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Welding Neck Flange

Factory F316/F316L Stainless Steel/carbon steel Weld Neck Flange Forged Flange

Place of Origin:China
Brand Name:Jinhongda
Model Number:1/2"-72"
Certification:ISO CE
Standard:ANSI, bs, ISO, JIS, ASME, ANSI/ASME B16.5
Flange Type:SO, Weld Neck, Blind, Socket Welding
Finishing:transparent oil, rust-proof oil, hot g
Type:Forged Flange
Minimum Order Quantity:1
Packaging Details:Pallet/Wooden Case
Delivery Time:To be negotiated
Payment Terms:transfer or letter of credit
Supply Ability:1000000 Piece/Pieces per Month Weld neck flange

Butt-welding flange is a kind of pipe fittings, which refers to the flange with neck and round pipe transition and connected with pipe butt welding.

Because of the transition structure and butt welding connection of the cone neck, the strength and rigidity of the flange are strengthened, and the sealing performance is better than that of the flat welding flange. The disadvantage is that it needs to be made of forgings, which consumes a lot of materials and costs a lot of manufacturing. Suitable for occasions with high pressure and temperature or high sealing requirements



Butt-welding flange is not easy to deform, sealed well, and widely used, with corresponding rigidity and elasticity requirements and reasonable butt welding thinning transition. The distance between the welded junction and the joint surface is large, and the joint surface is free from welding temperature deformation. It adopts a relatively complex trumpet shape structure, which is suitable for pipelines with large pressure or temperature fluctuations or high temperature, high pressure and low temperature pipelines. It is generally used for the connection of pipelines and valves with PN greater than 2.5MPa; It is also used in pipelines conveying expensive, flammable and explosive media.

Competitive Advantage

Gongyi Jinhongda Pipeline Co., Ltd. has been committed to becoming the preferred supplier of various high-quality drinking water and drainage pipes and joints. With years of good long-term cooperation with state-owned steel plants, our own warehouses are equipped with a large number of inventories to ensure that we can provide customers with various pipeline options. It operates more than 100 varieties, with an annual sales volume of 200000 tons and a perennial stock of more than 5000 tons.

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