What is the difference between seamless steel pipe and ordinary stainless steel pipe

1. The appearance of stainless steel tube is generally white and no embroidery. Ordinary seamless steel tube surface will have floating embroidery or reddish brown.

Stainless steel corrosion resistance, the finish is much better than ordinary steel pipe. , etc.

2. The seamless steel tube is drawn in the process, without welding joints, and the material can be ordinary 20 steel or stainless steel;

Ordinary stainless steel pipe is generally welded on the process, the material is stainless steel.

Stainless steel seamless tube is a kind of hollow section, no joint around the strip of steel. The thicker the wall thickness of the product, the more economic and practical it is, the thinner the wall thickness, its processing cost will rise substantially; The process of the product determines its limited performance, the general seamless steel tube precision is low: uneven wall thickness, low brightness inside the tube surface, high cost of measuring, and inside and outside the pitting, black spots are not easy to remove; Its detection and shaping must be handled offline. Therefore, it shows its superiority in high pressure, high strength and mechanical structure.

Welded steel pipe referred to as welded pipe, commonly used steel or steel strip after the unit and mold crimping forming welding made of steel pipe. Welding steel pipe production process is simple, high production efficiency, variety specifications, less investment in equipment, but the general strength is lower than seamless steel pipe. Since the 1930 s, with the rapid development of high quality strip steel rolling production and the progress of welding and inspection technology, constantly improve the weld quality, increasing varieties of welded steel pipe specifications, and especially in the heat transfer in more and more fields who spare pipe, decorative, low pressure fluid in the tube instead of seamless steel tube.

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