How To Choose A Stainless Steel Flange

By Author: Jeeten Gupta
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A flange is a cast ring that is designed to connect sections of a pipe or any other machinery that requires a connecting joint. Before confirming your order, it is important to note that these flanges come in different sizes, diameters, shapes & measurements.

Important to note the diameter of pipes needed. Also, knowing whether these pipes are seamless or welded, would help suit the requirement. As for stainless steel pipe flanges, discs & rings attach to the pipe in order to increase support or strength. These are usually welded or screwed to the pipe end. These pipes flanges are designed according to specifications & could be customized by buyers, making more sense than shopping for the standard products.

ASME B 16.5 covers pressure-temperature ratings, marking, materials, dimensions & methods of designating openings for pipe flanges. The standard ASME B16.5 only covers a small size up to 24 inches, for bigger sizes the ASME B16.47 standard covers a larger diameter of pipe flanges, making it more reliable to clients.

Flanges Specifications
Specifications for Flanges.

Specifications ASTM ...
... A182 / ASME SA182
Size 1/8″ NB TO 24″ NB
Standards ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Class / Pressure 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Standard ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Grades S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
About Stainless Steel Flange
Girish Metal specializes in trading and supplying a quality array of Flanges. Our Flanges are manufactured and tested as per globally approved quality standards under the strict supervision of highly qualified experts. Flange used to connect the pipe with various equipment and valves. We manufacture a variety of flanges that generally come with Flat Face, Raised Face, and Ring Joint (RTJ) Flange faces.

Available in various shapes in terms of their measurements & field of application. All you need to do is choose your product based on set needs & standards. When it comes to which materials should be used in your applications the following factors come into play & therefore, some important aspects that need to be considered while buying stainless steel flanges are as follows:-

SELECTION OF VARIOUS TYPES OF SS FLANGES AVAILABLE IN MARKET:

SS Slip-on Flanges

The most reasonable type is available. Having a larger diameter than the pipe, slipping easily over the pipe. Applied in applications engaging in low pressure. When cost or space is an issue, this type is used instead of a weld neck.

SS Weld Neck Flanges

Significant due to the projecting necks, considered for severe service conditions such as sub-zero or high temperature/ pressure. The bore of the pipe & the flange match, making the strongest connection, reducing turbulence & erosion.

SS Blind Flanges

Ideal for the piping system, requiring regular inspection. Handling high stress caused due to internal pressure & pressure of the liquid flowing through the pipe. Used to 'blank off' pipelines, valves, etc.

SS Threaded Flanges

Assembled without welding & hence, can be removed easily. Not necessarily used for applications where bending stresses, involving high temperature or pressure. A seal weld is used in conjunction with times. To make it cost-effective, this could be supplied without a hub, or in treated coated carbon steel.

SS Lap Joint Flanges

A type of slip-on flange. Helps in the maintenance of low alloy steel/ carbon pipes. These flanges are seen to be very similar to slip-on flanges but are characterized by the rounded interior edge of the flange face.

SS Socket -Weld Flanges

Smaller diameter handling applications with high pressure such as steam lines. Possess internal welds, ensuring durability. The bore of the pipe & the flange match thus providing, good flow connection.

SS Orifice Flanges

To provide access to a line for metering liquids or gases. The range of orifice flanges covers all standard sizes & range & is common to all flange materials.

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More Resources
Stainless Steel round Bars
Stainless Steel Bright Bars
SS Sheets, Plates & Coils
Stainless Steel Pipes and Tubes