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                                              SJ-2CM  
                                              Specification£º GB/T8110  ER62-B3
                                              AWS A5.28  ER90S-B3
                                              Approved by£º
                                               Features and Applications    
                                              SJ-2CM is suitable for welding of 620Mpa high tensile steels. Applicable to high temperature tube, architecture, building industries of machinery pressure vessel, oil spitting etc whose temperature is below 550¡æ.

                                               Points for Attention    
                                              Ensure that the purity of shielding gas and mixing ratio of properly mixed gas is well controlled.
                                              Keep the shielding gas flow at 20-25L/min
                                              Keep the electrode extension between 15-25mm
                                              Rid the welded part of rusty layer, damp, oil stain and dust, etc.
                                              Always keep torch nozzle clean and TIP in good condition.
                                              Use the wire under the best possible conditions.
                                              Strict control over heating temperature, the temperature between layers and temperature treatment after welding.

                                                 An example of chemical Composition of Weld Wire(wt%): (Shielding gas:Ar+1~5%O2)
                                              C Mn Si P S Cr Mo
                                              0.077 0.60 0.55 0.010 0.008 2.40 1.15

                                                 An example of mechanical Properties of Weld Pass:(Shielding gas: Ar+1~5%O2)    Heat treatment after welding(609¡æ ¡Á1h)
                                              Yield Strength
                                              MPa
                                              Tensile Strength
                                              MPa
                                              Elongation
                                              %
                                              Impact Value
                                              J
                                              610 685 22 Home temperature 125

                                                 Welding Parameter Suggestions: (DC+)
                                              Wire Diameter£¨mm£© 0.8 0.9 1.0 1.2 1.6
                                              Current Range
                                              £¨Amp£©

                                              Flat position welding

                                              50-180 50-200 80-250 100-350 250-500
                                               Overhead position welding 50-100 50-100 70-120 80-150 -
                                              Vertical up welding 50-100 50-140 50-160 80-180 -
                                               Vertical down welding 50-100 50-200 80-220 80-240 -

                                                 Package Size:
                                              Wire Diameter£¨mm£© 0.8£¬0.9£¬1.0£¬1.2£¬1.6£¬2.0
                                              Weight£¨kg£© spool packing£¨5£¬10£¬15£¬20£©£¬drum packing£¨250¡¢350¡¢400£©
                                              Remark Above coule be made according to customer's requirement
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