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LJ-SJ301
Jinan Jincai Welding Material Co. , Ltd.

Conforming to::GB/T5293       S43S0CS-SU08A      S49S0CS-SU26

Equivalent to: AWS-A5.17   F6A0-EL12    F7A0-EM12K

DIN BSC 198AC10SKM

DESCRIPTION AND APPLICATIONS

Versatile flux for welding of ordinary  structural steel and boiler steel in combination with appropriate SAW wire(such as EM12,EM12K and EL8),which can obtain smooth weld bead with flat weld interfaces free from undercut. Steadily arc and easy slag removal, no phenomenon of slag-flow are other special features of LJ-SJ301. It can be applied to the Multi-pass weld and multi-wire weld, especially to weld pipelines in various diameters.

• Flux type: Silicon-Calcium

• Basicity index: 1.0

• Grain size:2.0-0.28mm(10-60meshes)

Compositions of fluxes (%)

SiO2+TiO2

CaO+MgO

Al2O3+MnO

CaF2

S

P

 25-35

  15-25

30-40

5-15

≤0.035

≤0.04

Typical all weld metal mechanical property

Wire

Yield Stress

Tensile Strength

Elongation

AKV(J)

EL12

≥330Mpa 

  415-550Mpa

≥22%

≥50/0℃

EM12K

≥400Mpa

480-650Mpa

≥22%

≥50/0℃

Remark

1.       Before welding, fluxes should be baked for two hours at 300-350℃.

2.       Removal of rust, oil, dirt, water, impurities, etc in welding-areas.

 

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