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904L Flat Washer | High Corrosion-Resistant Stainless Steel Gasket - FASTOOL Direct from the Manufacturer
Enhance industrial connection reliability by choosing high-quality 904L flat washers from FASTOOL, a professional fastener manufacturer in China. This product is meticulously crafted from high-performance austenitic stainless steel 904L (UNS N08904, 1.4539) material, specifically designed for critical applications in extreme corrosive environments. It is an ideal choice for industries such as chemical, marine engineering, oil and gas, and environmental equipment.
✅ Exceptional Corrosion Resistance: The 904L alloy contains high levels of nickel (Ni), molybdenum (Mo), and copper (Cu), offering significantly superior resistance to pitting and crevice corrosion compared to 316L stainless steel in environments such as dilute sulfuric acid, phosphoric acid, organic acids, chloride solutions, and seawater, effectively preventing stress corrosion cracking.
✅ High mechanical performance: Complies with the Grade HV140 hardness standard, offering an excellent balance of strength and toughness, ensuring stable support under high-pressure and high-load conditions and preventing bolt loosening.
✅ International standard compatibility: Strictly adheres to international standards such as DIN125A, DIN9021, DIN434, ISO7089/7093, ASME B18.22.1, and other international standards, ensuring dimensional accuracy and interchangeability, suitable for global equipment assembly.
✅ Wide range of sizes: Standard sizes range from M5 to M64, with custom sizes available upon request. Production can be flexibly adjusted based on customer drawings or samples to meet special application requirements.
✅ High-quality surface treatment: Provides a bright and clean surface, not only aesthetically pleasing but also reducing impurity adhesion, enhancing sealing performance and assembly smoothness.
✅ Complete traceability: Each batch of products is accompanied by an EN10204-3.1B material certificate, ensuring traceable and controllable material composition and performance, meeting the stringent quality audit requirements of demanding industries.
Item Parameter
Material 904L / 1.4539 / UNS N08904
Standards DIN125A, DIN9021, DIN434, ISO7089, ISO7093, ASME B18.22.1
Size Range M5 - M64 (standard) or customizable per drawing
Grade Grade HV140
Surface Treatment Bright & Clean (bright and clean)
Marking HT&FST or customizable per customer requirements
Certification EN10204-3.1B
Petrochemical and Refining: Reactors, heat exchangers, pipe flange connections
Desalination and Environmental Engineering: Reverse osmosis systems, desulfurization units
Offshore Platforms and Shipbuilding: Seawater cooling systems, deck equipment
Pharmaceutical and Food Industries: Process equipment with high cleanliness requirements
Flue Gas Desulfurization (FGD) Systems: Highly corrosive flue environments
FASTOOL offers OEM/ODM customization services, providing non-standard sizes, special markings, and customized packaging solutions tailored to your specific needs. We offer free sample trials and support small-batch orders to ensure you can quickly verify product performance.
Standard packaging involves bulk loading into boxes, then into cartons, and finally securing them on pallets to ensure safe long-distance transportation. Customized packaging solutions can also be provided upon customer request, including wooden box packaging suitable for maritime transport or special logistics requirements.
As an integrated manufacturer of fasteners combining R&D, production, quality control, and after-sales service, FASTOOL specializes in high-end fastener applications such as nickel-based alloys, duplex steel, and stainless steel. We have a comprehensive quality control system and a responsive customer service team, dedicated to providing global customers with cost-effective, reliable connection solutions.
904L Flat Washer | High Corrosion-Resistant Stainless Steel Gasket - FASTOOL Direct from the Manufacturer
Enhance industrial connection reliability by choosing high-quality 904L flat washers from FASTOOL, a professional fastener manufacturer in China. This product is meticulously crafted from high-performance austenitic stainless steel 904L (UNS N08904, 1.4539) material, specifically designed for critical applications in extreme corrosive environments. It is an ideal choice for industries such as chemical, marine engineering, oil and gas, and environmental equipment.
✅ Exceptional Corrosion Resistance: The 904L alloy contains high levels of nickel (Ni), molybdenum (Mo), and copper (Cu), offering significantly superior resistance to pitting and crevice corrosion compared to 316L stainless steel in environments such as dilute sulfuric acid, phosphoric acid, organic acids, chloride solutions, and seawater, effectively preventing stress corrosion cracking.
✅ High mechanical performance: Complies with the Grade HV140 hardness standard, offering an excellent balance of strength and toughness, ensuring stable support under high-pressure and high-load conditions and preventing bolt loosening.
✅ International standard compatibility: Strictly adheres to international standards such as DIN125A, DIN9021, DIN434, ISO7089/7093, ASME B18.22.1, and other international standards, ensuring dimensional accuracy and interchangeability, suitable for global equipment assembly.
✅ Wide range of sizes: Standard sizes range from M5 to M64, with custom sizes available upon request. Production can be flexibly adjusted based on customer drawings or samples to meet special application requirements.
✅ High-quality surface treatment: Provides a bright and clean surface, not only aesthetically pleasing but also reducing impurity adhesion, enhancing sealing performance and assembly smoothness.
✅ Complete traceability: Each batch of products is accompanied by an EN10204-3.1B material certificate, ensuring traceable and controllable material composition and performance, meeting the stringent quality audit requirements of demanding industries.
Item Parameter
Material 904L / 1.4539 / UNS N08904
Standards DIN125A, DIN9021, DIN434, ISO7089, ISO7093, ASME B18.22.1
Size Range M5 - M64 (standard) or customizable per drawing
Grade Grade HV140
Surface Treatment Bright & Clean (bright and clean)
Marking HT&FST or customizable per customer requirements
Certification EN10204-3.1B
Petrochemical and Refining: Reactors, heat exchangers, pipe flange connections
Desalination and Environmental Engineering: Reverse osmosis systems, desulfurization units
Offshore Platforms and Shipbuilding: Seawater cooling systems, deck equipment
Pharmaceutical and Food Industries: Process equipment with high cleanliness requirements
Flue Gas Desulfurization (FGD) Systems: Highly corrosive flue environments
FASTOOL offers OEM/ODM customization services, providing non-standard sizes, special markings, and customized packaging solutions tailored to your specific needs. We offer free sample trials and support small-batch orders to ensure you can quickly verify product performance.
Standard packaging involves bulk loading into boxes, then into cartons, and finally securing them on pallets to ensure safe long-distance transportation. Customized packaging solutions can also be provided upon customer request, including wooden box packaging suitable for maritime transport or special logistics requirements.
As an integrated manufacturer of fasteners combining R&D, production, quality control, and after-sales service, FASTOOL specializes in high-end fastener applications such as nickel-based alloys, duplex steel, and stainless steel. We have a comprehensive quality control system and a responsive customer service team, dedicated to providing global customers with cost-effective, reliable connection solutions.
