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|3Cr2W8V Hot Working Die Steel |
3Cr2W8V alloy steel belongs to high strength hot work tool steel, Hot extrusion die steel. This alloy is strongly recommended for making extrusion dies, die casting dies for aluminum, magnesium and copper allay.
3Cr2W8V Hot Working Die Steel description
3Cr2W8V alloy steel belongs to high strength hot work tool steel, Hot extrusion die steel. This alloy is strongly recommended for making extrusion dies, die casting dies for aluminum, magnesium and copper allay.
Characteristics:
1. High strength and hardness even under high-temperature condition. Hardness can reach 300HBS at 650℃.
2. Fault surface within80mmin thickness can be fully hardened.
3. Relatively high phrase transformation temperature and good thermal fatigue resistance to alternation of heat and cold.
4. Ductility and toughness are comparatively low.
Chemical Composition(%):
|
C |
Si |
Mn |
P |
S |
Cr |
W |
V |
Ni |
|
0.30~0.40 |
≤0.40 |
≤0.40 |
≤0.030 |
≤0.030 |
2.20~2.70 |
7.50~9.00 |
0.20~0.50 |
1.40-1.80 |
Forging Technique of 3Cr2W8V (H21):
|
Heating Temperature/℃ |
Initial Forging Temperature/℃ |
Final Forging Temperature/℃ |
Cooling |
|
1130~1160 |
1080~1120 |
900~850 |
Air cooling then burialpit or sand cooling |
Specification:
Flat bars: 30 ~90 mm* 120 ~610 mm.
Round bars: Φ30 ~Φ500 mm.
Forged flat bars: 200 ~500 mm*400 ~610 mm.
Applications
1. For making mould which is working at high temperature and stress but without impact load.
2. For making mould which can afford high compressive stress, bending stress and tensile stress.
3. For making metal parting tool which is working under high temperature
