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          Position:Home>> Detail
          LJ-HJ251
          Jinan Jincai Welding Material Co. , Ltd.

          Conforming to:GB/T12470    S490AAS-SU34

           Description: HJ 251 is defined as fused type fluxes with low manganese medium silicate and medium fluorine, color in light yellow to light green, with jaded stone form granules 10-60 meshes in size. They are suitable for use with D.C. power source, filler-wire will be connected to electrode positive (EP) good welding technological behavior.

          Field of application: Fluxes match Cr-Mo steel filler-wire being for welding of pealite resistant-heat steel, for instance, turbine rotors and of other low alloy steel.

          Typical compositions of fluxes in: (%)

          SiO2+Al2O3

          CaF2+CaO+MgO

          S

          P

          36-45

          40-53

          ≤0.05

          ≤0.08

          Mechanical properties of deposited metal: (GB/T12470  F48A0-H10Mn2)

          Test Item

           ó s (Mpa)

           ó b (Mpa)

            δ 5( %)

           Akv (J) 0℃

          Guaranteed Value

          ≥400

          490-660

          ≥20

          ≥27

          Test Value

          414

          530

          30

          115

          Remarks:
              1.Before welding, fluxes need to be baked two(2) hours at 300-350℃.
              2.Removal of rust, oil, dirt, water, impurities etc in welding-areas.

           

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