Welded butt Weld Pipe Fittings
Product Description
L. V. Overseas is a worldwide recognized Stainless Steel Seamless Honed Tubes Importers & Exporters. Butt weld fittings are available as elbows, tees, caps, reduces and out lets (olets). These fittings are the most common type of welded pipe fitting and are specified by nominal pipe size and pipe schedule. Buttweld fittings use seamless or welded pipe as the starting material and are formed (through multiple processes) to get the shape of elbows, tees and reducers etc. Just as the pipe is sold from Schedule 10 to Schedule 160, butt weld pipe fittings are sold the same way. Welded butt weld fittings are more common in stainless steel due to cost advantage. Sch 10 fittings are also more common in stainless steel butt weld fitting.ry limits.
Typical Applications
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Welding a fitting to the pipe means it is permanently leakproof
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The continuous metal structure formed between pipe and fitting adds strength to the system
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Smooth inner surface and gradual directional changes reduce pressure losses and turbulence and minimize the action of corrosion and erosion
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A welded system utilizes a minimum of space
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Weldability
Good
Welded butt Weld Pipe Fittings specifications
ASTM: A234 WPB
ASME: B16.9, B.11
NACE: MRO175
MSS: SP-83, SP-95
Availability
201, 202, 304, 304H, 316, 316L, 316H,309 , 310, 310S, 321, 317, 317L, 321H, 347, 347H, 904/904L
Key features
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Welded connection offers a more robust connection
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Continuous metal structure adds to the strength of the piping system
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Buttweld fittings with matching pipe schedules, offers seamless flow inside the pipe. A full penetration weld and properly fitted LR 90 Elbow, Reducer, Concentric reducer etc. offers gradual transition via welded pipe fitting.
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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.
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 |