Socketweld Flange

Product Description

SW Flange (Socket Weld Flange) contain a shoulder on the inside of the flange that acts as a guide to set the depth at which the pipe is welded to the flange. They are fabricated by inserting the pipe end into the flange until it bottoms out against the shoulder, and then retracting the pipe 1/8 in before welding it in place. This practice was originally employed to reduce cracking due to thermal stresses in stainless steel superheaters, but over the years has become standard practice for the installation of all socket weld flanges (SW Flange).

Socket Weld Flanges are available in pressure from 150# and up and pipe schedule 40 to schedule 160. Specifying the pipe schedule ensures that ID of the SW Flange matches the ID of pipe for smooth fluid flow.

Typical Applications

  • food and food processing industries.

  • sewage and water treatment plants.

  • risers for oil platforms and pipelines.

  • ships and marine equipment.

  • pharmaceutical industry.

Weldability

Good 

Related material specifications

Bore diameter: 28mm to 900 mm. Internal Diameter Accuracy: H7,H8,H9. Internal Roughness: RA 0.1Mu m – RA 0.2Mu m. 

Availability

Key features

  • Nice corrosion resistance

  • Good abrasion resistance

  • Low magnetism

  • Long working life 

Cut to size capability

We can cut from one off blanks to the largest production run for immediate or just in time deliveries.

Corrosion Resistance

Very Good 

Machinability

Good / fair.

Stainless Steel Seamless Honed Tube specifications

 

 

Chemical Composition (weight %)

C Si Mn P S Tensile strength
kg/mm²
Yield point
kg/mm²
Elongation%
0.25
or
less
0.35
or
less
0.30
0.90
0.040
or
less
0.040
or
less
52 up 39 up 15 up
38 up 22 up 30 up

Mechanical Properties

Grades Delivery Conditions Tensile Strength Rm (Mpa) Elongation in the longitudinal direction Al (%)
St 45 +A (GBK) 390 min 21 min
St 52 +A (GBK) 490 min 22 min
E355 +A (GBK) 450 min 22 min
1020 +A (GBK) 390 min 21 min

All information in our datasheet is based on approximate testing and is stated to the best of our knowledge and belief. It is presented apart from contractual obligations and does not constitute any guarantee of properties or of processing or application possibilities in individual cases. Our
warranties and liabilities are stated exclusively in our terms of trading.