WD-8600 Agglomerated Flux For S. A. Welding
Standards: GB/T5293-1999 F4A2-H08MnA AWS A5. 17-2004 F6A2-EM12K
GB/T12470-2003 F48A4-H10Mn2 AWS A5. 17-2004 F7A4-EH14
Introduction
WD-8600 is an agglomerated aluminum-basic type soldering flux for submerged arc welding with a basicity index of BIIW 1. 1-1. 3. The flux is taup or charcoal grey spherical granular, grain size is from 10 to 60 mesh. When direct current weld the wire, it meets the positive electrode. WD-8600 can be welded with AC or DC at up to 1000A. Electric arc stability, forming artistically, it has an excellent slag detachability. The weld metal is pure. It has high impact toughness.
The flux has low moisture pick-up granular stability. As the bulk density is low, its consumption rate is few. If it coordinates the suitable welding wire, it can be welded a variety of low-alloy steel wire structure. When it welds the boiler cooling wall, its welding speed may reach above 70mh/h, especially suitable high speed welding thin steel plate, narrow groove of thick plate and narrow-gap structure.
Applications
Welding of the boilder firm type water cool wall, high-speed flat and horizontal fillet.
| SiO2+TiO2 | CaO+MgO | Al2O3+MnO | CaF2 | S | P |
| 30 | 15 | 40 | 10 | ≤0. 06 | ≤0. 08 |
Typical mechanical property of deposited metal
| Matching wire | Yield strength(MPa) | Tensile strength(MPa) | Elongation(%) | Charpy V notch impact strength(J) |
| F6A2-EM12K | ≥360 | 450-550 | ≥22 |
-29°C ≥34 -40°C —— |
| F7A4-EH14 | ≥400 | 480-650 |
≥24 |
-29°C ≥60 -40°C ≥34 |
1. Before welding, flux must be baked for 2 hours at temperature of 300-350°C.
2. Remove rust, oil, moisture and etc. from the weldment.