Judge the quality of stainless steel pipe fittings!

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Judge the quality of stainless steel pipe fittings!

2020-06-19 H:57:11

Stainless steel pipe fittings have excellent mechanical properties, beautiful appearance fashion, which is conducive to saving water resources. In order to make the water quality more stable, it is very important to maintain the quality of stainless steel pipe fittings. How should consumers judge the quality of stainless steel tubes?

The difference between the quality of stainless steel pipe fittings is mainly the difference of nickel content. Nickel is a kind of corrosion resistant material. When combined with chromium in stainless steel, the corrosion resistance processability of stainless steel can be improved. However, in order to obtain pure austenite structure, the content of nickel should reach 24%. Only when the nickel content is 27%, the corrosion resistance of low carbon nickel steel in some media will change significantly. The corrosion resistance of 310S stainless steel plate mainly depends on its alloy composition (Cr, Ni, Ti, Si, Al, etc.) internal structure, its main function is chromium.

The ends of arc welding tack welding of stainless steel pipe fittings shall have smooth transition, the weld shall be too high, fusion shall be ensured to prevent defects such as insufficient penetration slag inclusion. If the weld is cracked, shovel out the weld at the crack place it again. After positioning welding, if the interface is smooth, it should be corrected first, then formal welding. Forced assembly shall be avoided as far as possible to prevent weld cracking formal weld formation during welding. If necessary, increase the length of the weld reduce the spacing of the weld, use heat treatment measures.

There are many ways to deal with stainless steel fittings. Many of them still belong to the category of mechanical processing. Stainless steel pipe processing is an organic combination of mechanical processing metal pressure processing.