DIN 1.2379 Black Surface Hot Rolled High Carbon Alloy Steel Round
Bar Dia 15-80mm
Similar grades: DIN-1.2379, AISI-D2, JIS-SKD11, GB-Cr12Mo1V1
Chemical composition (%):
| C | Si | Mn | Cr | Mo | V | P | S |
| 1.40-1.60 | 0.30-0.50 | 0.30-0.50 | 11.0-13.0 | 0.70-1.20 | ≤0.8 | ≤0.030 | ≤0.030 |
Brief Introduction:
1.2379 / D2 die steel, high wear resistance and micro deformation,
cold working die steel, wind hard tool steel, carbon content up to
1.5%, chromium content high, noisy 11.5%, heat treatment, hardness
up to 60HRC. D2 steel can be used to make large cross section,
complex shape, strong impact, high resistance to cold working die
steel, such as silicon steel sheet die, cold cutting scissors,
trimming die, etc..
1.2379 / D2 is a high carbon and high chromium alloy tool steel
with high hardness and wear resistance after heat treatment, and
has the characteristics of strong quenching and good dimensional
stability.
Available size (mm):
| Flat Bar Size(mm) | Round bar Size(mm) |
| Thickness | Width | Length | Diameter | Length |
| 8-80 | 155-610 | 3000-6000 | 14-80 | 300-6000 |
Feature:
1, Good processing, heat treatment size stability.
2, Excellent machinability.
3, Excellent dimensional stability when hardened.
4, After hardening and tempering, the high surface hardness match
well with the toughness of the body.
Recommend heat treatment:
| Quenching | Tempering |
| Heating temperature/℃ | Cooling | Hardness/HRC | Heating temperature/℃ | Cooling | Hardness/HRC |
| 980-1040 | Oil or Air | 60-65 | 180-220 | Air | 60-64 |
| 1060-1100 | 60-65 | 510-540 | Air | 60-64 |
Advantages:
1. High wear resistance;
2. High compressive strength;
3. Good dimensional stability;
4. Good machining performance;
5. Good toughness;
6. Excellent softening of temper.
Applications:
| For metal stamping die, drawing die, stainless steel sheet punching
die, high hardness punching die, cutting knife mold, Roll Die,
metal parts production, machinery manufacturing etc. |
| 1, | Used for drawing die of refrigerator compressor rear cover,
quenching hardness 56~58HRC. |
| 2, | In order to improve the service life of flat rolling material for
D2 cold working die, the wear resistance and impact toughness of
steel are greatly improved by adding rare earth, so as to improve
the service life of flat rolling material of round die. |
| 3, | Because the content of V and Mo in D2 steel is higher than that of
Cr12MoV steel, it has better comprehensive properties, and the
traditional Cr12MoV steel will be replaced gradually. |
| 4, | Made of D2 steel rolling wheels, from Taiwan palette die, and
Cr12MoV can improve the service life of steel compared to 5 ~6
times. |
Terms of payment:
30% deposit T/T and the balance by L/C at sight, or T/T.
Delivery condition:
For abundant stock, 15-20 days.For customized products, 30-50 days.
Product photos:
