SPA-C steel plate has good corrosion resistance effect and good protection effect for steel. When choosing SPA-C steel plate, its welding performance should be guaranteed.
Spa-c steel plate in the choice of welding material in addition to meet the strength requirements, but also in the corrosion resistance to match with the base material, because SPA-C steel alloy element content is less, its structure for ferrite a small amount of pearlite, with good plasticity and toughness, welding hardening tendency is small.
SPA-C steel plate welding generally adopts manual arc welding process.
The deposited metal of the electrode should have the corrosion resistance and comprehensive mechanical properties matching with the base metal, and at the same time should have good process properties.
Carbon dioxide gas welding: The welding process of SPA-C steel plate is similar to that of low carbon steel. Firstly, the surface of welds and the groove surface of welded joints are cleaned of various dirt and rust, etc.
For SPA-C steel plate with thick plate and structure with high constraint degree, preheating should be carried out before welding, especially for steel with higher strength level.
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