Precautions for the use of stainless steel flange:

1. In order to avoid the erosion of the eyes due to the heating of the flange cover, the welding current should not be too large, which is less than 20%less than the carbon steel box.
should.
2. Instant boring should be adhered to when the box is used. The titanium olty type should be boring by 150 ° C for 1 hour. Avoid the chip skin and other dirt, so as not to cause the weld to increase the amount of carbon -containing and affect the quality of the weld.
3. When welding stainless steel flange pipes, it is repeatedly heated and precipitated carbides, reducing ** erosion and mechanical properties.
4, chromium stainless steel flange pipe fittings after welding, hardened US -standard Frank, is large, and simply cracks. If you choose the same type of chromium stainless steel bar (G202, G207) welding, you need to perform 300 ° C
The above preheating and slow cold treatment of about 700 ° C after welding. If the welding parts cannot be treated after welding, the stainless steel flange pipe welding strip should be selected (A107. A207).
5.Stainless Pipe Flangese, appropriately increases the appropriate amount of stable element TI, NB, MO, etc. to improve the erosion performance and weldability. Welding is better than chromium stainless steel flange. When using the same type of chromium stainless steel flange strips (G302, G307), a renewal treatment of about 800 ° C after welding should be performed by 200 ° C or more. If the welding parts cannot be treated, stainless steel should be selected
French pipes welding (A107, A207).
6. Stainless Pipe Flanges pipes, which are well -performed and antioxidant, are widely used in chemical, chemical fertilizer, petroleum, and medical machinery manufacturing for welded flanges.