D3 steel also knows as DIN 1.2080 and JIS SKD1, which is a 12% chrome alloy steel. JIS SKD1 steel has very high wear resistance against abrasive and adhesive wear due to the high volume of hard carbides in the steel matrix, medium toughness, dimensionally stable, high compressive strength, not secondary hardenable.
D3 Steel Grade Equivalent Chart
| Country | USA | Germany/UK/France | JAPAN | ISO |
|---|
| Standard | ASTM A681-08 ALLOY TOOL STEEL | EN ISO 4957: 1999 TOOL STEEL | JIS G4404: 2006 ALLOY TOOL STEEL | ISO 4957: 1999 TOOL STEEL |
| Grades | D3 | X210Cr12/1.2080 | SKD1 | X210Cr12 |
Physical Properties
Physical properties of D3 tool steels are given below:
| Properties | Metric | Imperial |
|---|
| Density | 7.7 x 1000 kg/m3 | 0.278 lb/in3 |
| Melting point | 1421°C | 2590°F |
Mechanical Properties
The mechanical properties of D3 steels are tabulated below:
| Properties | Metric | Imperial |
|---|
| Izod impact unnotched | 28.0 J | 20.7 ft-lb |
| Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
| Elastic modulus | 190-210 GPa | 27557-30457 ksi |
Thermal Properties
The following table shows the thermal properties of D3 steels.
| Properties | Conditions |
|---|
| T (°C) | Treatment |
|---|
| Thermal expansion | 12 x 10-6/ºC | 20-100 | - |
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