Carbon steel necked welding flange

Carbon Steel Flanged Socket Welding Flange Brief Introduction

Carbon steel flanged welding neck flanges, also known as welding neck flanges, long neck flanges, high neck flanges, etc., vary by region in terms of names;

Carbon Steel Flanged Welding Neck Fitting Features

Non-deformable, sealed well, widely applicable, with corresponding requirements for rigidity and elasticity, and a reasonable welding thinning transition. The weld joint is far from the mating surface, ensuring the mating surface is free from deformation due to welding temperatures.

Model and Specification

DN15-DN4000

Pressure Rating

PN2.5~PN400

Sealing Surface Type

Rounded Face (RF), Flat Face (FF), Milled Face (MFM), Concave Face (FM), Convex Face (M), Tongue and Groove (TG)

The concavo-convex necked weld flanges (MFM) are for matching use.

Carbon steel socket-welding flange material

ASTM A105,20#、Q235、16Mn、ASTM A350 LF1,LF2 CL1/CL2,LF3 CL1/CL2、ASTM A694 F42,F46,F48,F50,F52,F56,F60,F65,F70;

Among the commonly used materials are Q235, 20#, and 16Mn, etc.

Standard Compliance

National standards, Ministry of Chemical Industry standards, Ministry of Machinery standards, American standards, German standards, Japanese standards, and other international standards are widely applied.

Connection Type

Used for welding neck sockets to steel pipes, the other side is secured with bolts and nuts.

Production Process

Our necked socket weld flanges are manufactured through the forging process, known as die forging, which involves placing the heated billet into a die mounted on the forging equipment and shaping it.

Basic Procedures of Die Forging: blanking, heating, pre-forging, finishing forging, trimming, edge cutting, heat treatment, shot blasting.

Advantages of Carbon Steel Socket Weld Flanges

Carbon steel flanged weld necks are suitable for high-pressure pipelines and projects involving flammable and explosive materials due to their good sealing properties.

The socket welding flange is less prone to deformation in welding processes.

Procurement Recommendations

Purchase from a reputable颈对焊法兰 manufacturer with a certain production scale.

2: Manufacturers of flanges need to provide material inspection reports and related documents for carbon steel flanges.

3:颈对焊法兰 must have corresponding specification and model stampings and markings.