HCHCR-D3
STANDARDS : X210CRW12
HCHCR-D3
DIN 2080
AISI D3
AFNOR Z210CW12-01
| C 2.00 | Si 0.30 | Mn 0.30 | Cr 12.00 |
Bharat Metal is the largest Supplier & Stockiest of HCHCR-D3 Steel in India.
D3 Steel Having 12 % ledeburitic chromium tool steel with great wears resistance .
Basically utilized as cutting tools for sheets up to 4 mm thickness, trimming dies, blanking dies for paper and plastics, shear cutting edges and rotational shear edges for sheet thicknesses up to 2 mm.
Steel Properties
D3 Steel having properties of High Carbon 2% and High chromium 12 % tool steel with high wear resistance. Its supply condition is normally annealed to easy machining which recommended hardness is 57-58 HRC after making the dies & tools.
Physical Properties
| Coefficient of thermal expansionat °C | 20-100 | 20-200 | 20-300 | 20-400 | 20-500 | 20-600 | 20-700 |
|---|---|---|---|---|---|---|---|
| 10-6 m/(m*K) | 10.7 | 11.6 | 12.3 | 12.6 | 12.9 | 13.2 | 13.3 |
| Thermal Conductivity °C | 20 | 350 | 700 |
|---|---|---|---|
| W/(m*K) | 16.6 | 20.5 | 24.3 |
Application
HCHCR D3 is used in cold Dies & tooling application that required the achievement of high degree of accuracy in hardening & tempering, such as dies drawing, forming cold rolls, powder metal tooling and blanking and trimming dies, blanking dies for paper and plastics, shear blades , cold die punches , Ejector pins etc.
Heat Treatment
| Soft annealing °C | Cooling | Hardness HB |
|---|---|---|
| 810 – 850 | Furnace | max. 250 |
| Stress-relief annealing °C | Cooling |
|---|---|
| approx. 670-720 | Furnace |
| Hardening °C | Quenching | Hardness after quenching HRC |
|---|---|---|
| 940 – 970 | Oil | 64.5 |
| Hardening °C | Quenching | Hardness after quenching HRC |
|---|---|---|
| 940 – 970 | Oil | 64.5 |
| 950-980 | Air (up to 30 mm thickness) | 64.5 |
| Tempering °C after Quenching | 100 | 200 | 300 | 400 | 500 | 600 |
|---|---|---|---|---|---|---|
| HRC | 63.5 | 61.5 | 58 | 57.5 | 55 | 47 |
