Classification by use: steel pipe for pipeline, steel pipe for thermal equipment, steel pipe for mechanical industry, steel pipe for petroleum, steel pipe for geological drilling, steel pipe for vessel, steel pipe for chemical industry, steel pipe for special purpose and others 4. Chemical composition inspection.
Choose different bending radius according to your craft. Generally, choose 1.5D. Special cases also use 5D and 10d elbow.
According to the carbon content, carbon steel can be divided into low carbon steel (WC ≤ 0.25%), medium carbon steel (WC 0.25% - 0.6%) and high carbon steel (WC > 0.6%);
The characteristics are generally comparative strength, hardness, plasticity, weldability, etc. for example, low carbon steel has low strength, low hardness, good plasticity and weldability.
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