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FORGE-S
ETERNAL
32Cr3Mo1V hot work die steel has high strength, good toughness, good hardenability, high temperature plasticity, good forging performance, and good machinability. It is generally used after tempering, normalizing, and high-temperature tempering.
Key parameter
Core material | 32Cr3Mo1V hot work die steel |
Chemical composition | C 0.30%–0.35%、Si 0.20%–0.40%、Mn 0.20%–0.50%、P≤0.015%、S≤0.015%、Cr 2.7%–3.2%、Mo 0.8-1.1%、V 0.15%–0.25% |
Q&T hardness | 370–420 HB |
Mechanical property | Tensile strength ≥ 1300 MPa, yield strength ≥ 1100 MPa, elongation ≥ 14%, reduction of area ≥ 50% |
Production Process | Electric furnace + LFV + Electroslag Remelting → Forging (forging ratio ≥ 5) → Normalizing + Tempering (quenching and tempering) → CNC precision grinding → Dynamic balancing |
Operating Condition | Continuous casting-rolling / cold rolling of copper plate, operating temperature 300–650℃, high-load cyclic rolling |
Purification Smelting
Electric furnace refining + LFV + electroslag remelting are adopted to greatly reduce inclusions and gas content, and improve microstructure compactness and purity.
Precision Forging
After heating, the ingot undergoes upsetting, punching, reaming, drawing and other processes, with a forging ratio ≥ 5. This refines grains, eliminates as-cast defects, and ensures stable mechanical properties.
Quenching and Tempering Heat Treatment
Normalizing + two subcooling treatments + diffusion dehydrogenation (650℃) optimize microstructure uniformity, reduce internal stress, and guarantee thermal fatigue resistance and dimensional stability.
High-Precision Machining
CNC turning, boring and precision grinding are applied to strictly control tolerances of outer diameter, roundness, coaxiality, etc. Dynamic balancing verification is performed to meet the requirements of high-speed rotary rolling.
Roll Sleeve for Twin-Roll Continuous Casting and Rolling of Copper Plate/Strip
Directly contacts molten copper to complete solidification and primary rolling, ensuring surface finish and profile uniformity of copper plates.
Work Roll / Backup Roll Sleeve for Copper Plate Cold Rolling Mill
Withstands high reduction and severe friction, improves surface quality of cold-rolled copper strips, and reduces roll change frequency.
Applicable Scenarios
Copper plate and strip production lines, pre-rolling of copper foil, special rolling mills for brass / red copper, etc.
Longer Service Life
Superior thermal fatigue resistance and wear resistance over conventional roll materials, significantly delaying the initiation of thermal cracks and reducing downtime for roll replacement.
Better Strip Shape
High hardness uniformity and small thermal deformation enable stable control of thickness and profile of copper plates and strips, reducing defects such as edge waves and warpage.
High Surface Quality
Compact microstructure without obvious defects ensures rolled copper plates feature smooth surface, free of scratches and inclusions, thus improving yield.
Flexible Customization
Dimensions can be customized according to copper rolling mill specifications (diameter, length, wall thickness). Supporting surface strengthening solutions are available to adapt to rolling requirements of different copper alloys.
32Cr3Mo1V hot work die steel has high strength, good toughness, good hardenability, high temperature plasticity, good forging performance, and good machinability. It is generally used after tempering, normalizing, and high-temperature tempering.
Key parameter
Core material | 32Cr3Mo1V hot work die steel |
Chemical composition | C 0.30%–0.35%、Si 0.20%–0.40%、Mn 0.20%–0.50%、P≤0.015%、S≤0.015%、Cr 2.7%–3.2%、Mo 0.8-1.1%、V 0.15%–0.25% |
Q&T hardness | 370–420 HB |
Mechanical property | Tensile strength ≥ 1300 MPa, yield strength ≥ 1100 MPa, elongation ≥ 14%, reduction of area ≥ 50% |
Production Process | Electric furnace + LFV + Electroslag Remelting → Forging (forging ratio ≥ 5) → Normalizing + Tempering (quenching and tempering) → CNC precision grinding → Dynamic balancing |
Operating Condition | Continuous casting-rolling / cold rolling of copper plate, operating temperature 300–650℃, high-load cyclic rolling |
Purification Smelting
Electric furnace refining + LFV + electroslag remelting are adopted to greatly reduce inclusions and gas content, and improve microstructure compactness and purity.
Precision Forging
After heating, the ingot undergoes upsetting, punching, reaming, drawing and other processes, with a forging ratio ≥ 5. This refines grains, eliminates as-cast defects, and ensures stable mechanical properties.
Quenching and Tempering Heat Treatment
Normalizing + two subcooling treatments + diffusion dehydrogenation (650℃) optimize microstructure uniformity, reduce internal stress, and guarantee thermal fatigue resistance and dimensional stability.
High-Precision Machining
CNC turning, boring and precision grinding are applied to strictly control tolerances of outer diameter, roundness, coaxiality, etc. Dynamic balancing verification is performed to meet the requirements of high-speed rotary rolling.
Roll Sleeve for Twin-Roll Continuous Casting and Rolling of Copper Plate/Strip
Directly contacts molten copper to complete solidification and primary rolling, ensuring surface finish and profile uniformity of copper plates.
Work Roll / Backup Roll Sleeve for Copper Plate Cold Rolling Mill
Withstands high reduction and severe friction, improves surface quality of cold-rolled copper strips, and reduces roll change frequency.
Applicable Scenarios
Copper plate and strip production lines, pre-rolling of copper foil, special rolling mills for brass / red copper, etc.
Longer Service Life
Superior thermal fatigue resistance and wear resistance over conventional roll materials, significantly delaying the initiation of thermal cracks and reducing downtime for roll replacement.
Better Strip Shape
High hardness uniformity and small thermal deformation enable stable control of thickness and profile of copper plates and strips, reducing defects such as edge waves and warpage.
High Surface Quality
Compact microstructure without obvious defects ensures rolled copper plates feature smooth surface, free of scratches and inclusions, thus improving yield.
Flexible Customization
Dimensions can be customized according to copper rolling mill specifications (diameter, length, wall thickness). Supporting surface strengthening solutions are available to adapt to rolling requirements of different copper alloys.
