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
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food and food processing industries.
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sewage and water treatment plants.
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risers for oil platforms and pipelines.
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ships and marine equipment.
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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
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Nice corrosion resistance
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Good abrasion resistance
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Low magnetism
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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 |