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16Cr20Ni4Si2
16Cr20Ni4Si2 is an optimized austenitic heat-resistant stainless steel engineered for high-temperature applications. Featuring a precisely balanced composition of chromium (Cr), nickel (Ni), and silicon (Si), it delivers exceptional high-temperature oxidation resistance, corrosion resistance, and structural stability, making it particularly suitable for medium-to-high temperature corrosive environments. Manufactured using premium sponge chromium, electrolytic nickel, and high-purity ferrosilicon through an arc furnace smelting and vacuum refining process, this material maintains precise chemical composition with ultra-low impurity levels (P≤0.040%, S≤0.030%). Its uniform microstructure ensures stable austenite matrix without segregation. Key characteristics include: long-term service temperatures up to 800°C and short-term tolerance of 900°C. High-temperature exposure rapidly forms a Cr₂O₃-SiO₂ composite passivation film that effectively resists oxidation and carburizing erosion. With excellent mechanical properties at both ambient and high temperatures (tensile strength ≥550MPa, elongation ≥30%), it withstands moderate loads in medium-to-high temperature environments. The material demonstrates outstanding corrosion resistance in acidic/alkaline media, sulfur-containing atmospheres, and seawater, showing no significant pitting or crevice corrosion. Additionally, it offers superior cold/hot workability and weldability, enabling manufacturing of complex-shaped components. Whether for industrial furnace components, chemical corrosion-resistant equipment, or medium-to-high temperature transmission parts, 16Cr20Ni4Si2 provides reliable performance under extreme conditions, making it the preferred choice for heat-resistant stainless steel in corrosive environments.
The 16Cr20Ni4Si2 products showcased here cover a variety of specifications and models, designed to meet the processing and application requirements of different medium-and high-temperature equipment components. The specific models and detailed parameters are as follows:
- Round steel/rod specifications: 16Cr20Ni4Si2-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 applications such as high-temperature shafts and furnace supports.
- Plate/thin plate specifications: 16Cr20Ni4Si2-δ (thickness) × W (width) × L (length), with thickness ranging from 0.5mm to 50mm. Standard widths are 1000mm, 1220mm, and 1500mm, while lengths are available in 2000mm, 3000mm, or as coils (100m per coil). Surface treatments include annealing, pickling, and passivation, suitable for manufacturing components such as furnace lining plates, equipment casings, and high-temperature gaskets.
- Forged parts specifications: 16Cr20Ni4Si2 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 furnace components, high-temperature reactor heads, and other integral parts.
- Pipe specifications: 16Cr20Ni4Si2-Φ (outer diameter) × δ (wall thickness) × L (length), with outer diameters ranging from 10mm to 200mm and wall thicknesses from 1mm to 15mm. Standard length is 6000mm, with customizable cutting options. Suitable for medium-and high-temperature fluid pipelines, chemical corrosion-resistant fittings, and other processing requirements.
- Compliance standards: Refer to GB/T 1220-2021 "Stainless Steel Bars" and GB/T 4237-2015 "Hot-rolled Stainless Steel Plates and Strips", with equivalent compliance to similar austenitic heat-resistant steel industry specifications. Material certificates, smelting reports, and third-party inspection reports are available upon request.
- Chemical composition (mass percentage,%): C ≤0.20, Si 1.50-2.50, Mn ≤1.50, P ≤0.040, S ≤0.030, Cr 19.00-22.00, Ni 3.00-5.00, Cu ≤0.50, N ≤0.10, total other impurities ≤0.30. The high chromium content ensures oxidation resistance, the appropriate nickel stabilizes the austenite matrix, and silicon enhances the passivation film. These three elements synergistically endow the steel with core high-performance properties.
- Heat treatment parameters: ① Solution treatment: 1050-1080°C, 2-3 hours, water quenching or air cooling. The resulting microstructure is single-phase austenite with hardness ≤187HBW, enhancing machinability and corrosion resistance. ② Annealing: 850-900°C, 2-4 hours, furnace cooling. Post-annealing hardness ≤179HBW, eliminating work hardening and optimizing microstructural stability. This austenite-based steel is not suitable for aging strengthening treatment.
