Weld Neck Flange

We are manufacturer of weld neck flange in kinds of materials such as carbon steel, stainless steel, alloy steel.
Weld neck flanges are installed by welding the pipe to the neck of the flange. This allows for the transfer of stress from the flange to the pipe itself. This also reduces high stress concentration at the base of the hub. Weld necks are often used for high pressure applications. The inside diameter of this attachment is machined to match the inside diameter of the pipe.

Feature

Pressure: 150# – 2500#
Size: from ½” (15 NB) to 24″ (1200NB)
Material: ASTM A105 F1/ F5/F9/F11/F22/F91.304/310/316/321/347 Nickel 200/201, Monel , Inconel, Hastelloy C 276
Surface treatment: Transparent oil, rust-proof black oil or hot galvanized
Standard: ANSI ASME JIS DIN