EN 
EN
ES
PT
SV
DE
TR
FR
Specifications
AISI D3 alloy steel is heat treatable and will offer a hardness in the range 58-64 HRC. After heat treatment D3 tool steel is hard, durable and dense, and is immune from sinking in use. It offers a measure of corrosion resistance when polished. In general, the applications of AISI D3 tool steel resemble those of D2 tool steel but it should be remembered that alloy tool steel D3 has better wear resistance of the two steels and is preferred for such items as shear blades. Owing to its higher wear resistance, AISI / ASTM D3 cold work steel is slightly more difficult to grind than D2 steels.
Applications:
D3 tool steel used for cold work tool products. Like forming dies , thread rolling dies, cutting knife, etc.
COMPOSITION
| C | Mn | Si | Cr | V |
| 2.15 | 0.40 | 0.40 | 12.25 | 0.25 |
Specifications:
D3 Steel sheets: thickness 10 –500mm x width 200– 1400mm
Chemical Composition of D3 Tool Steel Material
| ASTM A681 | C | Si | Mn | P | S | Cr | Mo | V |
| D3/T30402 | 1.40～1.60 | 0.10～0.60 | 0.20～0.60 | 0.030 Max | 0.030 Max | 11.0～13.0 | 0.70～1.20 | 0.50～1.10 |
| DIN 17350 | C | Si | Mn | P | S | Cr | Mo | V |
| 1.2080/X210Cr12 | 1.50～1.60 | 0.10～0.40 | 0.15～0.45 | 0.030 Max | 0.030 Max | 11.0～12.0 | 0.60～0.80 | 0.90～1.10 |
| GB/T 1299 | C | Si | Mn | P | S | Cr | Mo | V |
| Cr12 | 1.40～1.60 | ≤0.60 | ≤0.60 | 0.030 Max | 0.030 Max | 11.00～13.00 | 0.70～1.20 | ≤1.10 |
| JIS G4404 | C | Si | Mn | P | S | Cr | Mo | V |
| SKD1 | 1.40～1.60 | ≤0.40 | ≤0.60 | 0.030 Max | 0.030 Max | 11.0～13.0 | 0.80～1.20 | 0.20～0.50 |
D3 tool Steel Equivalent and Related Specification
| USA | German | Japan | China | ISO |
| ASTM A681 | DIN 17350 | JIS G4404 | GB/T 1299 | ISO 4957 |
| D3 | 1.2080 | SKD1 | Cr12 | X200Cr12 |
ASTM AISI D3 Tool Steel Material Mechanical Properties
Hardness, Rockwell C: 63 HRC
Izod impact unnotched: 77 J.
Forged of hot work D3 Steel material metal
Forged D3 tool steel at 954 – 1065 ºC. no forging when below 926 ºC.
Heat Treatment of SAE/AISI D3Steel
D3 Steel Annealing
Slowly heat to 871-898 ºC, keep enough time, then cooling in furnace at 4-5 ºC per hour.
D3 tool Steel Hardening & Quenching
Quenching temperature / ℃ | salt bath furnace: 954
Quenching temperature / ℃ | controlled atmosphere furnace: 968
The heat preservation time/min: 10 to 20
Quenching medium: oil
Tempering Of D3 Steel
Tempering temperature / ℃ : 204
After tempering hardness HRC or higher: 61
| Item | Dimension (mm) | Process | Delivery condition |
| Sheets | T1.0 - 2.5 | Cold Rolled | Black surface & Anneal |
| T 2.5 - 8.0 | Hot Rolled | Black surface & Anneal |