The 16Cr20Ni4Si2 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 components display uniform forging marks without flash or cracks. The pipes feature smooth inner walls without burrs, uniform outer diameters and wall thicknesses, and no 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 16Cr20Ni4Si2 solid solution steel exhibits a homogeneous, fine single-phase austenite microstructure with grain sizes controlled at ASTM 6-7 level. No significant carbide precipitation or segregation is observed, demonstrating excellent microstructural stability. After prolonged service at 800°C, the austenite matrix remains intact, with only minor dispersed carbides uniformly distributed and no intergranular corrosion tendency. The vacuum refining process effectively removes internal impurities, resulting in extremely low occurrence of defects such as shrinkage cavities and porosity. The density exceeds 99.8%, with impurity inclusions ≤Φ0.3mm, ensuring component failure-free performance under long-term medium-high temperature and corrosive conditions while maintaining operational stability.
- Hardness: Solid solution hardness ≤187HBW, annealed hardness ≤179HBW, with uniform hardness distribution for easy mechanical processing and forming; after surface strengthening treatment (e.g., aluminum infiltration), the surface hardness can be increased to over HBW 300, further enhancing wear resistance.
- Mechanical properties (solid solution state): At room temperature, tensile strength ≥550MPa, yield strength ≥250MPa, elongation at break ≥30%, reduction of area at break ≥45%, and impact toughness αk ≥60J/cm² (room temperature). At 800°C, tensile strength ≥200MPa, and creep strength (1000h) ≥60MPa. It exhibits excellent balance between strength and toughness at both room temperature and high temperatures, capable of withstanding moderate loads and minor impacts under medium-high temperatures.
- High-temperature performance: The long-term operating temperature can reach 800°C, with a short-term peak temperature of 900°C. It exhibits excellent oxidation resistance at 800°C, with a corrosion rate ≤0.01 mm/year. It demonstrates good resistance to medium-carburizing environments, with a carburizing resistance over 1.5 times that of ordinary stainless steel, effectively preventing performance degradation caused by carbon element diffusion under high temperatures.
- Corrosion resistance: Demonstrates excellent corrosion resistance in common temperature acidic and alkaline media (e.g., 5% sulfuric acid, 10% sodium hydroxide) without significant corrosion phenomena. In sulfur-containing atmospheres and seawater environments, it effectively resists pitting corrosion, crevice corrosion, and stress corrosion cracking. The salt spray test shows a corrosion rate ≤0.003 mm/year after 2000 hours, making it suitable for complex corrosion conditions.
- Physical properties: Density 7.8 g/cm³, melting point 1380-1410°C, thermal expansion coefficient (20-800°C) 16.2×10⁻⁶/K, thermal conductivity (20°C) 16.5 W/(m·K). Exhibits excellent thermal stability in medium-high temperature ranges without significant thermal deformation tendency, suitable for temperature cycling conditions.
- 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. ER309L welding wire is recommended. Thick plates require preheating to 100-150°C before welding, and the material retains excellent performance without post-weld heat treatment. The weld zone exhibits corrosion resistance equivalent to the base material.
Using high-purity alloy materials and a dual process of electric arc furnace smelting combined with vacuum refining, we strictly control chemical composition and impurity content (P, S ≤0.040%) to ensure pure steel material and uniform microstructure. Through finite element simulation, we optimize thermal processing and heat treatment parameters to prevent grain coarsening and carbide precipitation, thereby eliminating material-related part failure risks at the source. This provides a solid foundation for manufacturing and using parts under medium-high temperature and corrosive working conditions.
The core advantage lies in its exceptional medium-and high-temperature oxidation resistance and corrosion resistance. It maintains stable performance even after prolonged service at 800°C, with a highly adhesive oxide film that resists detachment. Additionally, it combines excellent mechanical properties at both room temperature and high temperatures, achieving a balanced match between strength and toughness to withstand moderate loads and temperature cycling. Compared to conventional heat-resistant steel, its carburizing resistance and sulfur corrosion resistance are enhanced by over 30%, with a service life extension of 50%-80%, making it suitable for more stringent medium-and high-temperature corrosive environments.
