Stainless Steel 316 Flat Weld Flange Brief Introduction
Stainless steel 316 flat welding flange, also known as flange plate or flange disc, etc., varies by region in terms of naming.
316 welding flange sheet, with added Mo, exhibits excellent corrosion resistance, atmospheric corrosion resistance, and high-temperature strength, suitable for use under severe conditions; possesses good work-hardening properties (non-magnetic); high-temperature strength enhanced; non-magnetic in solution state; cold rolled product with good luster and attractive appearance; relatively more expensive than 304 stainless steel welding flange.
Stainless steel 316 flat welding flange sheet, with the addition of Mo element, significantly improves its corrosion resistance and high-temperature strength. It can withstand temperatures up to 1200-1300 degrees Celsius, making it suitable for use under harsh conditions.

Features of 316 Stainless Steel Flat Weld Flange
High corrosion resistance, high-temperature tolerance, strong acid and alkali resistance, excellent corrosion prevention, and robust texture and performance.
Specification Model
DN15-DN2000
Pressure Rating
PN2.5,PN6,PN10,PN16,PN25,PN40,PN63,PN100;
Sealing Surface Type
Full Face Flanged Plate (FF), Raised Face Flanged Plate (RF)
Stainless Steel 316 Flat Weld Flange Material
316、316L、0Cr17Ni12Mo2
Standard of Execution
Chemical Industry Standard: HG/T20592-2009
National Standards: GB/T9119-2010, GB/T2555-81
Mechanical Department Standards: JB/T81-94, JB/T74-94, JB/T75-94
Available with Japanese, German, and other series flange standards.
Connection Type
First, insert the steel pipe into the inner diameter of the flange and perform a single-sided weld; then, tighten it from both sides using bolts.
Production Process
Pure forging, full forging, high-precision CNC turning, CNC indexing drill boring.
Advantages of 316 Stainless Steel Flat Weld Flanges
1: Stainless Steel 316 flat weld flange, due to the addition of Mo, exhibits excellent corrosion resistance, atmospheric corrosion resistance, and high-temperature strength, making it suitable for use under harsh conditions; possesses good work-hardening properties (non-magnetic); high-temperature strength enhanced; non-magnetic in solution state; cold rolled products have a good luster and look attractive; relatively more expensive than 304 stainless steel.
Stainless Steel 316 flat welding flange sheets, with the addition of Mo element, significantly enhance their corrosion resistance and high-temperature strength. They can withstand temperatures up to 1200-1300 degrees Celsius, making them suitable for use under harsh conditions.
Application: Equipment for use in seawater, chemicals, dyes, papermaking, oxalic acid, fertilizers, etc.; photographic, food industry, coastal facilities, ropes, CD poles, bolts, nuts.
Procurement Recommendations
1: Recommend purchasing from a reputable stainless steel flange manufacturer with a certain production scale.
2: manufacturers of flanges are required to provide material inspection reports and other relevant documents for flat welding flanges.
3: Flat welding flanges must have corresponding specification and model steel stamps and markings.































