Submerged arc welding is a process in which the joining of metals is produced by heating with an arc or arcs between a bare metal electrode or electrodes and the work. The arc is shielded by a blanket of granular fusible material on the work. Pressure is not used. Filler metal is obtained from the electrode or from a supplementary welding rod
Flux: Both agglomerated and fused fluxes are available for use with different grades of wires.
AGLOMERATED SUBMERGED ARC WELDING FLUX FOR STRUCTURAL STEEL
- GRADES
AWS A5.17 F7A2/EL8
AWS A5.17 F7A0/EM12K - CHARACTERISTICS
JACKSUN EL-8 is a copper coated mild steel electrode for Submerged Arc Welding (SAW) of mild & medium carbon structural steels.
• It is suitable for welding 490 MPA grade steel structures such as machinery, steel pipes, bridges & pressure vessels.
• Excellent crack-resistance.
• Easy to operate with easy slag removal - CHARACTERISTICS
JACKSUN EM-12K is a medium manganese alloyed copper coated steel wire for submerged arc welding and electro slag welding of medium and high tensile steels. It is suitable for welding 500-550 MPA grade steel structures such as ship building, bridges, pressure vessels & building construction.
• Excellent crack-resistance
• High productivity and low electricity consumption - APPLICATIONS
Excellent for general applications involving single or limited pass welding
PACKAGING DATA
25KGX PER BAG
GRAIN SIZE
0.25 – 2.00 MM
REDRYING
2500 C 1 HOUR
WELD CHEMISTRY
| Wire | C% | Mn% | Si% | S% | P% |
|---|---|---|---|---|---|
| EL8 | 0.06 | 1.00 | 0.65 | 0.025 max | 0.030 max |
| EM 12 K | 0.07 | 1.35 | 0.75 | 0.25 max | 0.030 max |
Packaging
| Size | AI2O3 + MnO% | CaO + MgO% | CaF2% | H2O% |
|---|---|---|---|---|
| 30 | 55 | 5 | 5 | <0.5 |
FLUX COMPOSITION (APPROX)
| SiO2 + TiO2 % | AI2O3 + MnO% | CaO + MgO% | CaF2% | H2O% |
|---|---|---|---|---|
| 30 | 55 | 5 | 5 | <0.5 |
WELDING CURRENT SETTINGS AND PARAMETERS
| S.NO | SIZE IN MM | CURRENT (DC+) AMPS |
|---|---|---|
| 1 | 1.20 | 120 - 300 |
| 2 | 1.60 | 180 - 430 |
MECHANICAL PROPERTIES OF WELD METAL
| YS MPa | TS MPa | ELONGATION (L=4d)% | IMPACT (CVN) AT - 200 C) |
|---|---|---|---|
| 390 MIN | 490 - 670 MIN | 22 MIN | 27 MIN |