The product range covers various forms including round steel/bar, sheet/thin plate, forgings, and pipes, with comprehensive standard specifications available across all configurations. Thickness options span from 0.5mm 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 surface treatment services such as pickling, passivation, and aluminum infiltration. These products require no additional secondary processing by customers, enabling direct adaptation to the design and manufacturing needs of medium-and high-temperature equipment components, thereby saving processing time and costs.
Engineered for medium-high temperature and corrosive environments, this solution meets diverse industrial needs across sectors including industrial furnaces, chemical processing, and marine engineering with exceptional adaptability. Its superior machinability and weldability enable manufacturing of complex-shaped components, enhancing design flexibility and production efficiency. The material also withstands harsh conditions such as sulfur-containing atmospheres and acidic/alkaline media without requiring additional corrosion protection, significantly reducing equipment maintenance costs.
Every batch undergoes rigorous quality control spanning the entire production process, including chemical composition analysis, metallographic structure examination, hardness testing, tensile performance evaluation (both at room temperature and high temperature), impact toughness testing, corrosion testing (salt spray and acid/alkali), and ultrasonic testing (UT). These comprehensive procedures ensure all specifications meet industry standards and client requirements. We provide complete test reports, material certifications, and smelting records, with third-party retesting capabilities to guarantee quality assurance and client confidence.
16Cr20Ni4Si2 is widely used in manufacturing equipment components for medium-and high-temperature corrosive environments due to its outstanding oxidation resistance, corrosion resistance, and comprehensive mechanical properties. The specific applications are as follows:
This material is the preferred core material for industrial furnace components, suitable for manufacturing high-temperature parts including furnace lining plates, tubes, door frames, heating element supports, and carburizing furnace components. It is widely used in equipment such as continuous annealing furnaces, waste incinerators, and cement rotary kilns. Capable of stable operation under prolonged high-temperature conditions up to 800°C, it resists high-temperature oxidation and carburizing erosion, ensuring extended service life of furnace components and operational stability of equipment while reducing maintenance frequency.
Designed for medium-and high-temperature corrosion environments in chemical and petroleum industries, this material is used to manufacture chemical reactor shells, corrosion-resistant pipelines, valves, flanges, heat exchanger tube bundles, and other equipment components. It also produces medium-temperature corrosion-resistant piping fittings for oil extraction platforms and oil well liners. Capable of resisting corrosion from acidic/alkaline media, sulfur-containing crude oil, and chemical intermediates, it maintains stable performance under high-temperature and high-pressure conditions. This extends equipment lifespan and reduces safety risks in chemical production.
This material is engineered for marine engineering applications, particularly in high-temperature corrosion-resistant structural components. It is widely used in marine environments, including high-temperature piping systems in ship engine rooms, heat exchangers on offshore platforms, components of seawater desalination plants, and high-temperature support structures in coastal areas. With exceptional seawater corrosion resistance and stable performance at medium-high temperatures, it can withstand prolonged exposure to high-salinity and high-humidity marine conditions, effectively preventing metal corrosion and failure. Additionally, it adapts well to the temperature fluctuations characteristic of marine equipment, thereby extending the service life of marine installations.
The company specializes in manufacturing transmission components and mechanical parts for medium-to-high temperature environments, including gas turbine cylinder liners, medium-temperature gears, high-temperature bearing housings, and hydraulic machinery heat-resistant liners. These products feature excellent mechanical properties and wear resistance, capable of withstanding transmission loads and frictional wear under medium-to-high temperature conditions. This ensures stable operation of transmission systems while enhancing the efficiency and reliability of mechanical equipment.
Beyond its primary applications, 16Cr20Ni4Si2 is also utilized in manufacturing auxiliary heat exchanger components for nuclear reactors, corrosion-resistant medium-to-high temperature parts for high-end instruments, and high-temperature sterilization equipment components for the food processing industry. It meets the medium-to-high temperature corrosion requirements of various sectors including industrial furnaces, chemical processing, and marine engineering, providing material support for the efficient operation of high-end equipment.
