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4Cr14Ni14W2Mo
4Cr14Ni14W2Mo is a high-performance martensitic aging stainless steel specifically engineered for medium-to-high temperature, high-strength, and corrosion-resistant applications. Through precise formulation of chromium (Cr), nickel (Ni), tungsten (W), and molybdenum (Mo), it delivers exceptional high-temperature strength, corrosion resistance, and dimensional stability, making it a standout choice for high-end machinery and aerospace components. Manufactured using premium sponge chromium, electrolytic nickel, tungsten iron, and molybdenum iron as raw materials, this steel undergoes arc furnace smelting combined with vacuum self-consumption remelting processes. Its chemical composition is precisely controlled with ultra-low impurity levels (P≤0.030%, S≤0.020%), ensuring uniform microstructure and complete martensitic transformation without segregation. Key features include: long-term service temperatures up to 600°C, short-term exposure to 700°C, and outstanding high-temperature strength with creep resistance. After aging treatment, it achieves hardness of HRC40-45 and tensile strength ≥1100MPa, providing exceptional load-bearing capacity. The material demonstrates excellent resistance to organic acids, seawater, steam, and medium-concentration acidic/alkaline environments, with no visible pitting or stress corrosion cracking. It also offers superior cold/hot workability and weldability, making it ideal for manufacturing complex high-strength components. Whether for high-temperature valves, precision transmission parts, or aerospace structural elements, 4Cr14Ni14W2Mo delivers stable high-performance, ensuring reliable material support for equipment operation under extreme conditions. This makes it the preferred martensitic aging stainless steel for medium-to-high temperature, high-strength, and corrosion-resistant applications.
The 4Cr14Ni14W2Mo products showcased here cover a wide range of specifications, designed to meet the processing and application requirements of various medium-to-high-temperature high-strength equipment components. The specific models and detailed parameters are as follows:
- Round steel/rod specifications: 4Cr14Ni14W2Mo-Φ (diameter) × L (length), with diameters ranging from 5mm to 300mm and standard lengths of 6000mm. Customized cutting is available upon request (minimum cut length: 50mm). Precision grades include standard (±0.5mm), precision (±0.1mm), and ultra-precision (±0.05mm), suitable for high-temperature shafts, valve cores, and similar applications.
- Plate specifications: 4Cr14Ni14W2Mo-δ (thickness) × W (width) × L (length), with thickness ranging from 3mm to 50mm, standard widths of 1000mm, 1220mm, and 1500mm, and customizable lengths including 2000mm and 3000mm. Surface treatments such as annealing, pickling, and passivation are available, making it suitable for manufacturing high-temperature equipment linings, valve housings, and related components.
- Forged parts specifications: 4Cr14Ni14W2Mo alloy, dimensions ranging from 100×100×100mm to 600×600×600mm (length×width×height). Customized forgings are available. Through multi-pass hot working, the grains are refined to achieve superior high-temperature strength and microstructural stability, making them ideal for manufacturing large valve bodies, high-temperature reactor components, and other integral parts.
- Pipe specifications: 4Cr14Ni14W2Mo-Φ (outer diameter) × δ (wall thickness) × L (length), with outer diameters ranging from 10mm to 200mm and wall thicknesses from 1mm to 15mm. The standard length is 6000mm, and custom cutting is available. This pipe is suitable for medium-and high-temperature fluid transmission pipelines, high-temperature valves, and pipe fittings.
- Compliance standards: GB/T 1220-2021 "Stainless Steel Bars", GB/T 4237-2015 "Hot-rolled Stainless Steel Plates and Strips", and equivalent specifications for martensitic aging stainless steel. Material certificates, smelting reports, and third-party inspection reports are available upon request.
- Chemical composition (mass percentage,%): C ≤0.08, Si ≤0.80, Mn ≤0.80, P ≤0.030, S ≤0.020, Cr 13.00-15.00, Ni 13.00-15.00, W 1.50-2.50, Mo 0.80-1.20, Cu ≤0.30, N ≤0.05, total other impurities ≤0.30. High chromium ensures corrosion resistance, nickel stabilizes austenite transformation, tungsten and molybdenum synergistically enhance high-temperature strength, and the combined ratio of these four elements endows the steel with core high-performance properties.
