GB :Cr12
C | Si | Mn | Cr | P | S | Co |
2.00-2.30 | ≤0.40 | ≤0.40 | 11.50-13.00 | ≤0.030 | ≤0.030 | ≤1.00 |
ASTM:D3
C | Si | Mn | Cr | V | W |
2.00-2.35 | 0.10-0.60 | 0.10-0.60 | 11.00-13.50 | ≤1.00 | ≤1.00 |
Cr12/ D3 / SKD1 / X210Cr12 alloy tool steel
2. Mechanical Properties
Hardness (HB100/3000) | HRC |
269-217 | ≥60 |
3. Standard
GB: Cr12, ASTM: D3, JIS: SKD1, EN: X210Cr12
4. Specification
Thickness:20mm-300mm or according to your requirements
Width:200mm-800mm or according to your requirements
5. Delivery Condition
Hot rolled, forged
General Information:
Steel with wear resistance and fairly good dimensional stability during heat treatment. Rolls for cold strip mills and wire squeezer mills, circular knives and shear blades, dies for small metal parts, punches and drawing dies, dies for sintering, forming tool rollers, shear blades, molds for plastic materials.
D3 forged steel plate
Comparable Standards:
| AISI/SAE | DIN | W.Nr. | AFNOR | JIS | BS | SIAU | GB,YB |
D3 | X210Cr12 | 1.2080 | Z200C12 | SKD1 | D3 | K12 | - |
Chemical Analysis (%):
| C | Mn | Si | Cr | V | Mo | P | S |
| 1.90-2.20 | 0.15-0.45 | 0.10-0.40 | 11.0-12.0 | - | - | ≤0.03 | ≤0.03 |
Heat treatment
Isothermal annealing:
- Heat to 850°Chold for 1/2 hour to 1 hour;
- Furnace cooling to 770°C and hold at temperature for at least 10 hours;
- Cool by 10°C /h to 720°C;
- Cooling in air.
Stress relieving:
To be carried out after machining and before the final heat treatment.
- Heat to 650-700°C, hold for 4/6 hours:
- Furnace cooling to 330-350°C;
- Cooling in air.
Hardening:
- Initial preheating to 350-450°C;
- Second preheating to 750-850°Cin salt bath at 850°C;
- Austenitizing at 960-100°C;
- Cooling in fluid oil.
Quenched hardness: 64-65 HRC
Payment terms: T/T,L/C.
UT test up to standard SEP 1921-84 Class C/c.
Characteristic application:
All kinds of stainless steel, silicon steel and aluminum sheets stamping mould
