Anti-corrosion steel pipe base materials include spiral pipes, straight seam pipes(SSAW pipe), seamless pipes, etc. Widely used in pipeline engineering fields such as long-distance water transmission, petroleum, chemical industry, natural gas, thermal power, sewage treatment, water source, bridge, steel structure, marine water transportation piling, etc.
Classified by manufacturing process
According to the manufacturing process, it can be divided into seamless pipe and welded pipe
1.The manufacturing process of seamless steel pipes can be divided into several basic categories: hot rolling (extrusion), cold rolling (drawing), and thermal expansion steel pipes.
2.Welded pipes can be divided into: straight seam welded steel pipes, spiral welded steel pipes, coil butt welded steel pipes, and welded pipe thermal expansion steel pipes according to the manufacturing process.
Classified by shape
Anti-corrosion steel pipes can be divided into:Round pipe, square pipe, rectangular pipe, octagonal, hexagonal, D-shaped, pentagonal and other special-shaped steel pipes, complex cross-section steel pipes, double-concave steel pipes, five-petal plum-shaped steel pipes, conical steel pipes, corrugated steel pipes, melon-shaped steel pipes,double convex steel pipe, etc.
Classification by purpose
Anti-corrosion steel pipes can be divided into: steel pipes for pipelines, steel pipes for thermal equipment, steel pipes for machinery industry, steel pipes for petroleum, geological drilling, container steel pipes, steel pipes for chemical industry, steel pipes for special purposes, etc.
In addition to improving the service life of the steel pipe through anti-corrosion, the steel pipe is also manifested in the following aspects:
1. Combining the mechanical strength of steel pipe and the corrosion resistance of plastic;
2. The outer wall coating is more than 2.5mm, scratch-resistant and bump-resistant;
3. The friction coefficient of the inner wall is small, 0.0081-0.091, which reduces energy consumption;
4. The inner wall is smooth and not easy to scale, with self-cleaning function.
Classified by manufacturing process
According to the manufacturing process, it can be divided into seamless pipe and welded pipe
1.The manufacturing process of seamless steel pipes can be divided into several basic categories: hot rolling (extrusion), cold rolling (drawing), and thermal expansion steel pipes.
2.Welded pipes can be divided into: straight seam welded steel pipes, spiral welded steel pipes, coil butt welded steel pipes, and welded pipe thermal expansion steel pipes according to the manufacturing process.
Classified by shape
Anti-corrosion steel pipes can be divided into:Round pipe, square pipe, rectangular pipe, octagonal, hexagonal, D-shaped, pentagonal and other special-shaped steel pipes, complex cross-section steel pipes, double-concave steel pipes, five-petal plum-shaped steel pipes, conical steel pipes, corrugated steel pipes, melon-shaped steel pipes,double convex steel pipe, etc.
Classification by purpose
Anti-corrosion steel pipes can be divided into: steel pipes for pipelines, steel pipes for thermal equipment, steel pipes for machinery industry, steel pipes for petroleum, geological drilling, container steel pipes, steel pipes for chemical industry, steel pipes for special purposes, etc.
In addition to improving the service life of the steel pipe through anti-corrosion, the steel pipe is also manifested in the following aspects:
1. Combining the mechanical strength of steel pipe and the corrosion resistance of plastic;
2. The outer wall coating is more than 2.5mm, scratch-resistant and bump-resistant;
3. The friction coefficient of the inner wall is small, 0.0081-0.091, which reduces energy consumption;
4. The inner wall is smooth and not easy to scale, with self-cleaning function.
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