- Heat treatment parameters: ① Solution treatment: Temperature 1050-1100°C, holding time 2-3 hours, oil-cooled or air-cooled. The resulting microstructure is supersaturated austenite with hardness ≤280HBW, suitable for machining. ② Aging treatment: Temperature 500-550°C, holding time 4-6 hours, air-cooled. Intermetallic compounds precipitate during aging, increasing hardness to HRC40-45 for strength enhancement. ③ Annealing treatment: Temperature 850-900°C, holding time 2-4 hours, furnace-cooled. Post-annealing hardness ≤240HBW, eliminating processing stresses and optimizing microstructural stability.
The 4Cr14Ni14W2Mo product features a well-defined appearance and stringent precision control: The round steel/rod surfaces exhibit uniform silver-gray metallic luster, free from oxide scale accumulation, cracks, inclusions, or porosity defects. With excellent diameter consistency and no visible bending deformation, the precision-grade product achieves a surface roughness of Ra≤0.8μm. The sheet metal surfaces are smooth and flat, with no burrs on the edges and neat cutting surfaces, maintaining dimensional deviations within ±0.05mm. Forged parts display uniform forging marks without flash or cracks. The pipe inner walls are smooth and burr-free, with uniform outer diameter and wall thickness, free from oval deformation. The overall appearance demonstrates superior quality, showcasing the excellence of refined and formed processes, and is ready for direct use in subsequent precision machining and assembly.
Metallographic analysis reveals that the 4Cr14Ni14W2Mo alloy in its solid solution state exhibits a homogeneous, fine-grained supersaturated austenite structure with grain sizes controlled at ASTM 6-7 level, showing no significant carbide precipitation or segregation. After aging treatment, the microstructure transforms into a martensite matrix with dispersed intermetallic compounds (Ni₃Mo, Ni₃W, etc.), where precipitate phases measure ≤0.1μm in size, exhibit uniform distribution, and show no intergranular corrosion tendency. Through vacuum self-consumption remelting, the steel achieves complete removal of internal impurities, with defects such as shrinkage cavities and porosity occurring at an extremely low rate. The density reaches over 99.9%, and impurity inclusions measure ≤Φ0.2mm, ensuring components remain failure-free under long-term medium-high temperature and high-strength operating conditions, thereby guaranteeing stable equipment performance.
- Hardness: Solid solution hardness ≤280HBW, annealed hardness ≤240HBW, suitable for mechanical processing and forming; after aging treatment, the hardness stabilizes at HRC40-45 with uniform distribution and deviation within ±1HRC. Surface strengthening treatments (e.g., nitriding) can further enhance the hardness to above HRC50, improving wear resistance.
- Mechanical properties (post-aging): At room temperature, tensile strength ≥1100MPa, yield strength ≥900MPa, elongation at break ≥15%, reduction of area at break ≥35%, and impact toughness αk ≥50J/cm² (room temperature). At 600°C, tensile strength ≥600MPa, and creep strength (1000h) ≥250MPa. It exhibits excellent balance between strength and toughness at both ambient and high temperatures, capable of withstanding high-intensity loads and minor impacts under moderate to high temperatures.
- High-temperature performance: Capable of long-term operation at temperatures up to 600°C with short-term peak temperatures reaching 700°C. Demonstrates excellent oxidation resistance at 600°C, with a corrosion rate ≤0.015 mm/year. Features outstanding creep resistance, exhibiting a creep elongation rate ≤0.5%/1000h under 600°C and 200MPa loads, effectively resisting plastic deformation at high temperatures to ensure long-term dimensional stability of components.
- Corrosion Resistance: Demonstrates excellent corrosion resistance in ambient organic acids, seawater, steam, and medium-concentration (≤10%) acidic or alkaline media, with no significant pitting or crevice corrosion observed. In chlorine-containing environments, its stress corrosion cracking resistance significantly outperforms conventional martensitic stainless steel, achieving a corrosion rate of ≤0.004mm/year after 2000 hours of salt spray testing, making it suitable for complex corrosive conditions.
