Seamless steel pipes are formed by perforation, extrusion, and other processes. They have uniform wall thickness and high compressive strength, suitable for high-pressure and high-temperature environments such as boilers and heat exchangers.
Features: High pressure resistance, heat resistance, suitable for extreme conditions.
Pros & Cons: Complex manufacturing process, higher cost, but ideal for high-pressure and high-temperature applications.
Welded steel pipes are made by welding steel plates or strips. They are ideal for low-pressure applications such as buildings and water/gas transportation.
Features: Simple manufacturing process, low cost.
Pros & Cons: Lower strength compared to seamless pipes, suitable for less demanding applications.
Used in construction, bridges, and machinery structures, requiring high strength and good compressive properties.
Features: Good toughness and strong load-bearing capacity.
Pros & Cons: Focuses on load-bearing performance rather than corrosion resistance compared to fluid transportation pipes.
Mainly used for transporting petroleum, natural gas, and water, requiring good corrosion resistance and pressure resistance.
Features: Good corrosion resistance, suitable for long-distance fluid transportation.
Pros & Cons: Lower strength but strong sealing and corrosion resistance, suitable for special environments.
Used in heat exchangers, requiring excellent heat transfer and high-temperature resistance, widely used in chemical and energy industries.
Features: Good heat transfer, high temperature and corrosion resistance.
Pros & Cons: Special application scenario, requires optimization of heat transfer efficiency.
Used in boiler equipment, able to withstand high temperatures and pressures, widely used in power plants and hot water boilers.
Features: High temperature and pressure resistance, widely used in the energy industry.
Pros & Cons: Extremely high requirements for strength and heat resistance, higher cost.
Low carbon steel pipes contain less than 0.25% carbon, offering good plasticity and weldability, widely used in construction and general pipelines.
Features: Good weldability and plasticity, suitable for general pressure environments.
Pros & Cons: Low strength, not suitable for high-pressure or high-strength applications.
Contains between 0.25% and 0.6% carbon, with good overall mechanical properties, suitable for parts that bear higher loads.
Features: Higher strength, suitable for industrial equipment and load-bearing structures.
Pros & Cons: Lower plasticity and weldability, suitable for applications requiring higher strength.
Contains more than 0.6% carbon, offering high hardness and strength, widely used for tool manufacturing and wear-resistant environments.
Features: High hardness and strength, suitable for high-load and wear-resistant applications.
Pros & Cons: Poor plasticity, difficult to process, suitable for special environments.
Black pipes have no special surface treatment, primarily used for general construction and water pipelines.
Features: Low cost, suitable for normal environments.
Pros & Cons: Lack of corrosion resistance, suitable for indoor or non-harsh environments.
Galvanized steel pipes have a layer of zinc coating, providing strong corrosion resistance, suitable for outdoor and humid environments.
Features: Strong corrosion resistance, suitable for outdoor or humid conditions.
Pros & Cons: Higher cost, suitable for harsh environments.
Plastic-coated steel pipes are coated with a layer of plastic, providing excellent corrosion resistance and wear resistance.
Features: Corrosion and wear-resistant, suitable for special environmental applications.
Pros & Cons: Higher production cost, suitable for applications requiring high corrosion resistance.
Large diameter steel pipes have diameters larger than 219mm, mainly used for long-distance, high-flow, and high-pressure pipelines.
Features: Suitable for high flow and high-pressure applications.
Pros & Cons: Higher cost, suitable for large projects.
Small diameter steel pipes are widely used in construction and general industrial projects.
Features: Lower cost, suitable for general industrial applications.
Pros & Cons: Lower pressure resistance, suitable for lower pressure environments.
National standard steel pipes conform to China's GB/T standards, widely used in domestic construction and machinery industries.
Features: Conforms to China's market standards, reliable quality.
Pros & Cons: Mainly suitable for domestic markets, with limited compatibility in international markets.
American standard steel pipes conform to ASTM standards, widely used in the U.S. and other countries.
Features: Conforms to U.S. and European market standards, suitable for North American regions.
Pros & Cons: Requires additional certification and market adaptation.