Tool Steels
Tool and Die Steel Includes Cold Work Steel, Hot Work Steel, Plastic Mould Steel, High Speed Steel. These tool materials adhere to great quality demands of steel like temper, strength, toughness, resistance to tempering, hardening capacity, dimensional stability etc. The range of Tool Steel in our store includes products from renowned manufacturers.
Main characteristics and applications
Alloy and Steels Supplies and Stocks HCHCR D2 steel in India and abroad. D2 steel is an air hardening, high-carbon, high-chromium tool steel.
CHEMICAL COMPOSITION (Typical Analysis in %)
| C | Si | Mn | P(Max) | S(Max) | Cr | Mo | W | V |
|---|---|---|---|---|---|---|---|---|
| 1.40-1.60 | 0.20-0.60 | 0.20-0.50 | 0.03 | 0.03 | 11.0-13.0 | 0.50-.70 | 0.40-.060 | 0.10-0.30 |
APPLICATION
Applications of D2 steels include thread rolling, blanking or forming dies operating at temperatures below 482°C (900°F).
HEAT TREATMENT
D2 steels should be preheated very slowly up to 815°C (1500°F), then temperature should be increased to 1009°C (1850°F) and held for 20 to 45 minutes. Then they are air quenched.
FORGING
Forging of D2 steels can be done at 1065°C (1950°F) down to 1750°F. Do not forge below 926°C (1700°F).
ANNEALING
Annealing of D2 steels should be done at 886°C (1627°F) followed by slow furnace cooling at 4°C (40°F) per hour or less.
TEMPERING
D2 steels can be tempered at 204°C (400°F) for achieving Rockwell C hardness of 61 and at 537°C (1000°F) for a Rockwell C hardness of 54.
SIZE RANGE
ROUND – 20 to 450 MM | SQUARE – 50 to 155 MM
FLATS – THICKNESS : 20 TO 150 MM | WIDTH : 40 to 450 MM