Description:
HJ431 is a kind of smelting-type,red brown to light yellow colored,glassy granulated flux with high manganese and silicon but low fluorine,mesh 8-14(2.5-1.5mm),8-40(2.5-0.45mm) and 14-40(1.5-0.45mm). Either alternating or direct current can be used and Welding wires must be connected with the positive electrode when direct current is used. The welding technology has good performance.
Usage:
When applied to welding wires such as H08A,H08MnA and H10MnSi,it can weld low-carbon steel and some low-alloy steel like 16Mn and 15MnV,as well as ships,boilers and high-pressure vessels. And it also can be used for electro-slag and copper welding.
Cautions:
1.The oil soil,moisture,iron rust and other foreign substances must be removed from the surface before welding.
2.The flux must be baked under 300-400℃ for 2 hours.
(Chemical Composition)(%)
SiO2 |
|
|
CaO+MgO |
|
S |
P |
40~44 |
|
35~42 |
7~14 |
|
≤0.06 |
≤0.08 |
(Mechanical Performance)
Applied to H08A welding wire
Tested Items |
屈服强度бs (Mpa) |
|
延伸率δ5 |
冲击功AKV(-20℃) (J) |
Common Results
|
≥340
|
|
≥22% |
≥34 |