Technical data sheet Welding Flux SJ301
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1.Specifications:
AWS-A5.17 F6A0-EL8 F7A2-EM12K EN760 SA CS 1 89 AC H5
2.Description:
SJ301 is an agglomerated calcium-silicate type welding flux. Basicity: 1. 0 (B//W) It is gray and round grain,mesh:10-40.Regularly shaped welds are deposited without reduction of area or interface notches. Slag detachability is good. A short slag is produced, thus allowing circumferential welding on small-diameter workpieces without the risk of uncontrolled slag. The production of large pipes(especially spiral pipe welding) is a typical application for this flux. Relatively high manganese pick-up is obtained,thus allowing the flux to be used with wires with a low Mn content.
It should be re-dried under 300-350℃ for 2 hours. Rust,grease and moisture on the weldment should be removed before welding.
3.Applications:
The flux is fit for the submerge-arc welding of low-carbon steel and low-alloy steel. Butt and flat fillet welding of miniature LPG tanks pipeline steel,,ships,vehicles,agricultural implements,machinery,boilers,bridges,structural steels.
4.Chemical Composition(%)
SiO2+TiO2 | Al2O3+MnO | CaO+MgO | CaF2 | S | P |
25-35 | 30-40 | 15-25 | 5-15 | ≤0.05 | ≤0.05 |
5.Mechanical Performance of the Deposited Metal
|
| Yield | Tensile | Elongation A | Impact Value Kv2(J) |
EL8 EM12K | F6A0-EL8 | ≥350 | 415-550 | ≥22 | ≥40(0℃) |
