Excellent welding technology properties Beautiful welding gap Good slag detachability

SJ301 is an agglomerated calcium-silicate type flux with a basicity index of BIIW 1.0. The flux is spherical granular, grain size is from 10 to 60 mesh. A short slag is produced, thus allowing circumferential welding on small-diameter work pieces without the risk of uncontrolled slag. SJ301 can be welded with AC or DC at up to 1200A (single-wire process). 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 be used with wires with a low Mn content. The special production method ensures that the flux has low moisture pick-up and granular stability. Flux shall be capable of meeting the applied requirements. As the bulk density is low, so is the consumption rate.

Chemical Component(%)

SiO2+TiO2	CaO+MgO	Al2O3+MnO	CaF2	S	P
25-35	15-25	30-40	5-25	≤0.06	≤0.08

Deposited metal mechanical feature

Item Welding	σs(Mpa)	σb(Mpa)	δ5(%)	AKV(J)
				20°C	0°C	-20°C
H08A	≥330	410-550	≥24	≥70	≥50	≥27
H08MnA	≥400	530-630	≥24	≥70	≥50	≥27
H08MnMoA	≥480	600-700	≥20	≥60	≥50	≥27

Agglomerated Flux HPMF-SJ301