With years of experience in production SJ-503, GUJIN can supply a wide range of submerged arc welding flux SJ-503. High quality submerged arc welding flux can meet many applications, if you need, please get our online timely service about submerged arc welding flux. In addition to the product list below, you can also customize your own unique submerged arc welding flux according to your specific needs.
Welding flux SJ-503 is an aluminum titanium type acidic sintered flux with a alkalinity of approximately 0.7. It is a gray circular particle with a particle size of 10-60 mesh. It can be used for both AC and DC, and when using DC power for welding, the welding wire is connected to the positive electrode. Stable arc combustion, beautiful weld formation, easy slag removal, and excellent impact toughness of the deposited metal. Especially suitable for high-speed welding, with strong resistance to porosity.
Welding flux SJ-503 In combination with welding wires such as H08A and H08MnA, it is mainly used for welding ordinary low-carbon steel and certain low alloy steel structures. Suitable for medium thickness steel plate structures, can be used for multi pass welding, single wire welding, or multi wire welding.
1.The oil soil,moisture,iron rust and other foreign substances must be removed from the welding joint.
2.Submerged Arc Flux SJ-503 must be baked at 300C-350 C for 2 hours before use.
SiO₂+TiO₂ |
Al₂O₃+MnO |
CaF₂ |
S |
P |
25-35 |
50-60 |
5- 15 |
≤0.06 |
≤0.06 |
Basicity of the Flux:B//W=0.5-0.8
Wire |
Standard Modeis |
Yield Strength (MPa) |
Tensile strength(MPa) |
Impact energy AKV(J) |
Elongation |
H08A |
F4A2- H08A |
≥400 |
480-650 |
≥47 (0C) |
≥22% |
Packaging form:Bagged, 25kg/bag .40 bags/ton.
Minimum order quantity: 5ton