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1. Pickling passivation pretreatment Stainless steel pickling passivation before any surface dirt, etc., should be mechanically cleaned, degreasing and then degreasing. If the pickling solution and th...

Stainless welded pipe production process: Raw material inspection Splitting Shaping Welding Cutting Heat treatment Straightening Plane end Eddy current Hydraulic test Lnner polishing Outer polishing ...

First, cutting performance Different stainless steel pipe cutting performance are very different. Generally speaking, the cutting performance of stainless steel pipe worse than other, is the austeniti...

Wrinkling is a type of surface defect that easily occurs when the strain of ferritic stainless steel is large in the forming process. It occurs in the rolling direction of the strip and appears as a n...

Polishing performance factors of 304 stainless steel pipe are the following: ① Raw surface defects. Such as scratches, pitting, too pickling and so on. ② 304 stainless steel pipe material problems. Ha...

The use of appropriate lubricants have a significant effect on the drawing of 304 stainless steel. The lubricant can form a layer of film with certain toughness and elongation between the convex and c...

Precautions for welding of 304 stainless steel pipe are as follows: 1, The use of vertical external power supply, DC positive polarity (wire connected negative). 2, Generally suitable for the welding...

1. Low temperature embrittlement --- in low temperature environment, the deformation energy is small. In the low temperature environment, the reduction of elongation and reduction of area is called lo...

Metal of 304 stainless steel seamless pipe and oxygen in the atmosphere to react, the appearance will form an oxide film. However, the iron oxide formed on a common carbon steel pipe is continuously o...

The surface of the 304 stainless steel pipe is due to the production process. The surface will bring some defects such as: crack, hairline, fold, fold, rolling broken, the straight, straight, delamina...