JQ.SJ301 Calcium-silicate Type Sintered Flux

JQ.SJ301 Calcium-silicate Type Sintered Flux

JQ.SJ301
GB:F4A2-H08A F5A2-H08MnA
AWS:F6A2-EL8 F7A2-EM12
Current:If used together with appropriate wires (such as H08A, H08MnA and H08MnMoA), they can be used for welding general structural steel, boiler steel, pipeline steel, etc. Able to be used for multi-pass welding, single pass welding by both sides and multi-wire
Main Applications:

JQ.SJ301

According with GB F4A2-H08A F5A2-H08MnA
Corresponding with AWS F6A2-EL8 F7A2-EM12
DIN BOS198AC10SKM


Introduction: JQ.SJ301 is a kind of calcium-silicate type sintered flux. The alkalinity is approximately 1.0. Black round grains. The granularity is 2.0~0.28mm (10~60 meshes/inch). It has excellent welding performance, stable arc, good slag detachability and beautiful appearance of weld. One of the physical characteristics of the slags is short slags. In submerged-arc welding with short arc, the slag does not fall off, which is especially suitable for welding all kinds of circumferential seams. AC/DC. When welding with direct current, the wire should be connected to the positive terminal.


Uses: If used together with appropriate wires (such as H08A, H08MnA and H08MnMoA), they can be used for welding general structural steel, boiler steel, pipeline steel, etc. Able to be used for multi-pass welding, single pass welding by both sides and multi-wire welding. Especially suitable for welding pipelines with all kinds of diameters.


Reference Composition of Flux(%)
S
P
SiO2+TiO2
CaO+MgO
Al2O3+MnO
CaF2
≤0.06
≤0.08
25~35
15~25
30~40
5~15

Mechanical Properties of Deposited Metal
Items Rm ReL或Rp0.2 A KV2(J)
Flux Used Together (MPa) (MPa) (%) Room Temperature 0℃ -20℃
H08A 410~550 ≥330 ≥24 ≥70 ≥50 ≥27
H08MnA 530~630 ≥400 ≥24 ≥70 ≥50 ≥27
H08MnMoA 600~700 ≥480 ≥20 ≥60 ≥50 ≥27

Instructions:
1.The fluxes should be baked under 300~350℃ for 2 hours before using.
2.The stains on the weldments, such as rust, oil stains, moisture, etc., must be cleared away before welding.

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