A new high-quality Cr8 series cold work tool steel with high strength and toughness, showing significant improvement in overall performance compared to Cr12 series tool steels.
Composition Design:
Based on Cr8Mo2SiV steel composition, systematically optimized considering the effects of alloying elements on material strength and toughness, achieving enhanced strength-toughness balance to meet high-performance requirements.
Manufacturing Process:
- – Vacuum refining
- – Constant melting rate ESR under protective atmosphere
- – Special forming process
- – Spheroidizing annealing
Features
- – High steel purity with minimal segregation
- – Small difference between longitudinal and transverse properties
- – Uniform carbide distribution
- – Combined high strength and toughness
Applications
- – Blanking dies, cold forming dies, drawing dies, forming rolls, punches, and cold pressing dies
- – Precision blanking dies using wire-cut EDM and various stamping dies
- – Dies for plastic deformation of difficult-to-machine materials
- – High wear-resistant, high-hardness, high-toughness cold stamping dies
- – Large-scale and precision dies
International Standards:
- – China: CTDC53
- – International GB: Cr8Mo2SiV
- – Germany: K340
- – ASSAB: Assab 88
- – Japan: DC53
Chemical Composition (wt.%):
– Carbon (C): 0.90-1.20%
– Silicon (Si): 0.50-0.90%
– Manganese (Mn): ≤0.80%
– Chromium (Cr): 7.50-9.00%
– Molybdenum (Mo): 1.90-2.50%
Supply Specifications:
– Round: Φ12-Φ500
– Flat: 6×200×120×610
– Block: 100×600×300×1000
– Hardness Range: ≤255HB
CTDC53 Physical Properties:
1. Thermal Expansion Coefficient (10⁻⁶/°C)
– At 200°C: 12.6
– At 400°C: 13.2
– At 600°C: 13.7
2. Thermal Conductivity (W/m°C)
– At 25°C: 23.2
– At 200°C: 25.7
– At 400°C: 27.9
– At 600°C: 26.1
3. Specific Heat
– At 25°C: 460 J/kg°C
Note: All properties measured under standard conditions in professional testing facilities.
Other Tool Steel:
