Butt Weld Pipe Fitting

Products

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

    • Welding a fitting to the pipe means it is permanently leakproof

    • The continuous metal structure formed between pipe and fitting adds strength to the system

    • Smooth inner surface and gradual directional changes reduce pressure losses and turbulence and minimize the action of corrosion and erosion

    • A welded system utilizes a minimum of space

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. 

Butt Weld Pipe Fitting 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

    • Welded connection offers a more robust connection

    • Continuous metal structure adds to the strength of the piping system

    • 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.

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

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.