Stainless Steel Flange

Stainless steel flange is a crucial pipe connecting component made of premium stainless steel material.It is used to connect pipes,valves,pumps and other equipment in piping systems,enabling easy installation,disassembly,inspection and maintenance.With outstanding corrosion resistance and high-temperature performance,it is one of the most widely used flange types in industrial piping.

Main Material Grades

Common stainless steel grades include 304,304L,316,316L,321,904L.

304/304L:General anti-rust grade,cost-effective for conventional industrial use.

316/316L:Better acid and alkali corrosion resistance,suitable for chemical,marine and saltwater environments.

904L:Super austenitic stainless steel,for strong corrosion and harsh working conditions.

Common Types

Weld Neck Flange

Slip On Flange

Blind Flange

Socket Weld Flange

Threaded Flange

Lap Joint Flange

Standards&Specifications

Executive standards:ASME B16.5,ASME B16.47,GB/T,DIN,JIS

Pressure class:Class 150,300,600,900,1500,2500

Face type:Raised Face(RF),Flat Face(FF),Ring Type Joint(RTJ)

Size range:1/2 inch to 60 inch,customized size available

Key Advantages

Excellent corrosion and rust resistance,anti-acid,anti-alkali and anti-oxidation.

High tensile strength,stable performance under high temperature and high pressure.

Smooth surface,no rust,long service life,low maintenance cost.

Sanitary and pollution-free,suitable for food,pharmaceutical and drinking water projects.

Good welding and processing performance,easy for construction and installation.

Application Fields

Widely used in petrochemical,oil and gas,marine engineering,water treatment,food beverage,pharmaceutical,power plant,environmental protection and pipeline engineering,especially for corrosive medium transmission and outdoor humid working conditions.