Straight Welded steel pipes can be divided into two main types according to the welding method: ERW (Electric Resistance Welded Pipe) and LSAW (Longitudinal Submerged Arc Welded Pipe). The two have significant differences in production process, raw material selection, welding method, weld quality and appearance, and are suitable for different engineering needs.

The spiral submerged arc welded steel pipe used in the drainage system is exposed to humid air, soil and other corrosive environment for a long time, and is prone to corrosion. In order to extend its service life and ensure safety and reliability, comprehensive anti-corrosion measures are required.

Flange is an important pipe connection component, which is widely used in industrial pipe system. Carbon steel flanges and stainless steel flanges are the two most common types, and they each have their own characteristics and play an important role in different application scenarios.

Seamless steel pipe, an indispensable component in many industries, is a cylindrical pipe with no welded joints or joints along its length.

A low carbon steel black square tube is a hollow square metal component made of low carbon steel with a black surface. Low carbon steel black square pipe has become one of the important materials in modern industry and construction because of its excellent performance, economic cost and wide applicability.

Seamless steel pipe because of its excellent performance, known as "industrial blood vessels", it is the basic components of many industries, in the oil, natural gas, chemical, energy, boiler manufacturing and other fields have an irreplaceable position.

A flange is a component that connects pipes, valves, pumps, and other equipment to form a piping system and facilitate cleaning, maintenance, and replacement. The shape of the flange is usually circular, and it is usually used in pairs to connect with the pipeline or equipment through bolts and gaskets to ensure its mechanical strength and tightness.

mild steel black pipes is a kind of pipe made of mild carbon steel, because its surface has a layer of black oxide film, so it is called black pipes. This layer of oxide is naturally formed during the manufacturing process, and the black appearance indicates that the surface has not been galvanized or other surface treatment.

A stainless steel elbow is a pipe fitting used to change the direction of fluid in a piping system. It is widely used in industries that require high corrosion resistance, durability and strength. Stainless steel elbows are usually available in the form of 45°, 90° and 180° angles to meet different pipe layout and design needs.

SSAW steel Pipe (Spiral Submerged arc-welded Pipe) is a kind of steel pipe made by coiled steel plates into billets in a spiral shape and Welded by double-sided Submerged Arc welding technology. The Angle of spiral welding makes the weld of the pipe spiral distribution, uniform distribution, which is conducive to withstand greater internal and external pressure.

Electric Resistance Welded Steel Pipe (ERW) is a steel pipe manufactured by a resistance welding process. The steel pipe is rolled into a round steel plate or steel strip, and then the contact surface of the pipe is melted by the heat of the high-frequency current, and the welding without filling metal is realized under the action of pressure, thus forming the longitudinal weld of the pipe. ERW steel pipe has efficient production speed, excellent surface quality and uniform wall thickness, so it is widely used in a variety of industrial fields.

ASTM A106 carbon steel pipe means a carbon steel pipe manufactured seamlessly by hot rolled or cold drawn (rolled). schedule 40 is a representation of pipe wall thickness, indicating medium wall thickness. ASTM A106 schedule 40 Seamless carbon steel pipe is commonly used in high temperature applications, therefore, it can be used to transport fluids (water, oil and gas, mud), is an important material in the mining industry.

A seamless steel pipe is a type of steel pipe without any welding seams, manufactured by processing steel billets through heating, perforation, stretching, or rolling. This process ensures that seamless steel pipes have no welding joints or seams, maintaining excellent mechanical properties and uniform internal structure. Due to their high strength, corrosion resistance, and pressure resistance, seamless steel pipes are widely used in various industrial and engineering fields, such as pipelines for fluid transportation, pressure vessels, mechanical parts, and structural supports in construction.

Seamless carbon steel pipes are industrial pipelines made from seamless carbon steel, primarily containing carbon, silicon, manganese, phosphorus, sulfur, and other elements. They have high strength and durability, making them suitable for various engineering applications. Their excellent chemical stability, machinability, low cost, and ease of manufacturing also make them an ideal choice for many production processes.

Shipbuilding steel plate refers to the carbon steel and alloy steel plate used in offshore and Marine engineering, and its classification is mainly based on its strength grade, toughness grade, and the relevant classification society certification standards. Common grades are A, B, D, E, AH32/36/40, DH32/36/40, EH32/36/40.