Stainless Steel 304 Flat Welding Flange Introduction
Stainless Steel 304 Flat Welding Flange, also known as Flange Sheet or Flange Disc, etc., varies by region in terms of naming.
The 304 flat welding flange is a common material in stainless steel flanges, with a density of 7.93 g/cm3, also known as 18/8 stainless steel in the industry. It features excellent machinability and high toughness, and is widely used in the industrial, furniture decoration, and food industries at high temperatures up to 800 degrees.

Features of 304 Stainless Steel Flat Weld Flange
Aesthetically pleasing, with a smooth and flat surface, highly resistant to **acid and alkali** and **corrosion**, and strong tactile properties.
Specification Model
DN15-DN2000
Pressure Grade
PN2.5,PN6,PN10,PN16,PN25,PN40,PN63,PN100;
Sealing Surface Type
Full Face Flanged Plate (FF), Raised Face Flanged Plate (RF)
Stainless Steel 304 Flat Welding Flange Material
Common marking methods in the market include 06Cr19Ni10, SUS304, where 06Cr19Ni10 generally indicates production according to the national standard, 304 usually indicates production according to the ASTM standard, and SUS 304 indicates production according to the Japanese standard.
Execution Standards
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
We offer a range of flange series standards, including Japanese, German, and more.***
Connection Type
First, insert the steel pipe into the inner diameter of the flange and perform a single-sided weld; then, tighten the flange on both sides using bolts.
Production Process
Pure material forging, full forging, high-precision CNC turning, CNC arm drilling.
Advantages of 304 Stainless Steel Flat Weld Flange
Excellent corrosion and thermal resistance, low-temperature strength, and mechanical properties; good for hot working processes such as stamping and bending, without hardening after heat treatment (operating temperature range: -196℃ to 800℃).
2: Corrosion in the atmosphere; in industrial atmospheres or heavily polluted areas, timely cleaning is required to avoid corrosion.
3: Suitable for food processing, storage, and transportation. Features good processing properties and weldability.
Procurement Recommendations
1: Suggest purchasing from a reputable stainless steel flange manufacturer with a certain production scale.
2: manufacturers of flanges need to provide material inspection reports and related documents for flat焊接 flanges.
3: Flat welding flanges must have corresponding specification and model steel stamps and markings.































