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FORGE-BR
ETERNAL
Forged cold rolling backup rolls are used in cold rolling mills to make steel plate, aluminum plate, copper plate etc. They are typically made of forged steel, which provides high toughness and purity, and are widely used in cold rolling, and other types of rolling operations
Forged backup rolls application:
1. Steel plate cold rolling mill
2. Aluminum plate cold rolling mill
3. Copper plate cold rolling mill
Forged backup roll features:
1. Choose high strength forging material
2. Forging raw material choose ESR ingot
3. Long time annealing after forgings to remove inside stress
4. Oil quenching heat treatment to reduce crack risks5. Double -frequency quenching to reach a high hardness value and depth layer
6. Hardness range: HRC55-65
9Cr3Mo chemical specification :
As a high-performance cold-rolled industrial roll steel, the core element ratio of 9Cr3Mo is as follows:
Carbon (C): 0.85%~0.95%, providing basic hardness and wear resistance.
Chromium (Cr): 2.50%~3.50%, enhances hardenability, corrosion resistance, and high temperature stability.
Molybdenum (Mo): 0.20%~0.40%, improves thermal strength and resistance to tempering softening.
Other elements:
Silicon (Si) 0.25%~0.45%,
manganese (Mn) 0.20%~0.35%, assisting deoxidation and strengthening the matrix.
Nickel (Ni) ≤ 0.25%, improves low-temperature toughness (non essential addition).
Some variants (such as 9Cr3MoV) contain 0.15% to 0.30% vanadium (V),
refining grain size and improving wear resistance.
Element Function Analysis
The synergistic effect of chromium and molybdenum: chromium forms carbides to improve hardenability, while molybdenum delays tempering softening. The combination of the two makes steel suitable for high-strength rolling environments.
Carbide stability: High carbon content and carbides formed with chromium/molybdenum can maintain high temperature hardness, which is a key characteristic of cold rolling mill steel.
9Cr3Mo mechanical property
9Cr3Mo mainly include high hardness, wear resistance, and good tensile strength. Its hardness range varies depending on the heat treatment process and application scenario, usually between HRC54-68.
The specific analysis is as follows:
Core parameters of mechanical performance :Hardness
After heat treatment, the surface hardness can reach HRC65-68 (such as high-precision rolling rolls used for battery electrode rolling, which have undergone cryogenic treatment and chrome plating treatment).
The overall hardness range after conventional heat treatment is HRC54-60 (suitable for wear-resistant scenarios such as rolling mills and round steel).
There may be differences in internal and surface hardness (e.g. roller internal hardness HRC60-62, higher surface hardness).
Application scenarios and performance characteristics
As a rolling material, it has both wear resistance and tensile strength, making it suitable for high-precision rolling (such as battery electrode rolling, with roller surface roughness Ra ≤ 0.4 μ m).
Forged backup roll other raw material grade choice:
1. Cold rolling carbon steel plate: 70Cr3Mo, 70Cr3NiMo, 45Cr4NiMoV etc
2. Cold rolling stainless steel plate: 70Cr3Mo, 70Cr3NiMo, 45Cr4NiMoV etc
3. Cold rolling aluminum plate: 70Cr3Mo, 9Cr3Mo, 9Cr5Mo. etc
4. Cold rolling copper plate: 70Cr3Mo,9Cr3Mo, 9Cr5Mo. etc
Forged cold rolling backup rolls are used in cold rolling mills to make steel plate, aluminum plate, copper plate etc. They are typically made of forged steel, which provides high toughness and purity, and are widely used in cold rolling, and other types of rolling operations
Forged backup rolls application:
1. Steel plate cold rolling mill
2. Aluminum plate cold rolling mill
3. Copper plate cold rolling mill
Forged backup roll features:
1. Choose high strength forging material
2. Forging raw material choose ESR ingot
3. Long time annealing after forgings to remove inside stress
4. Oil quenching heat treatment to reduce crack risks5. Double -frequency quenching to reach a high hardness value and depth layer
6. Hardness range: HRC55-65
9Cr3Mo chemical specification :
As a high-performance cold-rolled industrial roll steel, the core element ratio of 9Cr3Mo is as follows:
Carbon (C): 0.85%~0.95%, providing basic hardness and wear resistance.
Chromium (Cr): 2.50%~3.50%, enhances hardenability, corrosion resistance, and high temperature stability.
Molybdenum (Mo): 0.20%~0.40%, improves thermal strength and resistance to tempering softening.
Other elements:
Silicon (Si) 0.25%~0.45%,
manganese (Mn) 0.20%~0.35%, assisting deoxidation and strengthening the matrix.
Nickel (Ni) ≤ 0.25%, improves low-temperature toughness (non essential addition).
Some variants (such as 9Cr3MoV) contain 0.15% to 0.30% vanadium (V),
refining grain size and improving wear resistance.
Element Function Analysis
The synergistic effect of chromium and molybdenum: chromium forms carbides to improve hardenability, while molybdenum delays tempering softening. The combination of the two makes steel suitable for high-strength rolling environments.
Carbide stability: High carbon content and carbides formed with chromium/molybdenum can maintain high temperature hardness, which is a key characteristic of cold rolling mill steel.
9Cr3Mo mechanical property
9Cr3Mo mainly include high hardness, wear resistance, and good tensile strength. Its hardness range varies depending on the heat treatment process and application scenario, usually between HRC54-68.
The specific analysis is as follows:
Core parameters of mechanical performance :Hardness
After heat treatment, the surface hardness can reach HRC65-68 (such as high-precision rolling rolls used for battery electrode rolling, which have undergone cryogenic treatment and chrome plating treatment).
The overall hardness range after conventional heat treatment is HRC54-60 (suitable for wear-resistant scenarios such as rolling mills and round steel).
There may be differences in internal and surface hardness (e.g. roller internal hardness HRC60-62, higher surface hardness).
Application scenarios and performance characteristics
As a rolling material, it has both wear resistance and tensile strength, making it suitable for high-precision rolling (such as battery electrode rolling, with roller surface roughness Ra ≤ 0.4 μ m).
Forged backup roll other raw material grade choice:
1. Cold rolling carbon steel plate: 70Cr3Mo, 70Cr3NiMo, 45Cr4NiMoV etc
2. Cold rolling stainless steel plate: 70Cr3Mo, 70Cr3NiMo, 45Cr4NiMoV etc
3. Cold rolling aluminum plate: 70Cr3Mo, 9Cr3Mo, 9Cr5Mo. etc
4. Cold rolling copper plate: 70Cr3Mo,9Cr3Mo, 9Cr5Mo. etc