- Physical properties: Density 7.85g/cm³, melting point 1360-1400℃, thermal expansion coefficient (20-600℃) 15.5×10⁻⁶/K, thermal conductivity (20℃) 17.2W/(m·K). It exhibits excellent thermal stability in medium-high temperature ranges with minimal thermal deformation, making it suitable for temperature cycling and high-precision applications.
- Machining and Welding Properties: The material demonstrates excellent cold and hot workability, enabling operations such as turning, milling, stamping, and bending, with outstanding dimensional stability after forming. It exhibits superior welding performance, compatible with processes like TIG welding and MIG welding. ER410NiMo welding wire is recommended. Thick plates require preheating to 150-200°C before welding, followed by immediate aging treatment to relieve welding stresses and ensure weld zone properties match the base material.
The process employs high-purity alloy materials through a dual-refining system combining electric arc furnace smelting and vacuum self-consumption remelting, with strict control over chemical composition and impurity levels (P≤0.030%, S≤0.020%) to ensure pure steel material and uniform microstructure. Finite element simulation optimizes thermal processing and treatment parameters to prevent grain coarsening and precipitate phase aggregation, effectively eliminating material-related part failure risks at the source. This provides a solid foundation for manufacturing and using components under medium-to-high-temperature and high-strength conditions.
The core advantage lies in its exceptional medium-to-high temperature strength and corrosion resistance. After aging, its tensile strength exceeds 1100MPa, maintaining high strength even at 600°C—over 60% higher than conventional martensitic stainless steel in high-temperature endurance. It also demonstrates outstanding oxidation resistance and creep resistance, enabling long-term adaptation to medium-to-high temperature loading conditions. Its corrosion resistance covers multiple corrosive media without additional treatment, extending service life by 80%-120% and meeting stringent medium-to-high temperature high-strength corrosion requirements.
The product range covers various forms including round steel/bar, plates, forgings, and pipes, with comprehensive standard specifications available across all configurations. Thickness options span from 3mm to 50mm and diameters from 5mm to 300mm. Customized solutions are supported for irregular dimensions and special precision grades (ultra-precision ±0.05mm), along with integrated heat treatment (solid solution + aging) and surface treatments (pickling, passivation, nitriding). These features eliminate the need for additional secondary processing, enabling direct adaptation to design and manufacturing requirements for medium-high temperature high-strength components while reducing processing time and costs.
Engineered for medium-high temperature, high-strength, and corrosion-resistant applications, this solution meets the demands of high-end machinery, aerospace, chemical processing, and valve manufacturing with exceptional adaptability. Its superior machinability and weldability enable the production of complex-shaped, high-strength components, enhancing design flexibility and manufacturing efficiency. The material also withstands harsh conditions including steam exposure, acidic/alkaline environments, and chlorine-containing atmospheres, while excelling in high-temperature/high-pressure and high-strength load scenarios to reduce equipment maintenance costs.
Every batch undergoes rigorous quality control throughout the entire production process, including chemical composition analysis, metallographic structure examination, hardness testing, tensile performance testing (at both room temperature and high temperature), impact toughness testing, corrosion testing (salt spray and acid/alkali), ultrasonic testing (UT), and magnetic particle testing (MT). These measures ensure all specifications comply with GB/T 1220-2021 standards and client requirements. We provide comprehensive test reports, material certifications, and smelting records, with third-party retesting capabilities to guarantee quality assurance and client confidence.
4Cr14Ni14W2Mo is widely used in manufacturing equipment components for medium-high temperature and high-strength corrosion environments due to its exceptional strength, corrosion resistance, and comprehensive mechanical properties. The specific applications are as follows:
This premium material is the core material of high-end high-temperature and high-pressure valves, suitable for manufacturing power plant boiler valves, chemical high-temperature valves, and nuclear auxiliary valves. It can produce core components such as valve cores, stems, bodies, and seats, and is widely used in thermal power plants, nuclear power plants, and chemical reactors. The material can operate stably under high-temperature (600°C) and high-pressure (≥10MPa) conditions, resisting corrosion from high-temperature steam and chemical media. This ensures the valve's sealing performance and service life while reducing leakage risks.
