ERW tube suppliers:
As a large-scale steel tube manufacturer in China, Huayang Steel tube is the only one that can produce both ERW and LSAW steel tube at the same time. The largest size of production can be up to 56 inches 1422mm, is well know ERW tube and LSAW tube suppliers in China.
Now let's discuss the difference between them:
ERW steel tube and LSAW steel tube are two common steel tube manufacturing methods, the difference between them mainly lies in the following aspects:
1. Manufacturing process: ERW steel tube is a manufacturing method in which the coiled steel strip is heated by high-frequency current, then melted by resistance heating and rolled into a tube shape;while LSAW steel tube is bent into a U shape by steel plate, and then welded Join the edges on both sides to form a tube.
2. Scope of application: ERW steel tubes are mainly suitable for the manufacture of steel tubes with smaller diameters and thinner wall thicknesses, such as water tubes, gas tubes, oil tubelines, etc.; while LSAW steel tubes are suitable for the manufacture of steel tubes with larger diameters and thicker wall thicknesses, such as natural gas, oil, Chemical industry and other fields.
3. Weld seam quality: The weld seam quality of ERW steel tube is relatively good, because it is welded by resistance heating, so the weld seam does not have too much tensile stress; while the weld seam quality of LSAW steel tube is relatively poor, because it is welded by resistance heating It is welded by melting, so the weld will have a certain tensile stress, which needs to be repaired through subsequent control processes.
4. Production efficiency and cost: ERW steel tube has high production efficiency and relatively low cost; while LSAW steel tube has low production efficiency and relatively high cost.
To sum up, ERW steel tubes and LSAW steel tubes are different in terms of manufacturing process, scope of application, weld quality, production efficiency and cost. The specific choice of which type of steel tube depends on specific needs and applications.
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