16Cr20Ni4Si2 is an optimized austenitic heat-resistant stainless steel engineered for high-temperature applications. Featuring a precisely balanced composition of chromium (Cr), nickel (Ni), and silicon (Si), it delivers exceptional high-temperature oxidation resistance, corrosion resistance, and structural stability, making it particularly suitable for medium-to-high temperature corrosive environments. Manufactured using premium sponge chromium, electrolytic nickel, and high-purity ferrosilicon through an arc furnace smelting and vacuum refining process, this material maintains precise chemical composition with ultra-low impurity levels (P≤0.040%, S≤0.030%). Its uniform microstructure ensures stable austenite matrix without segregation. Key characteristics include: long-term service temperatures up to 800°C and short-term tolerance of 900°C. High-temperature exposure rapidly forms a Cr₂O₃-SiO₂ composite passivation film that effectively resists oxidation and carburizing erosion. With excellent mechanical properties at both ambient and high temperatures (tensile strength ≥550MPa, elongation ≥30%), it withstands moderate loads in medium-to-high temperature environments. The material demonstrates outstanding corrosion resistance in acidic/alkaline media, sulfur-containing atmospheres, and seawater, showing no significant pitting or crevice corrosion. Additionally, it offers superior cold/hot workability and weldability, enabling manufacturing of complex-shaped components. Whether for industrial furnace components, chemical corrosion-resistant equipment, or medium-to-high temperature transmission parts, 16Cr20Ni4Si2 provides reliable performance under extreme conditions, making it the preferred choice for heat-resistant stainless steel in corrosive environments.
The 16Cr20Ni4Si2 products showcased here cover a variety of specifications and models, designed to meet the processing and application requirements of different medium-and high-temperature equipment components. The specific models and detailed parameters are as follows:
- Round steel/rod specifications: 16Cr20Ni4Si2-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 applications such as high-temperature shafts and furnace supports.
- Plate/thin plate specifications: 16Cr20Ni4Si2-δ (thickness) × W (width) × L (length), with thickness ranging from 0.5mm to 50mm. Standard widths are 1000mm, 1220mm, and 1500mm, while lengths are available in 2000mm, 3000mm, or as coils (100m per coil). Surface treatments include annealing, pickling, and passivation, suitable for manufacturing components such as furnace lining plates, equipment casings, and high-temperature gaskets.
- Forged parts specifications: 16Cr20Ni4Si2 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 furnace components, high-temperature reactor heads, and other integral parts.
- Pipe specifications: 16Cr20Ni4Si2-Φ (outer diameter) × δ (wall thickness) × L (length), with outer diameters ranging from 10mm to 200mm and wall thicknesses from 1mm to 15mm. Standard length is 6000mm, with customizable cutting options. Suitable for medium-and high-temperature fluid pipelines, chemical corrosion-resistant fittings, and other processing requirements.
- Compliance standards: Refer to GB/T 1220-2021 "Stainless Steel Bars" and GB/T 4237-2015 "Hot-rolled Stainless Steel Plates and Strips", with equivalent compliance to similar austenitic heat-resistant steel industry specifications. Material certificates, smelting reports, and third-party inspection reports are available upon request.
- Chemical composition (mass percentage,%): C ≤0.20, Si 1.50-2.50, Mn ≤1.50, P ≤0.040, S ≤0.030, Cr 19.00-22.00, Ni 3.00-5.00, Cu ≤0.50, N ≤0.10, total other impurities ≤0.30. The high chromium content ensures oxidation resistance, the appropriate nickel stabilizes the austenite matrix, and silicon enhances the passivation film. These three elements synergistically endow the steel with core high-performance properties.
- Heat treatment parameters: ① Solution treatment: 1050-1080°C, 2-3 hours, water quenching or air cooling. The resulting microstructure is single-phase austenite with hardness ≤187HBW, enhancing machinability and corrosion resistance. ② Annealing: 850-900°C, 2-4 hours, furnace cooling. Post-annealing hardness ≤179HBW, eliminating work hardening and optimizing microstructural stability. This austenite-based steel is not suitable for aging strengthening treatment.