Designed for manufacturing medium-to-high temperature auxiliary components in aerospace applications, this material can produce aircraft engine support brackets, combustion chamber accessories, spacecraft propulsion system piping, and missile structural components. With exceptional high-temperature strength and corrosion resistance, it withstands the extreme temperatures and load impacts encountered during aerospace operations, ensuring flight safety and operational stability. Additionally, it enables lightweight component design, enhancing equipment maneuverability.
Designed for manufacturing high-temperature, high-strength, and corrosion-resistant components in the chemical and petroleum industries, these products include high-temperature and high-pressure reactor linings for chemical plants, high-temperature wear-resistant parts for oil drilling and production equipment, high-strength pipe fittings for oil wells, and chemical fluid transportation pipelines. Capable of withstanding corrosion from acidic/alkaline media, sulfur-containing crude oil, and high-temperature chemical intermediates, they maintain stable performance in high-temperature, high-pressure environments, extend equipment service life, and reduce safety risks in chemical production.
Capable of manufacturing high-strength transmission components and mechanical parts for medium-to-high temperature environments, including gas turbine auxiliary shafts, high-temperature gears, precision screws, and high-temperature resistant hydraulic valve cores. With exceptional strength and wear resistance, these components withstand high-intensity transmission loads and frictional wear under medium-to-high temperature conditions, ensuring stable operation of transmission systems. They enhance the efficiency and reliability of mechanical equipment, meeting the stringent demands of high-end precision machinery.
Beyond its primary applications, 4Cr14Ni14W2Mo is also utilized in manufacturing components for nuclear industry auxiliary equipment, high-temperature and high-strength parts in advanced instruments, and core components of high-temperature sterilization equipment in the food processing sector. It meets the corrosion-resistant requirements of medium-to-high-temperature and high-strength applications across multiple industries, including aerospace, chemical, and precision machinery, providing material support for the efficient operation of various high-end equipment.
4Cr14Ni14W2Mo is a high-performance martensitic aging stainless steel specifically engineered for medium-to-high temperature, high-strength, and corrosion-resistant applications. Through precise formulation of chromium (Cr), nickel (Ni), tungsten (W), and molybdenum (Mo), it delivers exceptional high-temperature strength, corrosion resistance, and dimensional stability, making it a standout choice for high-end machinery and aerospace components. Manufactured using premium sponge chromium, electrolytic nickel, tungsten iron, and molybdenum iron as raw materials, this steel undergoes arc furnace smelting combined with vacuum self-consumption remelting processes. Its chemical composition is precisely controlled with ultra-low impurity levels (P≤0.030%, S≤0.020%), ensuring uniform microstructure and complete martensitic transformation without segregation. Key features include: long-term service temperatures up to 600°C, short-term exposure to 700°C, and outstanding high-temperature strength with creep resistance. After aging treatment, it achieves hardness of HRC40-45 and tensile strength ≥1100MPa, providing exceptional load-bearing capacity. The material demonstrates excellent resistance to organic acids, seawater, steam, and medium-concentration acidic/alkaline environments, with no visible pitting or stress corrosion cracking. It also offers superior cold/hot workability and weldability, making it ideal for manufacturing complex high-strength components. Whether for high-temperature valves, precision transmission parts, or aerospace structural elements, 4Cr14Ni14W2Mo delivers stable high-performance, ensuring reliable material support for equipment operation under extreme conditions. This makes it the preferred martensitic aging stainless steel for medium-to-high temperature, high-strength, and corrosion-resistant applications.
The 4Cr14Ni14W2Mo products showcased here cover a wide range of specifications, designed to meet the processing and application requirements of various medium-to-high-temperature high-strength equipment components. The specific models and detailed parameters are as follows:
- Round steel/rod specifications: 4Cr14Ni14W2Mo-Φ (diameter) × L (length), with diameters ranging from 5mm to 300mm and standard lengths of 6000mm. Customized cutting is available upon request (minimum cut length: 50mm). Precision grades include standard (±0.5mm), precision (±0.1mm), and ultra-precision (±0.05mm), suitable for high-temperature shafts, valve cores, and similar applications.
