ZT · HJ331 (medium manganese high silicon low fluorine)
■ Detailed explanation
Complies with: Classification Rules for Steel Seagoing Ships II YTM III YM
Equivalent: AWS-A5.17 F6A2-EH12 F7A2-EH14
JIS Y6F53-W41
Note: HJ331 is a smelting medium-manganese and high-silicon flux, which is in the shape of grass green glass with a particle size of 12-60 mesh. Adopt AC and DC, the welding wire is connected to the positive electrode during DC welding. Good welding process performance and good crack resistance.
Uses: with H08A, H08MnA and H10Mn2GA (EH14) and other welding wires, can weld (A3, 20G, 16Mn, 16MnR, A32, E36, etc.) low-carbon steel low alloy steel and high-strength steel for welding shipbuilding and pressure vessels.
Reference composition of flux (%)
SiO2+MnO+Al2O3 | CaF2+CaO+MgO | S | P |
20-60 | 10-30 | ≤0.06 | ≤0.08 |
Mechanical properties meet the classification requirements for steel sea vessels II YTM IIIYM
Pilot projects | ó b Mpa | ó s Mpa | δ 5 % | 冷彎(a=120) | Akv(J) | |
0℃ | -20℃ | |||||
H10Mn2G+D36(Full welding guarantee value) | 490-660 | ≥375 | ≥22 | OK | \ | ≥34 |
H10Mn2G+D36(Docking guarantee value) | ≥490 | \ | \ | OK | ≥34 | \ |
· Precautions:
1. The flux must be baked for about 2 hours at 300 ℃ -350 ℃ before use.
2. Before welding, rust, oil, moisture and other impurities on the weldment should be removed.
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