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Tianjin Wanlei Steel Pipe Co.,Ltd
TEL: 86-22-65815991
FAX: 86-22-25343802
CELL: 86-18526839451, 86-18526839452
EMAIL: admin@wanleipipe.com
WEBSITE: www.seamlesscarbonsteelpipe.com
ADD: Room 403, Unit 1, Building 31, Polar Square, Central Business District, Binhai New Area, Tianjin, China (Mainland)
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Welding Fittings
Welding fittings include carbon steel welding fittings, alloy steel welding fittings, stainless steel welding fittings. WANLEI supply welding fittings, such as elbow, return, tee, reducer, cap, outlets, stub ends, laterals
Description
WELDING FITTINGS
Carbon steel welding fittings are manufactured from seamless steel tubing and furnished in accordance with ASTM Standard A-234, with material specifications in accordance with ASTM A-106, Grade B, for fittings made from pipe; ASTM A-515, Grade 65 or 70, for fittings made from plate.
Alloy steel welding fittings are furnished in accordance with ASTM standard A-234, with materials specification including A-335, Grade P1, carbon-molybdenum, and Grade P12, P11, P22, P5, P7; P9 chrome molybdenum, for fittings made from pipe.
ASTM A-204 Grade B, carbon molybdenum, and ASTM A-387 Grades 12, 11, 22, 5, 7, 9 chrome molybdenum for fittings made from plate.
Welding fittings are also available in accordance with ASTM specification A-420 covering low-temperature service, down to -101°C.
Stainless steel welding fittings are manufactured and available in the following types: 304, 304L, 316, 316L and 347. They are furnished in accordance with ASTM Standard A-403, with material specifications to ASTM A-312 covering fittings made from pipe, and A-240 for fittings made from plate.
Carbon steel pipe fittings
Stainless steel pipe fittings
Butt welding ends ASME/ANSI B16.9
For fittings with wall thickness equal to that of the pipe to which they are to be welded.
Nominal Wall Thickness (T) | End Preparation |
Less than x* | Cut square or slightly chamfer |
x* to 22mm | Plain bevel as in sketch |
More than 22mm | Compound bevel as in sketch |
x*=5mm for carbon steel or ferritic alloy steel and 4mm for austenitic alloy steel. | |
Size ranges ASME/ANSI B16.9
The following size ranges of Welding Fittings are covered by ANSI B16.9. “Steel Butt-Welding Fittings.”
90 DEG long radius elbows | 1/2” to 48” incl. |
45 DEG long radius elbows | 1/2” to 48” incl. |
90 DEG long radius reducing elbows | 2” to 24” incl. |
Tee, straight and reducing outlets | 1/2” to 48” incl. |
Crosses, straight and reducing outlets | 1/2” to 48” incl. |
Welding caps | 1/2” to 48” incl. |
Lap-joint stub ends | 1/2” to 24” incl. |
Welding reducers | 3/4” to 48” incl. |
Long radius return bends | 1/2” to 24” incl. |
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