Complete specifications, long-term spot wholesale Q235B spiral welded pipe factory direct sales

材质：

Q235B

规格：

219mm以上

质量等级：

正品（受质量异议）

Large-diameter spiral steel pipe Large-diameter spiral steel pipe is a general term, which generally refers to spiral steel pipes with a diameter greater than one meter. Spiral steel pipes are made of steel strips that are bent and then welded.
General material,
Brief description
Large-diameter spiral steel pipe is a general term, generally referring to spiral steel pipes with a diameter greater than one meter. Spiral steel pipes are made of steel strips that are bent and then welded. Steel pipes need to undergo hydraulic pressure, bending, flattening and other experiments, and have certain requirements for surface quality. The delivery length is usually meters, and delivery to fixed length is often required. The specifications of spiral steel pipes are expressed in nominal diameter (mm). The nominal diameter is different from the actual diameter. According to the specified wall thickness, there are two types: ordinary steel pipes and thickened steel pipes.
Material
Commonly used materials in China are,
Purpose
Spiral steel pipe is mainly used in water supply projects, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, and urban construction. It was developed in my country One of the twenty key products. Used for water supply and drainage for liquid transportation. For gas transportation, coal gas, steam, and liquefied petroleum gas are used. It is used as piling pipes for structures, pipes for bridges, wharves, roads, building structures, etc.
., Product Introduction
.Double-wire, double-sided submerged arc welding spiral steel pipe is a method of arc welding under the flux layer, using the heat generated by the arc burning between the welding wire and the flux under the flux layer , formed by melting the wire flux and the base metal.
., Features
.The main features of this product are: first, double-sided submerged arc welding, which not only has a high deposition rate, but also has deep penetration capabilities; second, the arc and welding zone are well protected, and the weld seam It has excellent quality, good density, and the appearance of the weld is flat and smooth, which can meet various performance requirements of the weld.
.. Product implementation standards and uses
.This product implements /, / / standards and is mainly used in common fluid projects such as oil, gas, natural gas, water pipelines, thermal power generation, etc.
., Product specifications
Wall thickness, material grade.