Duplex stainless steel: S31803 is a duplex stainless steel, which means it has a microstructure consisting of both austenite and ferrite phases. This provides it with superior mechanical properties, including higher strength and better resistance to stress corrosion cracking compared to traditional austenitic stainless steels.
Corrosion resistance: Duplex Steel S31803 Weld Neck Flanges offer excellent corrosion resistance, particularly in aggressive environments such as chloride-containing solutions. They are resistant to pitting, crevice corrosion, and general corrosion, making them suitable for use in corrosive media.
High strength: Duplex stainless steels, including S31803, have higher strength compared to austenitic stainless steels, which makes them suitable for high-pressure and high-temperature applications.
Good weldability: Duplex Steel S31803 Weld Neck Flanges can be easily welded to the pipe using butt-welding techniques, which provides a strong and leak-free connection. They do not require pre-weld or post-weld heat treatment, making them convenient to fabricate and install.
Wenzhou Qingyan Technology Co., Ltd. is the Manufacturer and Exporter of stainless steel flange and pipe fitting in the global market. As an ISO 9001:2008 Certified company we follow Total Quality Management Policy that enables us to bring the best possible.
We provide both standard and customized Duplex Steel S31803 Weld Neck Flanges of different pipeline system. Our main products include Welding Neck flange, Slip-on flange, Socket Welding flange, Threaded flange, Blind flange according to ANSI, DIN, JIS, EN, made of ASTM A105, A350, A694, A182, ect.
Drawing of Duplex Steel S31803 Weld Neck Flanges:
Chemical Industry
Petrochemical industry
Marine & Power Transmission industry
Power plants
Energy industries
Furniture
Pharmaceutical processing industry
Modern architecture
Home appliances
Water waste projects
Synthetic fiber
Heat exchanger
Fluid piping
Dairy and food processing
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No.1188, Yongning Road, Yongzhong Street, Longwan District, Wenzhou City, Zhejiang Province, China
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If you have any enquiry about quotation or cooperation, please feel free to email us at qy001@qingyan-tech.com or use the following inquiry form. Our sales representative will contact you within 24 hours. Thank you for your interest in our products.