- Plate specifications: 4Cr14Ni14W2Mo-δ (thickness) × W (width) × L (length), with thickness ranging from 3mm to 50mm, standard widths of 1000mm, 1220mm, and 1500mm, and customizable lengths including 2000mm and 3000mm. Surface treatments such as annealing, pickling, and passivation are available, making it suitable for manufacturing high-temperature equipment linings, valve housings, and related components.
- Forged parts specifications: 4Cr14Ni14W2Mo alloy, dimensions ranging from 100×100×100mm to 600×600×600mm (length×width×height). Customized forgings are available. Through multi-pass hot working, the grains are refined to achieve superior high-temperature strength and microstructural stability, making them ideal for manufacturing large valve bodies, high-temperature reactor components, and other integral parts.
- Pipe specifications: 4Cr14Ni14W2Mo-Φ (outer diameter) × δ (wall thickness) × L (length), with outer diameters ranging from 10mm to 200mm and wall thicknesses from 1mm to 15mm. The standard length is 6000mm, and custom cutting is available. This pipe is suitable for medium-and high-temperature fluid transmission pipelines, high-temperature valves, and pipe fittings.
- Compliance standards: GB/T 1220-2021 "Stainless Steel Bars", GB/T 4237-2015 "Hot-rolled Stainless Steel Plates and Strips", and equivalent specifications for martensitic aging stainless steel. Material certificates, smelting reports, and third-party inspection reports are available upon request.
- Chemical composition (mass percentage,%): C ≤0.08, Si ≤0.80, Mn ≤0.80, P ≤0.030, S ≤0.020, Cr 13.00-15.00, Ni 13.00-15.00, W 1.50-2.50, Mo 0.80-1.20, Cu ≤0.30, N ≤0.05, total other impurities ≤0.30. High chromium ensures corrosion resistance, nickel stabilizes austenite transformation, tungsten and molybdenum synergistically enhance high-temperature strength, and the combined ratio of these four elements endows the steel with core high-performance properties.
- Heat treatment parameters: ① Solution treatment: Temperature 1050-1100°C, holding time 2-3 hours, oil-cooled or air-cooled. The resulting microstructure is supersaturated austenite with hardness ≤280HBW, suitable for machining. ② Aging treatment: Temperature 500-550°C, holding time 4-6 hours, air-cooled. Intermetallic compounds precipitate during aging, increasing hardness to HRC40-45 for strength enhancement. ③ Annealing treatment: Temperature 850-900°C, holding time 2-4 hours, furnace-cooled. Post-annealing hardness ≤240HBW, eliminating processing stresses and optimizing microstructural stability.
The 4Cr14Ni14W2Mo product features a well-defined appearance and stringent precision control: The round steel/rod surfaces exhibit uniform silver-gray metallic luster, free from oxide scale accumulation, cracks, inclusions, or porosity defects. With excellent diameter consistency and no visible bending deformation, the precision-grade product achieves a surface roughness of Ra≤0.8μm. The sheet metal surfaces are smooth and flat, with no burrs on the edges and neat cutting surfaces, maintaining dimensional deviations within ±0.05mm. Forged parts display uniform forging marks without flash or cracks. The pipe inner walls are smooth and burr-free, with uniform outer diameter and wall thickness, free from oval deformation. The overall appearance demonstrates superior quality, showcasing the excellence of refined and formed processes, and is ready for direct use in subsequent precision machining and assembly.
Metallographic analysis reveals that the 4Cr14Ni14W2Mo alloy in its solid solution state exhibits a homogeneous, fine-grained supersaturated austenite structure with grain sizes controlled at ASTM 6-7 level, showing no significant carbide precipitation or segregation. After aging treatment, the microstructure transforms into a martensite matrix with dispersed intermetallic compounds (Ni₃Mo, Ni₃W, etc.), where precipitate phases measure ≤0.1μm in size, exhibit uniform distribution, and show no intergranular corrosion tendency. Through vacuum self-consumption remelting, the steel achieves complete removal of internal impurities, with defects such as shrinkage cavities and porosity occurring at an extremely low rate. The density reaches over 99.9%, and impurity inclusions measure ≤Φ0.2mm, ensuring components remain failure-free under long-term medium-high temperature and high-strength operating conditions, thereby guaranteeing stable equipment performance.
