WELDING NECK FLANGES MANUFACTURER
In addition to our wide range of standard products in compliance with DIN, EN, NF, BS, ASME/ANSI or API, we manufacture and deliver special parts according to customer specification. Whether you need machined flanges or fittings, – we provide the individually designed solution.
These flanges attach by welding the pipe to the neck of the flange. This transfers stress from the flange to the pipe instead. It also reduces the stress concentration from the base of the hub. Welding Neck Flanges are often used for applications where high pressure is a factor.
WELDING NECK FLANGES CATEGORIES
Weld Neck Pipe Flanges are typically provided with a raised face, flat face, or RTJ facing. When a raised face is necessary for weld neck pipe flanges, the standard height is 1/16″ for weld neck pipe flanges under 400#. For weld neck pipe flanges of 400# and up, the standard weld neck pipe flange raised face height is 1/4″.
ASME | ASTM MATERIAL SPECIFICATION
- Carbon Steel: ASTM/ASME A105, A350 LF1, LF2, A266, A694, A765 Gr2
- Alloy Steel: ASTM/ASME SA182 F1, F5, F9, F11, F12, F22, F51, A350- LF3
- Stainless Steel: ASTM/ASME SA182 F304, 304L, F316, 316L, F310, F317L, F321, F347
- Duplex Stainless Steel: ASTM / ASME SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
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