Welded carbon steel pipe is a pipe made by forming and welding coils or straight seam steel strips, which is both economical and applicable. It has high production efficiency and low cost, and is suitable for non-extreme working conditions such as low-pressure fluid transportation (such as water and gas), building structures, and general mechanical engineering. According to the welding process, it can be divided into straight seam welded pipe (ERW/LSAW) and spiral welded pipe (SSAW) to meet different specifications. Compared with seamless pipes, the strength of its weld area is slightly weaker, but the quality can be guaranteed through standardized welding and testing, and it is widely used in medium and low pressure and general corrosive environments.

Electric Welded (ERW) Round Steel Tube is made of hot rolled coils through forming, high frequency resistance welding and other processes. Its weld is formed by melting the steel strip base material, and its mechanical strength is better than that of ordinary welded pipes. It has high production efficiency, low cost, high dimensional accuracy and uniform wall thickness. It is widely used in the fields of oil and natural gas transportation, building structures, and liquid transportation such as tap water and agricultural irrigation. It is an economical and practical pipe choice.

ASTM A214 Welded Carbon Steel Pipe is an American standard resistance welded carbon steel pipe for heat exchange and condenser. It is manufactured using high-frequency resistance welding technology. The outer diameter specification is usually no more than 3 inches (76.2 mm), the wall thickness is highly accurate, and non-standard sizes can be customized. Its chemical composition carbon content is ≤0.25%, and its mechanical properties meet the pressure requirements of heat exchange equipment, but it is not suitable for pipes with an inner diameter less than 1/8 inch (3.2 mm) or a wall thickness less than 0.015 inches (0.4 mm). This pipe is widely used in heat exchange systems in the petrochemical and power industries.

ASTM A500 Gr.B Welded Carbon Steel Pipe is an American standard electric resistance welded carbon steel square/rectangular tube that complies with ASTM A500 standard, with a tensile strength of 360-510MPa, a yield strength ≥225MPa, and an elongation ≥18%. It adopts hot rolling + AR process, has high strength, light weight, and impact resistance, and is suitable for structural engineering such as building frames, bridge bearings, and heavy machinery manufacturing. The pipe supports customized specifications, and the surface can be treated with anti-corrosion. It is available nationwide, with high cost performance and wide application.

Q235 Welded Carbon Steel Pipe is a welded steel pipe made of Q235 carbon structural steel. The yield strength of Q235 steel is 235MPa, the tensile strength is 375-500MPa, the sulfur and phosphorus content is ≤0.05% and ≤0.045%, and the welding performance is excellent. The production process of this pipe is simple and the cost is low. It is widely used in projects such as building structures, bridges, factories, and low-pressure fluid transportation. The product usually needs to undergo water pressure, bending and other tests. The delivery length is 4-10 meters, with various specifications and economical and practical.

Q345 Welded Carbon Steel Pipe is a welded steel pipe made of Q345 low alloy high strength structural steel. Q345 steel has a yield strength of ≥345MPa and a tensile strength of 470-630MPa. It has high strength, good toughness and welding performance, and excellent low temperature impact performance. This pipe is widely used in building structures, bridge engineering, machinery manufacturing, energy transportation and other fields. Its high cost performance and ability to adapt to complex working conditions make it the preferred material for medium and high pressure pipeline systems and heavy structural parts.

ASTM A192 Seamless Carbon Steel Pipe is a seamless carbon steel boiler pipe for high pressure use in the American standard, which complies with ASTM A192 standard. Its carbon content is 0.06% - 0.18%, manganese content is 0.27% - 0.63%, tensile strength is ≥325MPa, yield strength is ≥180MPa, elongation is ≥35%, outer diameter is 12.7 - 177.8mm, wall thickness is 2.2 - 25.4mm. After strict quality inspection, it is widely used in high temperature and high pressure equipment such as boilers and superheaters, and plays an important role in the power, chemical and other industries.

Zhongxi Metal is a professional manufacturer and supplier of ASTM A106 seamless carbon steel pipes, available in hot rolled and cold drawn techniques. Our seamless steel pipes are corrosion-resistant, lightweight, and have high tensile strength. Used in various industries like oil & gas, power generation, and ship-building. Contact us for custom sizes and global export services.

ASTM A53 Grade B Carbon Steel Pipe is a general-purpose seamless/welded carbon steel pipe of American standard, which is implemented in accordance with ASTM A53/A53M standard. Its carbon content is ≤0.30%, manganese is 0.29%-1.06%, tensile strength is ≥415MPa, yield strength is 240MPa, outer diameter is 21.3-762mm, wall thickness is 2.0-140mm, and it is manufactured by hot rolling or cold drawing process. It has high strength, corrosion resistance and processing convenience, and is widely used in oil, natural gas, water and steam transportation systems, as well as construction, chemical industry, machinery and other fields.

API 5L Grade B Carbon Steel Seamless Pipe is a carbon steel seamless pipe that complies with API 5L standards and is designed for oil, natural gas and other transportation fields. Its carbon content is ≤0.28%, manganese content is within 1.20%, tensile strength is ≥415MPa, yield strength is 240MPa, outer diameter is 21.3-762mm, wall thickness is 2.0-140mm, and it supports hot rolling, cold drawing and other processes. The pipe is resistant to high pressure and corrosion, suitable for long-distance oil and gas transportation, and can maintain stable performance under harsh working conditions. It is the preferred material for energy transportation pipelines.

ASTM A210 Carbon Steel Seamless Pipes are American standard seamless medium carbon steel boiler and superheater tubes, which comply with ASTM A210 standards. The carbon content of the pipe is ≤0.27% for A-1 grade and ≤0.35% for C grade, the tensile strength is ≥415MPa for A-1 grade and ≥485MPa for C grade, the yield strength is ≥255MPa for A-1 grade and ≥275MPa for C grade, and the elongation is ≥30%. It is manufactured using seamless technology and can be hot-rolled or cold-drawn. It has high strength, high temperature and high pressure resistance, and is widely used in high-temperature equipment such as power station boilers, industrial boilers and superheaters.

ASTM A179 Carbon Steel Seamless Pipe is a seamless cold-drawn low-carbon steel pipe that complies with ASTM A179 standards and is specially used for manufacturing heat exchangers, condensers and other heat transfer equipment. Its carbon content is 0.06%-0.18%, manganese content is 0.27%-0.63%, tensile strength is ≥325MPa, yield strength is ≥180MPa, elongation is ≥35%, and hardness is ≤72HRB. The outer diameter range is 3.2-76.2 mm, and the wall thickness is adapted to the requirements. It has high thermal conductivity, corrosion resistance and processing performance, and is widely used in industrial fields such as petroleum, chemical, and electric power.