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(%)

5.Mechanical Performance of the Deposited Metal