Steel pipes can be divided into two categories according to production methods
Release time:
2022-08-23
Steel pipe according to the production method can be divided into two categories: seamless steel pipe and welded steel pipe, welded steel pipe referred to as welded pipe.
Steel pipe is not only used to transport fluids and powdery solids, exchange heat, and make machine parts and containers, it is also an economic steel. Using steel pipe to make building structure grid, pillar and mechanical support, can reduce weight, save 20 ~ 40% metal, and can realize the factory mechanized construction. Using steel pipe to make highway bridge can not only save steel, simplify construction, but also greatly reduce the area of protective coating, save investment and maintenance costs.
Steel pipe according to the production method can be divided into two categories: seamless steel pipe and welded steel pipe, welded steel pipe referred to as welded pipe.
1. According to the production method, seamless steel pipe can be divided into: hot-rolled seamless pipe, cold-drawn pipe, precision steel pipe, hot-expanded pipe, cold-spun pipe and extruded pipe, etc.
Bundles of steel pipes
Bundles of steel pipes
Seamless steel pipe is made of high quality carbon steel or alloy steel, hot rolled, cold rolled (drawing).
2. Welded steel pipe is divided into furnace welded pipe, electric welding (resistance welding) pipe and automatic arc welding pipe due to its different welding forms, which are divided into straight seam welded pipe and spiral welded pipe. Because of the shape of its end, it is also divided into circular welded pipe and special-shaped (square, flat, etc.) welded pipe.
Welded steel pipe is made of rolled tubular steel plate welded by joint or spiral joint. In the manufacturing method, it is divided into welding steel pipe for low pressure fluid transmission, spiral welded steel pipe, direct coiled welded steel pipe, electric welded pipe, etc. Seamless steel pipe can be used in various industries of liquid pressure pipe and gas pipe, etc. Welding pipe can be used for water pipe, gas pipe, heating pipe, electrical pipe and so on.
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