D3 | 1.2080
D3 (1.2080 / X210Cr12) is a high-carbon, high-chromium cold work tool steel offering excellent wear resistance, high compressive strength, and good dimensional stability during heat treatment. Its high hardness and deep hardening capability make it suitable for heavy-duty cutting, punching, stamping, and forming tools.
Available Form
Round Bar
Custom Diameter & Length
Flat Bar
Custom Thickness, Width & Length
Square Bar
Custom Width & Length
Steel Plate
Custom Thickness, Width & Length
Steel Grade Comparison
| W-Nr | EN | AISI | JIS |
| 1.2080 | X210Cr12 | D3 | SKD1 |
Chemical Composition(wt%)
| C | Si | Mn | Cr | Mo | Wo | V |
| 2.00~2.35 | 0.25~0.45 | 0.25~0.45 | 11.0~13.0 | 0.8 | 0.75 | 0.8 |
Physical Properties
Density：7.67 g/cm³
Modulus of Elasticity: 210 GPa
Thermal Conductivity: 20.0 W/(m.K)
| Temperature | 20-100°C | 2-200°C | 2-300°C | 2-400°C |
| Coefficient of Thermal Expansion (×10-6 /K) | 11.7 | 12.0 | 12.4 | 12.9 |
Heat Treatment Process
Hardening: Heat the steel evenly to 930-980°C until the whole section reaches temperature. Then quench in oil to cool.
Annealing: Heat the steel to 870-900°C, hold it well at temperature, and then let it cool slowly inside the furnace.
Tempering: Heat the steel uniformly, hold it at the selected tempering temperature, and then allow it to cool in still air. tempering temperature 200~540°C, hardness 61~54HRC
Application Fields
Cutting tools, stamping, woodworking, drawing, deep drawing and pressing tools, cold working rolls, measuring tools.
Disclaimer: the information and data presented herein are typical values for reference and are not intended as warranties to readers.
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