Characteristics and related parameters of submerged arc steel pipe

First, the characteristics of submerged arc steel pipe: submerged arc steel pipe is a kind of ordinary straight seam steel pipe, and its characteristics have been recognized by everyone, so what are its characteristics?

1. The welding process used in submerged arc steel pipe is submerged arc welding technology, which uses filler welding and particle protection flux submerged arc.

2. The production process of submerged arc steel pipe includes JCOE forming technology and coil forming submerged arc welding technology. When the diameter is large, two steel plates may be used for coiling, which will form a double weld phenomenon.

3. The standards that submerged arc steel pipe can implement are GB/T3091-2008 low-pressure fluid steel pipe production standard, GB/T9711.1-2-1997 petroleum gas steel pipe production and use standard, and API5L pipeline steel pipe implementation standard.

4. The material of submerged arc steel pipe is Q195A-Q345E; 245R; Q345QA-D; L245-L485; X42-X70. The pressure parameters are mainly 2ST/T, S is the yield strength, and T is the wall thickness.

5. Now submerged arc welding has developed into double-wire submerged arc welding and multi-wire submerged arc welding, and the efficiency is further improved. It is widely used in steel structures, piling, fluid transportation, long-distance pipelines, and other places.

Second, the relevant parameters of submerged arc steel pipes:

Production range: 325mm-1420mm; production wall thickness: 7mm-80mm; production material: Q195A-Q345E; 245R; Q345QA-D; L245-L485; X42-X70. ; Production process: JCOE molding, three-roller coiling molding; pressure: 2ST/TS is the yield strength, T is the wall thickness; protective layer: anti-rust paint.