Description: HJ431 is a fused type high Manganese-oxide flux with vitreous granule of reddish brown to light yellow color, about 8-40 mesh in two sizes. It is suitable for use with AC and DC. This flux is of a good welding usability.
Application: In combination with H08A,H08MnA and H10Mn2 wires, this flux is suitable for welding of low carbon steels and some low alloy steel (such as 16Mn and 15MnV)in producing of structures, boilers, ships, pressure vessels, etc. It can also be used for electro slag welding.
Guidelines For Usage:
1.Dry the flux at 250°C for 2 hours before use.
2.Completely remove rust, oil and dirt from the groove surface prior to welding.
Typical Flux Composition Range (%)
SiO2+MnO
CaF2+CaO
Al2O3+MgO
S
P
74-82
10-14
9-12
≤0.06
≤0.08
Mechanical Properties of Weld Metal:
Test Item
σb
σs
δ5
AKV(J)
(MPa)
(MPa)
(%)
0°C
Standard Value
415∼550
≥330
≥22
≥27
Test value
504
388
30
110
