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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.
32Cr3Mo1V Chemical Composition
C | Si | Mn | Cr | Mo | V | P | S |
|---|---|---|---|---|---|---|---|
0.3-0.35% | 0.2-0.4% | 0.2-0.5% | 2.8-3.3% | 0.8-1.2% | 0.15-0.2% | ≤0.015% | ≤0.015% |
High Temperature Strength and Thermal Stability
Retains high yield strength at 600℃, resists high-temperature creep and thermal deformation, suitable for steel hot rolling under 800~1100℃ service conditions.
High Hardness and Wear Resistance
Surface hardness reaches HRC 58~62 after heat treatment, with matched core toughness. Resists oxide scale abrasion and extends rolling service distance.
Excellent Thermal Fatigue Resistance
Molybdenum (Mo) and Vanadium (V) refine grains and form stable carbides, resisting thermal fatigue cracks under repeated heating/cooling cycles and reducing spalling and cracking risks.
Balanced Strength and Toughness
Low-carbon design combined with alloying provides both high surface hardness and high core toughness, delivering good impact and overload resistance for mills with frequent start-stop and variable load conditions.
Good Hardenability
Uniform through-hardening in large sections ensures consistent internal and external performance, suitable for manufacturing large-diameter and long-face roll sleeves.
Smelting
Electroslag remelting / vacuum refining is adopted to control purity, reduce inclusions and improve cracking resistance.
Forming
Free forging / die forging (for large sizes) or centrifugal casting to ensure compact microstructure free from porosity and cracks.
Heat Treatment
Quenching + high-temperature tempering (quenching and tempering) to precisely control the hardness gradient, achieving a combination of hard surface and tough core.
Precision Machining
CNC turning → rough grinding → finish grinding → super-finish grinding to guarantee dimensional accuracy and surface finish.
Inspection
100% ultrasonic testing, hardness inspection and full dimensional inspection to ensure no internal defects.
Outer diameter: φ600~φ1400 mm (customized according to rolling mill type)
Inner diameter: φ300~φ800 mm (interference fit with roll core)
Roll face length: 1500~5500 mm (adapted to steel plate width)
Wall thickness: 80~200 mm
Tolerances:
Dimensional accuracy of inner/outer diameter: IT6~IT7
Cylindricity: ≤0.02 mm
Surface roughness: Ra ≤0.4 μm
Hot Rolling Steel Plate Mills
Work roll sleeves for roughing and finishing stands, used for rolling plain carbon steel, low-alloy steel, stainless steel slabs and medium-thick plates.
Medium-Thick Plate Mills
Work rolls for 4-high reversible rolling mills, suitable for rolling steel plates with thicknesses of 10–200 mm.
Slab Continuous Casting and Rolling
Outer roll sleeves of casting-rolling rolls, suitable for direct rolling of high-temperature continuous cast slabs.
Long Service Life
Compared with conventional Cr-Mo steel roll sleeves, service life is increased by 30%–50%, reducing roll change and downtime.
High-Precision Rolling
High hardness + low deformation ensure steel plate thickness tolerance of ±0.05 mm and qualified flatness.
High Surface Quality
Low roughness + anti-sticking property reduce surface scratches and pits on steel plates, improving yield.
Strong Adaptability
Various hardnesses, wall thicknesses and dimensions can be customized to fit various domestic / imported steel plate rolling mills.
High Cost Performance
Comprehensive performance is close to imported equivalent roll sleeves with more favorable price, reducing spare part costs.
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.
32Cr3Mo1V Chemical Composition
C | Si | Mn | Cr | Mo | V | P | S |
|---|---|---|---|---|---|---|---|
0.3-0.35% | 0.2-0.4% | 0.2-0.5% | 2.8-3.3% | 0.8-1.2% | 0.15-0.2% | ≤0.015% | ≤0.015% |
High Temperature Strength and Thermal Stability
Retains high yield strength at 600℃, resists high-temperature creep and thermal deformation, suitable for steel hot rolling under 800~1100℃ service conditions.
High Hardness and Wear Resistance
Surface hardness reaches HRC 58~62 after heat treatment, with matched core toughness. Resists oxide scale abrasion and extends rolling service distance.
Excellent Thermal Fatigue Resistance
Molybdenum (Mo) and Vanadium (V) refine grains and form stable carbides, resisting thermal fatigue cracks under repeated heating/cooling cycles and reducing spalling and cracking risks.
Balanced Strength and Toughness
Low-carbon design combined with alloying provides both high surface hardness and high core toughness, delivering good impact and overload resistance for mills with frequent start-stop and variable load conditions.
Good Hardenability
Uniform through-hardening in large sections ensures consistent internal and external performance, suitable for manufacturing large-diameter and long-face roll sleeves.
Smelting
Electroslag remelting / vacuum refining is adopted to control purity, reduce inclusions and improve cracking resistance.
Forming
Free forging / die forging (for large sizes) or centrifugal casting to ensure compact microstructure free from porosity and cracks.
Heat Treatment
Quenching + high-temperature tempering (quenching and tempering) to precisely control the hardness gradient, achieving a combination of hard surface and tough core.
Precision Machining
CNC turning → rough grinding → finish grinding → super-finish grinding to guarantee dimensional accuracy and surface finish.
Inspection
100% ultrasonic testing, hardness inspection and full dimensional inspection to ensure no internal defects.
Outer diameter: φ600~φ1400 mm (customized according to rolling mill type)
Inner diameter: φ300~φ800 mm (interference fit with roll core)
Roll face length: 1500~5500 mm (adapted to steel plate width)
Wall thickness: 80~200 mm
Tolerances:
Dimensional accuracy of inner/outer diameter: IT6~IT7
Cylindricity: ≤0.02 mm
Surface roughness: Ra ≤0.4 μm
Hot Rolling Steel Plate Mills
Work roll sleeves for roughing and finishing stands, used for rolling plain carbon steel, low-alloy steel, stainless steel slabs and medium-thick plates.
Medium-Thick Plate Mills
Work rolls for 4-high reversible rolling mills, suitable for rolling steel plates with thicknesses of 10–200 mm.
Slab Continuous Casting and Rolling
Outer roll sleeves of casting-rolling rolls, suitable for direct rolling of high-temperature continuous cast slabs.
Long Service Life
Compared with conventional Cr-Mo steel roll sleeves, service life is increased by 30%–50%, reducing roll change and downtime.
High-Precision Rolling
High hardness + low deformation ensure steel plate thickness tolerance of ±0.05 mm and qualified flatness.
High Surface Quality
Low roughness + anti-sticking property reduce surface scratches and pits on steel plates, improving yield.
Strong Adaptability
Various hardnesses, wall thicknesses and dimensions can be customized to fit various domestic / imported steel plate rolling mills.
High Cost Performance
Comprehensive performance is close to imported equivalent roll sleeves with more favorable price, reducing spare part costs.