- Hardness: Solid solution hardness ≤280HBW, annealed hardness ≤240HBW, suitable for mechanical processing and forming; after aging treatment, the hardness stabilizes at HRC40-45 with uniform distribution and deviation within ±1HRC. Surface strengthening treatments (e.g., nitriding) can further enhance the hardness to above HRC50, improving wear resistance.
- Mechanical properties (post-aging): At room temperature, tensile strength ≥1100MPa, yield strength ≥900MPa, elongation at break ≥15%, reduction of area at break ≥35%, and impact toughness αk ≥50J/cm² (room temperature). At 600°C, tensile strength ≥600MPa, and creep strength (1000h) ≥250MPa. It exhibits excellent balance between strength and toughness at both ambient and high temperatures, capable of withstanding high-intensity loads and minor impacts under moderate to high temperatures.
- High-temperature performance: Capable of long-term operation at temperatures up to 600°C with short-term peak temperatures reaching 700°C. Demonstrates excellent oxidation resistance at 600°C, with a corrosion rate ≤0.015 mm/year. Features outstanding creep resistance, exhibiting a creep elongation rate ≤0.5%/1000h under 600°C and 200MPa loads, effectively resisting plastic deformation at high temperatures to ensure long-term dimensional stability of components.
- Corrosion Resistance: Demonstrates excellent corrosion resistance in ambient organic acids, seawater, steam, and medium-concentration (≤10%) acidic or alkaline media, with no significant pitting or crevice corrosion observed. In chlorine-containing environments, its stress corrosion cracking resistance significantly outperforms conventional martensitic stainless steel, achieving a corrosion rate of ≤0.004mm/year after 2000 hours of salt spray testing, making it suitable for complex corrosive conditions.
- Physical properties: Density 7.85g/cm³, melting point 1360-1400℃, thermal expansion coefficient (20-600℃) 15.5×10⁻⁶/K, thermal conductivity (20℃) 17.2W/(m·K). It exhibits excellent thermal stability in medium-high temperature ranges with minimal thermal deformation, making it suitable for temperature cycling and high-precision applications.
- Machining and Welding Properties: The material demonstrates excellent cold and hot workability, enabling operations such as turning, milling, stamping, and bending, with outstanding dimensional stability after forming. It exhibits superior welding performance, compatible with processes like TIG welding and MIG welding. ER410NiMo welding wire is recommended. Thick plates require preheating to 150-200°C before welding, followed by immediate aging treatment to relieve welding stresses and ensure weld zone properties match the base material.
The process employs high-purity alloy materials through a dual-refining system combining electric arc furnace smelting and vacuum self-consumption remelting, with strict control over chemical composition and impurity levels (P≤0.030%, S≤0.020%) to ensure pure steel material and uniform microstructure. Finite element simulation optimizes thermal processing and treatment parameters to prevent grain coarsening and precipitate phase aggregation, effectively eliminating material-related part failure risks at the source. This provides a solid foundation for manufacturing and using components under medium-to-high-temperature and high-strength conditions.
The core advantage lies in its exceptional medium-to-high temperature strength and corrosion resistance. After aging, its tensile strength exceeds 1100MPa, maintaining high strength even at 600°C—over 60% higher than conventional martensitic stainless steel in high-temperature endurance. It also demonstrates outstanding oxidation resistance and creep resistance, enabling long-term adaptation to medium-to-high temperature loading conditions. Its corrosion resistance covers multiple corrosive media without additional treatment, extending service life by 80%-120% and meeting stringent medium-to-high temperature high-strength corrosion requirements.
