Straight Tee Stainless Steel Butt-welding Fittings
Stainless Steel Butt-Welding Fittings are the most common type of welded pipe fitting and are specified by nominal pipe size and pipe schedule.
Description

Butt-weld fittings use seamless or welded pipe as the starting material and are forged (through multiple process) to get he shape of elbows, tees and reducers etc.

Pipe Fittings End Beveling
Fittings may be made to special dimensions, sizes,shapes, and tolerances by agreement between the manufacturer and the purchaser. Welding Bevel acc. to
ASME B16.9, Factory-Made Wrought Steel Buttwelding Fittings
ASME B16.28, Buttwelding Short Radius Elbows and Returns
ANSI/ASME B16.25, Buttwelding Ends
MSS SP-97, Socket Welding, Threaded, and Buttwelding Ends
Bevelled Ends
The ends of all buttweld fittings are bevelled, exceeding wall thickness 4 mm for austenitic stainless steel, or 5 mm for ferritic stainless steel. The shape of the bevel depending upon the actual wall thickness. This bevelled ends are needed to be able to make a "Butt weld".
Materials & Specifications
Material | Grade |
Stainless Steel | 304/304L, 316/316L, 304H, 316H, 309, 310S, 317L, 321/321H, 347/347H, 904L, DUPLEX 2205 / SUPER DUPLEX 2507 |
Chrome Moly | WP5, WP9, WP11, WP12, WP22 |
Carbon Steel | WPB, WPC, WPL6 |
High Yield Carbon Steel | WPHY42, WPHY52, WPHY65 |
Nickel Alloys | Alloy 20, 200, 201, 400, 600, 625, 800H/HT, 825, 254SMO, AL6XN, C276, C22, B3, HAST-X |
1 Standard Grades: Carbon, Stainless, Chrome Moly, High Yield, Low Temperature, Aluminum
2 Types: Elbows, Tees, Reducers, Caps, Stub Ends, Crosses, Laterals, Olets, Return Bends
3 Sizes: Standard 1/2" to 48" (special order larger O.D. fittings)
4 Wall Sizes: Schedule 20 thru XXH, and Special Wall Sizes
5 Specialty Items: 3D & 5D Bends, Galvanizing, 100% X-ray Testing
Forged Steel buttweld fittings are manufactured in accordance with ANSI / ASME B16.9.

Welding Bevel acc.to ASME / ANSI B16.9 and ASME / ANSI B16.28
ASME B16.25 covers the preparation of buttwelding ends of piping components to be joined into a piping system by welding. It includes requirements for welding bevels, for external and internal shaping of heavy-wall components, and for preparation of internal ends (including dimensions and dimensional tolerances).
Our in-hourse R&D team developed bevel ends equipment are good using in thickness 2mm to 20mm pipe fittings, guarantee high efficiency and high quality.

Stainless buttweld fittings are available in 316 and 304 grades.
Types: Caps - Crosses - Elbows - Reducers - Stub Ends - Tees
Sizes: 1/2" - 36" +
Schedules: S/5s - XXH
Alloys: Aluminum - Carbon - Nickel Alloys - Stainless
304/304L (UNS S30400/S30403)
Chemical Composition%
C | Cr | Mn | Ni | P | S | Si |
MAX | – | MAX | – | MAX | MAX | MAX |
0.035 | 18.0- 20.0 | 2 | 8.0-13.0 | 0.045 | 0.03 | 1 |
Tensile Requirements
Tensile Strength: (KSI) = 60
Yield Strength: (KSI) = 35
(KSI converts to MPA {Megapascals} by multiplying by 6.895)
316/316L (UNS S31600/S31603)
Chemical Composition%
C | Cr | Mn | Mo | Ni | P | S | Si |
MAX | – | MAX | – | Max | MAX | MAX | |
0.035 | 16.0- 18.0 | 2 | 2.0-3.0 | 10.0-14.0 | 0.045 | 0.03 | 1 |
Tensile Requirements
Tensile Strength: (KSI) = 70
Yield Strength: (KSI) = 25

A pipe fitting is defined as a part used in a piping system, for changing direction, branching or for change of pipe diameter, and which is mechanically joined to the system. There are many different types of fittings and they are the same in all sizes and schedules as the pipe.




Stainless steel Butt weld pipe fittings allow for changing the direction of flow, reducing pipe sizes and attaching industry equipment.
A common example using stainless steel welded pipe fitting is a pipe reduced by concentric reducer, welded to a weld neck flange and connected to an equipment. Figure below represent complete collection of butt welded pipe fitting

The package is standard wooen cases or pallets, usually we can mix loading or set up loading to save the container space, it depends on the customers
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