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	CaF2	Al2O3+MnO	CaO+MgO	FeO	S	P
40～44	3～7	35～42	7～14	≤1.80	≤0.06	≤0.08

(Mechanical Performance)
Applied to H08A welding wire

Tested Items	屈服强度бs (Mpa)	抗拉强度бb (MPa)	延伸率δ5	冲击功AKV(-20℃) （J）
Common Results	≥340	≥420～550	≥22%	≥34