Stainless Steel Strip Electrodes for Surfacing GDS

Typical Chemical Composition of Weld Metal Type of surfacing metal Welding process Chemical compositionDeposited layer C Mn Si Ni Cr Nb P S 316LSAWFirst transition layer(strip+flux)Transition layer strip 309L 0.015 1.85 0.30 13.1 24.0 - 0.018 0.010 Transition layer deposited metal 0.040 1.60 0.90 11.5 20.1 - 0.020 0.008 Second corrosion resistant layer(strip+flux)Surface layer strip 316L 0.018 1.87 0.25 13.0 19.0 2.65 0.018 0.010 Surface layer deposited metal 0.020 1.70 0.50 12.5 19.2 2.30 0.020 0.008 ESWFirst transition layer(strip+flux)Transition layer strip 309L 0.015 1.85 0.30 13.1 24.0 - 0.018 0.010 Transition layer deposited metal 0.038 1.40 0.55 11.3 21.1 - 0.019 0.007 Second corrosion resistant layer(strip+flux)Surface layer strip 316L 0.018 1.87 0.25 13.0 19.0 2.65 0.018 0.010 Surface layer deposited metal 20 1.52 0.43 12.7 19.2 2.33 0.019 0.007 Notes on Usage (1)The parent metal should be strictly ground before welding, and the factors affecting welding such as rust, oil stain and etc should be removed. Preheat must be required. (2)When surfacing on the transition layer, the thickness of transition layer surfacing should be reduced on the premise of ensuring weld forming.(3-3.5mm); while surfacing on the corrosion resistant layer, the thickness of corrosion resistant layer should be increased properly.(3.5-4mm) (3)In electroslag surfacing, using flat slope power source will be better. (4)From horizontal to 2°upslope welding is preferred for the surfacing position. Sizes Available and Recommended Parameters Recommended WPS parameter for submerged surfacingStrip Size (mm)Surfacing current(A) Surfacing voltage(V) Surfacing speed(mm/min) elongation(mm) Flux Thickness(mm) Weld lapping(mm) Weld dump height(mm) 0.5*60 700-1000 28-32 140-220 30-40 - 4-8 3.0-5.0 0.4*50 550-800 28-32 140-220 30-40 - 4-8 3.0-5.0 Recommended WPS parameter for submerged surfacingStrip Size (mm)Surfacing current(A) Surfacing voltage(V) Surfacing speed(mm/min) elongation(mm) Flux Thickness(mm) Weld lapping(mm) Weld dump height(mm) 0.5*60 700-1000 24-30 140-220 30-40 20-30 5-12 3.0-5.0 0.4*50 550-800 24-30 140-220 30-40 15-25 5-12 3.0-5.0