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                                              SW-EM12K  
                                              Specification AWS A5.17  F7A2-EM12K
                                              ISO 14171-A-S2Si
                                              Approved by CE,JIS
                                               Features and Applications    
                                              SW-EM12K is submerged arc welding wire for welding of mild steel and 490Mpa high tensile steels. It is suitable for welding in shipbuilding, steel structure, steel pipeline and heavy machinery.
                                               Points for Attention    
                                              Rid the welded part of rusty layer, damp, oil stain and dust, etc.
                                              Always keep TIP in good condition.
                                              Use the wire under the best possible conditions.
                                                 An example of chemical Composition of Weld Wire(wt%)
                                              C Mn Si P S
                                              0.070

                                              1.05

                                              0.20 0.012 0.007

                                                 An example of mechanical Properties of Weld Metal:(Flux:SJ301) 
                                              Yield Strength
                                              MPa
                                              Tensile Strength
                                              MPa
                                              Elongation
                                              %
                                              Impact Value 
                                              -20 J
                                              430 540 25 150

                                                 Welding Parameter Suggestions: (DC+) 
                                              Wire Diametermm Current Range
                                              A
                                              Voltage Range
                                              V
                                              Welding Speed
                                               0.5mm/s
                                              Electrode extension
                                              mm

                                              2.0

                                              300-400 26-29 5.5 13-19
                                              2.4 350-450 27-30 6.0 19-32
                                              2.8 400-500 27-30 6.0 19-32
                                              3.0 400-500 27-30 6.5 25-38
                                              3.2 425-525 27-30 6.5 25-38
                                              4.0 475-575 27-31 7.0 25-38
                                              4.8 530-630 27-31 7.0 25-38
                                              5.0 550-650 27-31 7.0 25-38
                                              6.4 700-800 28-32 8.5 38-50

                                                 Package Size:
                                              Wire Diametermm 2.02.53.03.24.04.54.85.06.4
                                              Weightkg 25501502503501000
                                              Remark Above coule be made according to customer's requirement
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