Description: HJ350 is a fused type medium manganese-oxide flux with vitreous granule of reddish brown to light yellow color about 8-40 mesh and 14-80 mesh in two sizes. It is suitable for use with AC and DC and it shows good welding usability.
Application: In combination with H08MnA , H10Mn2,H08Mn2Mo wires, this flux is suitable for welding of low alloy steel (such as 16Mn , 15MnV,15MnVN)important structures, ships, boilers, high pressure vessels. The 14-80 mesh size is recommended for welding of thin plates with small diameter wires.
Guidelines For Usage:
1.Dry the flux at 300-400°C for 2 hours before use.
2.Completely remove rust, oil and dirt from the groove surface prior to welding.
Typical Flux Composition Range (%)
|
MnO+SiO2
|
CaF2+CaO+Al2O3
|
S
|
P
|
|
44-45
|
37-56
|
≤0.06
|
≤0.07
|
Mechanical Properties of Weld Metal:
|
Selected
|
σb
|
σs
|
δ5
|
AKV(J)
|
|
|
(MPa)
|
(MPa)
|
(%)
|
20°C
|
-20°C
|
|
|
Standard Value
|
480-650
|
≥380
|
≥22
|
≥27
|
|
|
H10Mn2
|
524
|
408
|
31
|
115.3
|
|
|
H10Mn2G
|
539
|
414
|
31.2
|
86.0
|
|
