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ASME B16.5 Carbon steel butt weld flanges are available in two designs. The ordinary Api 6A butt welding flange is used for pipelines, while the long alloy steel butt welding flanges are not suitable for pipelines. Therefore, this butt welding flange Asme B16.5 is used in processing plants. Carbon Steel Weld Neck Flanges are suitable for harsh environments as they can withstand extreme temperatures, pressures or other sources of stress.

Butt Weld Flanges Jis 5k are usually provided by stainless steel butt weld flange manufacturers with three faces. Carbon Steel WN Flanges are - flat, convex or RTJ faces. For butt weld pipe flanges up to 400#, the butt weld flange Jis 16k requires a butt weld flange raised face when the standard height is 1/16 inch. For 400# and larger butt weld pipe flanges, standard butt weld flange A105 requires a 1/4" raised face height.

These Carbon Steel Pipe Flanges are connected by welding the pipe to the flange neck. This action helps transfer stress from the flange to the pipe. This also greatly reduces stress concentrations at the bottom of the hub. Butt weld flanges are typically used in applications where high pressure is a factor. The standard requires the inner diameter of the flange to match the inner diameter of the pipe. Carbon Steel WN Flanges with hubs are covered in published specifications in sizes ranging from 1/2" to 96".