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June 21, 2022
4. When chrome-nickel stainless steel is welded, carbides are precipitated by repeated heating, which reduces corrosion resistance and mechanical properties.
5. The chromium-nickel stainless steel electrode has good corrosion resistance and oxidation resistance, and is widely used in chemical, fertilizer, petroleum, and medical machinery manufacturing.
6. The chrome-nickel stainless steel coating has titanium calcium type and low hydrogen type. Titanium calcium type can be used for AC and DC, but the penetration depth is shallow during AC welding, and it is easy to become red, so DC power is used as much as possible. Diameter 4.0 and below can be used for all-position weldments, and 5.0 and above can be used for flat welding and flat fillet welding.
7. The electrode should be kept dry when used. The titanium calcium type should be dried at 150 °C for 1 hour, and the low hydrogen type should be dried at 200-250 °C for 1 hour (do not repeat the drying many times, otherwise the coating will be easy to crack and peel off) to prevent the welding rod. Skin sticky oil and other dirt, so as not to increase the carbon content of the weld and affect the quality of the weldment.
8. In order to prevent eye-to-eye corrosion due to heating, the welding current should not be too large, about 20% less than that of carbon steel electrodes, the arc should not be too long, and the layers are cooled quickly, and a narrow weld bead is appropriate.
The above is the Stainless Steel Welding Precautions we have listed for you. You can submit the following form to obtain more industry information we provide for you.
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