The product range covers various forms including round steel/bar, plates, forgings, and pipes, with comprehensive standard specifications available across all configurations. Thickness options span from 3mm to 50mm and diameters from 5mm to 300mm. Customized solutions are supported for irregular dimensions and special precision grades (ultra-precision ±0.05mm), along with integrated heat treatment (solid solution + aging) and surface treatments (pickling, passivation, nitriding). These features eliminate the need for additional secondary processing, enabling direct adaptation to design and manufacturing requirements for medium-high temperature high-strength components while reducing processing time and costs.
Engineered for medium-high temperature, high-strength, and corrosion-resistant applications, this solution meets the demands of high-end machinery, aerospace, chemical processing, and valve manufacturing with exceptional adaptability. Its superior machinability and weldability enable the production of complex-shaped, high-strength components, enhancing design flexibility and manufacturing efficiency. The material also withstands harsh conditions including steam exposure, acidic/alkaline environments, and chlorine-containing atmospheres, while excelling in high-temperature/high-pressure and high-strength load scenarios to reduce equipment maintenance costs.
Every batch undergoes rigorous quality control throughout the entire production process, including chemical composition analysis, metallographic structure examination, hardness testing, tensile performance testing (at both room temperature and high temperature), impact toughness testing, corrosion testing (salt spray and acid/alkali), ultrasonic testing (UT), and magnetic particle testing (MT). These measures ensure all specifications comply with GB/T 1220-2021 standards and client requirements. We provide comprehensive test reports, material certifications, and smelting records, with third-party retesting capabilities to guarantee quality assurance and client confidence.
4Cr14Ni14W2Mo is widely used in manufacturing equipment components for medium-high temperature and high-strength corrosion environments due to its exceptional strength, corrosion resistance, and comprehensive mechanical properties. The specific applications are as follows:
This premium material is the core material of high-end high-temperature and high-pressure valves, suitable for manufacturing power plant boiler valves, chemical high-temperature valves, and nuclear auxiliary valves. It can produce core components such as valve cores, stems, bodies, and seats, and is widely used in thermal power plants, nuclear power plants, and chemical reactors. The material can operate stably under high-temperature (600°C) and high-pressure (≥10MPa) conditions, resisting corrosion from high-temperature steam and chemical media. This ensures the valve's sealing performance and service life while reducing leakage risks.
Designed for manufacturing medium-to-high temperature auxiliary components in aerospace applications, this material can produce aircraft engine support brackets, combustion chamber accessories, spacecraft propulsion system piping, and missile structural components. With exceptional high-temperature strength and corrosion resistance, it withstands the extreme temperatures and load impacts encountered during aerospace operations, ensuring flight safety and operational stability. Additionally, it enables lightweight component design, enhancing equipment maneuverability.
Designed for manufacturing high-temperature, high-strength, and corrosion-resistant components in the chemical and petroleum industries, these products include high-temperature and high-pressure reactor linings for chemical plants, high-temperature wear-resistant parts for oil drilling and production equipment, high-strength pipe fittings for oil wells, and chemical fluid transportation pipelines. Capable of withstanding corrosion from acidic/alkaline media, sulfur-containing crude oil, and high-temperature chemical intermediates, they maintain stable performance in high-temperature, high-pressure environments, extend equipment service life, and reduce safety risks in chemical production.
Capable of manufacturing high-strength transmission components and mechanical parts for medium-to-high temperature environments, including gas turbine auxiliary shafts, high-temperature gears, precision screws, and high-temperature resistant hydraulic valve cores. With exceptional strength and wear resistance, these components withstand high-intensity transmission loads and frictional wear under medium-to-high temperature conditions, ensuring stable operation of transmission systems. They enhance the efficiency and reliability of mechanical equipment, meeting the stringent demands of high-end precision machinery.
Beyond its primary applications, 4Cr14Ni14W2Mo is also utilized in manufacturing components for nuclear industry auxiliary equipment, high-temperature and high-strength parts in advanced instruments, and core components of high-temperature sterilization equipment in the food processing sector. It meets the corrosion-resistant requirements of medium-to-high-temperature and high-strength applications across multiple industries, including aerospace, chemical, and precision machinery, providing material support for the efficient operation of various high-end equipment.
