1, chromium stainless steel with a certain degree of corrosion (oxidizing acids, organic acids, cavitation), heat and abrasion resistance. Typically used in power plants, chemical, oil, and other equipment and materials. Chromium stainless steel welded poor, should pay attention to the welding process, heat treatment conditions and the appropriate choice of Mig Welding Electrode.

2, chrome 13 stainless steel after welding sclerosing larger prone to cracks. The welding must be carried out about 300 ° C above the preheating and post weld 700 ° C slow cooling treatment using the same type of chromium stainless steel electrode (G202, G207). Weldment can not post-weld heat treatment should be used chrome-nickel stainless steel electrode (A107, A207).

3, Chromium 17 Stainless Steel, to improve the corrosion resistance and weldability and appropriately increase appropriate stability of the elements Ti, Nb, Mo, etc., a good weldability than 13 chromium stainless steel. Should be carried out using the same type of chromium stainless steel electrode (G302, G307), preheat and post-weld above 200 ℃ and 800 ℃ tempering. Weldment can not be heat treated, should be used chrome-nickel stainless steel electrode (A107, A207).

4, chrome-nickel stainless steel electrode has good corrosion resistance and oxidation resistance, widely used in chemical, fertilizer, petroleum, medical machinery manufacturing.

Chrome-nickel stainless steel welded carbide precipitation by repeated heating to reduce corrosion resistance and mechanical properties.

6, chrome-nickel stainless steel titanium calcium type low hydrogen type drug skin. Titanium calcium type can be used for AC-DC and AC welding penetration shallow, and at the same time easy to redness, so as much as possible with DC power. Diameter of 4.0 and below can be used for all-position welding pieces of 5.0 and above for flat welding and fillet welding.

7, the electrode should be kept dry, titanium calcium type shall be approved by the dried at 150 ℃ for 1 hour, low-hydrogen type shall be approved by of 200-250 ℃ dry for one hour (not repeated drying or drug skin prone to cracking peeling) to prevent electrode medicated skin sticky oil and other dirt, to avoid causing the weld to increase the quality of the carbon content and impact of the weldment.

8, in order to prevent the generated eye intergranular corrosion due to the heating, the Welding Wires current should not be too large, about 20% less than the carbon steel electrode, an arc is not too long, the interlayer fast cooling, preferably with narrow weld.