The 16Cr20Ni4Si2 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 components display uniform forging marks without flash or cracks. The pipes feature smooth inner walls without burrs, uniform outer diameters and wall thicknesses, and no 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 16Cr20Ni4Si2 solid solution steel exhibits a homogeneous, fine single-phase austenite microstructure with grain sizes controlled at ASTM 6-7 level. No significant carbide precipitation or segregation is observed, demonstrating excellent microstructural stability. After prolonged service at 800°C, the austenite matrix remains intact, with only minor dispersed carbides uniformly distributed and no intergranular corrosion tendency. The vacuum refining process effectively removes internal impurities, resulting in extremely low occurrence of defects such as shrinkage cavities and porosity. The density exceeds 99.8%, with impurity inclusions ≤Φ0.3mm, ensuring component failure-free performance under long-term medium-high temperature and corrosive conditions while maintaining operational stability.
- Hardness: Solid solution hardness ≤187HBW, annealed hardness ≤179HBW, with uniform hardness distribution for easy mechanical processing and forming; after surface strengthening treatment (e.g., aluminum infiltration), the surface hardness can be increased to over HBW 300, further enhancing wear resistance.
- Mechanical properties (solid solution state): At room temperature, tensile strength ≥550MPa, yield strength ≥250MPa, elongation at break ≥30%, reduction of area at break ≥45%, and impact toughness αk ≥60J/cm² (room temperature). At 800°C, tensile strength ≥200MPa, and creep strength (1000h) ≥60MPa. It exhibits excellent balance between strength and toughness at both room temperature and high temperatures, capable of withstanding moderate loads and minor impacts under medium-high temperatures.
- High-temperature performance: The long-term operating temperature can reach 800°C, with a short-term peak temperature of 900°C. It exhibits excellent oxidation resistance at 800°C, with a corrosion rate ≤0.01 mm/year. It demonstrates good resistance to medium-carburizing environments, with a carburizing resistance over 1.5 times that of ordinary stainless steel, effectively preventing performance degradation caused by carbon element diffusion under high temperatures.
- Corrosion resistance: Demonstrates excellent corrosion resistance in common temperature acidic and alkaline media (e.g., 5% sulfuric acid, 10% sodium hydroxide) without significant corrosion phenomena. In sulfur-containing atmospheres and seawater environments, it effectively resists pitting corrosion, crevice corrosion, and stress corrosion cracking. The salt spray test shows a corrosion rate ≤0.003 mm/year after 2000 hours, making it suitable for complex corrosion conditions.
- Physical properties: Density 7.8 g/cm³, melting point 1380-1410°C, thermal expansion coefficient (20-800°C) 16.2×10⁻⁶/K, thermal conductivity (20°C) 16.5 W/(m·K). Exhibits excellent thermal stability in medium-high temperature ranges without significant thermal deformation tendency, suitable for temperature cycling conditions.
- 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. ER309L welding wire is recommended. Thick plates require preheating to 100-150°C before welding, and the material retains excellent performance without post-weld heat treatment. The weld zone exhibits corrosion resistance equivalent to the base material.
Using high-purity alloy materials and a dual process of electric arc furnace smelting combined with vacuum refining, we strictly control chemical composition and impurity content (P, S ≤0.040%) to ensure pure steel material and uniform microstructure. Through finite element simulation, we optimize thermal processing and heat treatment parameters to prevent grain coarsening and carbide precipitation, thereby eliminating material-related part failure risks at the source. This provides a solid foundation for manufacturing and using parts under medium-high temperature and corrosive working conditions.
The core advantage lies in its exceptional medium-and high-temperature oxidation resistance and corrosion resistance. It maintains stable performance even after prolonged service at 800°C, with a highly adhesive oxide film that resists detachment. Additionally, it combines excellent mechanical properties at both room temperature and high temperatures, achieving a balanced match between strength and toughness to withstand moderate loads and temperature cycling. Compared to conventional heat-resistant steel, its carburizing resistance and sulfur corrosion resistance are enhanced by over 30%, with a service life extension of 50%-80%, making it suitable for more stringent medium-and high-temperature corrosive environments.
