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The Use of the Stainless steel pipe

times:2022-04-21 01:15:26read:

1. Seamless stainless steel pipe: it is a long strip of steel which has hollow cross section and no seam around it.
The manufacturing technology and process of the seamless stainless steel pipe: smelt > bloom > roll > saw > skin > bore a hole > anneal > scouring > put ash > cold-drawing > cut head > scouring > put in storage
The characteristic of the seamless stainless steel pipe: we can easily to find from these process: First, the product's wall is thicker, it is economical and practical. The product’s is thinner, its manufacturing cost will rise by a wide margin. Second, its technology decides its limitation. In common, the seamless stainless steel pipe’s accuracy is low, it has wall unevenness, it’s inside and outside of the pipe rediance is low, also, its size cost price is high and it has mechanical pitting, black spot which is hard to remove inside and outside the pipe. Third, its testing and shaping must do in offline state. So, it show its advantages in aspects of high-pressure, high strength and machinery-structure material.
2. Welding stainless steel pipe: this is stainless steel pipe which is made by welding after steel sheet and strip being curled with machine set and mould.
The manufacturing technology and process of the welding stainless steel pipe: steel sheet > slitting > forming > welding > induction bright heat treatment > internal and external welding bead treatment > shaping > determine the diameter > eddy current testing > Laser diameter measurement > scouring > put in storage
The characteristics of the welding steel pipe: We can easily to find from these process: First, this product is continuous online production. Its wall is thicker, the invest of the machine set and welding equipment is more, so it is not economical and practical. Its wall is thinner, its input-output ratio will decrease. Second, its technology decides its merits and demerits. In common, welding stainless steel pipes accuracy is high and has even wall thickness, its inside and outside of the pipe radiance is high (the level of the sheet's surface decides steel pipe radiance), it also can be sized willfully. So, it shows its economy and beauty in the aspects of high accuracy, medium and low-pressure fluid application.

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