Description: HJ331 is a fused type medium manganese-oxide flux with vitreous granule of green color about 12-60 mesh in size. It is suitable for use with AC and DC power source.and it shows good welding usability, easy slag removal and smooth bead appearance.
Application: In combination with H08MnA,H10Mn2G(EH14) wires, this flux is suitable for welding carbon steel, low alloy steel and high tensile strength steel(such as A3,20G,16Mn,16MnR,A32,36,etc.) for ships and pressure vessel.
Guidelines For Usage:
1. Dry the flux at 300∼350°C for 2 hours before use.
2. Completely remove rust, oil and dirt from the groove surface prior to welding.
3. Arc voltage should be kept below 32V.
Typical Flux Composition Range (%)
|
SiO2+MnO+Al2O3
|
CaO+MgO+CaF2
|
S
|
P
|
|
20-60
|
10-30
|
≤0.06
|
≤0.08
|
Mechanical Properties in Accordance with II YTM 、III YM of 《Rules of Classification of Ships》:
|
Test Item
|
σb
|
σs
|
δ5
|
D=2T(120℃）
|
AKV(J)
|
|
|
(MPa)
|
(MPa)
|
(%)
|
0°C
|
-20℃
|
||
|
H10Mn2G+D36 |
490-660
|
≥375
|
≥22
|
OK
|
/
|
≥34
|
|
H10Mn2G+D36 |
≥490
|
/
|
/
|
OK
|
≥34
|
/
|
|
HJ331+H08A
|
415-550
|
≥330
|
≥22
|
OK
|
/
|
≥27
|
Packing: 25kg/Kraft paper bag