The product range covers various forms including round steel/bar, sheet/thin plate, forgings, and pipes, with comprehensive standard specifications available across all configurations. Thickness options span from 0.5mm 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 surface treatment services such as pickling, passivation, and aluminum infiltration. These products require no additional secondary processing by customers, enabling direct adaptation to the design and manufacturing needs of medium-and high-temperature equipment components, thereby saving processing time and costs.
Engineered for medium-high temperature and corrosive environments, this solution meets diverse industrial needs across sectors including industrial furnaces, chemical processing, and marine engineering with exceptional adaptability. Its superior machinability and weldability enable manufacturing of complex-shaped components, enhancing design flexibility and production efficiency. The material also withstands harsh conditions such as sulfur-containing atmospheres and acidic/alkaline media without requiring additional corrosion protection, significantly reducing equipment maintenance costs.
Every batch undergoes rigorous quality control spanning the entire production process, including chemical composition analysis, metallographic structure examination, hardness testing, tensile performance evaluation (both at room temperature and high temperature), impact toughness testing, corrosion testing (salt spray and acid/alkali), and ultrasonic testing (UT). These comprehensive procedures ensure all specifications meet industry standards and client requirements. We provide complete test reports, material certifications, and smelting records, with third-party retesting capabilities to guarantee quality assurance and client confidence.
16Cr20Ni4Si2 is widely used in manufacturing equipment components for medium-and high-temperature corrosive environments due to its outstanding oxidation resistance, corrosion resistance, and comprehensive mechanical properties. The specific applications are as follows:
This material is the preferred core material for industrial furnace components, suitable for manufacturing high-temperature parts including furnace lining plates, tubes, door frames, heating element supports, and carburizing furnace components. It is widely used in equipment such as continuous annealing furnaces, waste incinerators, and cement rotary kilns. Capable of stable operation under prolonged high-temperature conditions up to 800°C, it resists high-temperature oxidation and carburizing erosion, ensuring extended service life of furnace components and operational stability of equipment while reducing maintenance frequency.
Designed for medium-and high-temperature corrosion environments in chemical and petroleum industries, this material is used to manufacture chemical reactor shells, corrosion-resistant pipelines, valves, flanges, heat exchanger tube bundles, and other equipment components. It also produces medium-temperature corrosion-resistant piping fittings for oil extraction platforms and oil well liners. Capable of resisting corrosion from acidic/alkaline media, sulfur-containing crude oil, and chemical intermediates, it maintains stable performance under high-temperature and high-pressure conditions. This extends equipment lifespan and reduces safety risks in chemical production.
This material is engineered for marine engineering applications, particularly in high-temperature corrosion-resistant structural components. It is widely used in marine environments, including high-temperature piping systems in ship engine rooms, heat exchangers on offshore platforms, components of seawater desalination plants, and high-temperature support structures in coastal areas. With exceptional seawater corrosion resistance and stable performance at medium-high temperatures, it can withstand prolonged exposure to high-salinity and high-humidity marine conditions, effectively preventing metal corrosion and failure. Additionally, it adapts well to the temperature fluctuations characteristic of marine equipment, thereby extending the service life of marine installations.
The company specializes in manufacturing transmission components and mechanical parts for medium-to-high temperature environments, including gas turbine cylinder liners, medium-temperature gears, high-temperature bearing housings, and hydraulic machinery heat-resistant liners. These products feature excellent mechanical properties and wear resistance, capable of withstanding transmission loads and frictional wear under medium-to-high temperature conditions. This ensures stable operation of transmission systems while enhancing the efficiency and reliability of mechanical equipment.
Beyond its primary applications, 16Cr20Ni4Si2 is also utilized in manufacturing auxiliary heat exchanger components for nuclear reactors, corrosion-resistant medium-to-high temperature parts for high-end instruments, and high-temperature sterilization equipment components for the food processing industry. It meets the medium-to-high temperature corrosion requirements of various sectors including industrial furnaces, chemical processing, and marine engineering, providing material support for the efficient operation of high-end equipment.
