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China, Chinese Steel Cold Forging Roll Material 40crmo Od 100 with Heat Treatment1 Industrial Products Supplier Manufacturer Details, price list catalog:
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ShaftChrome ShaftCold Forging RollSteel Forging Roll
Jiangyin Eternal Heavy Industry Co., Ltd.
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Product Description 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 mill2. Aluminum plate cold rolling mill3. Copper plate cold rolling mill Forged backup roll features:1. Choose high strength forging material2. Forging raw material choose ESR ingot3. Long time annealing after forgings to remove inside stress4. Oil quenching heat treatment to reduce crack risks5. Double -frequency quenching to reach a high hardness value and depth layer6. 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 resistanceChromium (Cr)2.50%~3.50%enhances hardenability, corrosion resistance, and high temperature stabilityMolybdenum (Mo)0.20%~0.40%improves thermal strength and resistance to tempering softeningSilicon (Si) 0.25%~0.45% manganese (Mn)0.20%~0.35%assisting deoxidation and strengthening the matrixNickel (Ni)≤ 0.25%improves low-temperature toughness (non essential addition)Some variants (such as 9Cr3MoV) contain0.15% to 0.30%refining grain size and improving wear resistance Element Function AnalysisThe 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 :HardnessAfter 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 characteristicsAs 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 etc2. Cold rolling stainless steel plate: 70Cr3Mo, 70Cr3NiMo, 45Cr4NiMoV etc3. Cold rolling aluminum plate: 70Cr3Mo, 9Cr3Mo, 9Cr5Mo. etc4. Cold rolling copper plate: 70Cr3Mo,9Cr3Mo, 9Cr5Mo. etcAbout UsJiangyin Eternal Heavy Industry Co.,Ltd. was established in 2008, it is National high-tech enterprise, innovative small and medium-sized enterprise. Till now our main products including all kinds of special steel forgings and heavy duty hydraulic cylinder.Our special steel forgings include all kinds of alloy steel forging, mould die steel forging, stainless steel forgings etc.They are made for forging roll, forging shaft, forging ring, forging sleeve, forging plate, forging round bar etc.Its size is from OD150mm to OD1000mm, length up to 12000mm. They have been applicated on petroleum machinery, mining machinery, metallurgical equipment, power equipment, etc.We also make all kinds of heavy duty hydraulic cylinders they are installed on hydraulic press, extrusion press, and all kinds construction machinery etc. Our hydraulic cylinder pressure could reach 3600 tons, max length could reach 12 meters.Our company owns 2000 tons fast speed forging production line, heat treatment quenching and tempering furnace, middle-frequency induction surface hardening machine with 6 meter standing height, 500 tons straightening machine, all kinds of CNC lathe machine, CNC frame type machining center, all kinds of quality inspection equipment, such as mechanical property test machine, non-destructive test machine etc.At present, our products have been exported to Europe, U.S.A, South Africa, Russian, Mexico, Brazil, Peru, Chile, Korea, Vietnam, Indonesia, Middel East etc more than 80 countries, our quality is accepted by customers. In future we would devote ourselves to deep research and new market, and we expect to make a better co-operation with our customer.
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