Slip on Flange
Product Description
Slip on flange also named as SO flange. SO flanges slip over pipes and are designed to bit slightly bigger on the inside than the pipe. They connect to the pipe through a fillet weld at the flange top and bottom. It is used to insert the pipe into the inner hole of flange, as the flange inner diameter is little bigger than the pipe’s outer diameter, pipe and flange could be connected by lap welding at the top and bottom of the flange.
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
Corrosion Resistance
Very Good
Machinability
Good / fair.
Slip on Flange specifications
Common outer diameters: 1/2 inch to 24 inch.
Special customized diameters: up to 60”.
Material Types: Stainless Steel, Alloy Steel, Carbon Steel
Class range: Class 150 to 2500. PN 2.5 to PN 250.
Flange face type: RF, RTJ
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 |