is difficult to mirror polishing. With the development of cold stamping products to high precision, high efficiency and variety, the die steel is required to have better wear resistance and toughness. Compared with d3 steel, the chemical composition of the steel increases Mo and V, changes the casting structure of the steel, and improves the morphology of convex stone. The strength, toughness and wear resistance are better than d3 steel, which improves the utilization rate of the die. Life. Because the yield point and plastic deformation resistance of the steel are higher than those of d3 steel, the forging performance and thermoplastic formability of the steel are slightly worse than those of d3 steel.
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