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The caliber range of welded steel pipes is very wide. The specific caliber models vary according to different standards (such as national standard GB, American standard ASTM, European standard EN, etc.), but generally cover the following caliber classifications: 1. Nominal diameter (DN) Small diameter welded

Pickling 1. Use acid to remove impurities such as scale and rust on the surface of the steel pipe. After pickling, the surface of the steel pipe becomes smooth and suitable for further coating or plating. Sand blasting 1. Use high-speed sand flow to clean

The standards for welded steel pipes cover the respective specifications of different regions and countries to ensure the quality, safety and performance of the products. These standards are applied in major markets such as China, the United States, Europe and Japan. The following are common

The following lists the various materials commonly used for welded steel pipes, covering common international standards: 1. Carbon steel materials 1. Ordinary carbon structural steel: - Q195, Q215, Q235, Q255, Q275 (Chinese standard) - SS330, SS400, SS490, SS540 (Japanese standard JIS G3101) - ASTM A53

Hollow anchor bars are a type of support material used in geological engineering, mine support, tunnel construction, slope stabilization and other projects, with a self-drilling function. Its main function is to strengthen the structural stability of rock formations and soil and prevent collapse. Compared with

Hot-rolled carbon steel pipe is a basic material widely used in construction, machinery manufacturing, petrochemical and other industries. It uses carbon steel as the main raw material and is formed by hot rolling process. It has good mechanical properties and processing characteristics and is suitable

Cold-rolled carbon steel pipe is a carbon steel pipe product produced by cold rolling process. It has high precision and surface quality and is suitable for precision machinery, automobile manufacturing, construction and furniture industries. Compared with hot-rolled steel pipe, cold-rolled steel pipe has higher dimensional

Angle steel, also known as angle iron, is a long steel bar with an "L"-shaped cross section. Due to its cross-sectional shape, angle steel has high strength and rigidity when subjected to multi-directional forces, and is suitable for a variety of building structures and engineering

Galvanized corrugated sheet is a steel sheet that is coated with a layer of zinc on the surface of a steel sheet or iron sheet and pressed into a corrugated shape through a special process. Due to the surface galvanizing treatment, galvanized corrugated sheet has

Carbon steel patterned plate/roll is a carbon steel plate with regular patterns on the surface, which is widely used in construction, machinery, transportation and other fields. 1. Material classification The material of carbon steel patterned plate/roll varies according to different application occasions and performance requirements.