Submerged Arc Welding Flux Sj301

• state: Granule
• pH: Neutral
• Type: None
• Melting Point: Non
• Chemical Composition: CaF₂=10%-30%
• Function: Remove Oxides, Protect Weld Metal, Make the Liquid Solder Flow
• Model NO.: HFX-SJ301
• Application: Submerged-arc Welding
• Manufacturing Method: Smelting
• Transport Package: Pallet
• Specification: 10-40 mesh
• Trademark: WELDBST
• Origin: P. R. C.
• HS Code: 38109000
• Production Capacity: 50000 Mt/Year

Product Description

       Versatile flux for welding of ordinary structural steel and boiler steel maching with suitable SAW wire (such as EM12, EM12K and EL8), which can obtain smooth weld bead with flat weld interfaces free from undercut. Stable arc and good slag detachability, from shot slag in welding, no phenomenon of slag-flow are other special features of HFX-SJ301. It can be used to the single pass weld and multi-wire weld, especially to weld pipelines in various diameters.

       Flux type: Silicon Calcium
       Basicity index: 1.0
       Grain size: 2.0-0.28mm(10-60 meshes)
       Net weight: 25kg/bag
       Export markets: gloal

Compositions of fluxes (%)

SiO2+TiO2	CaO+MgO	MnO+AI2O3	CaF2	S	P
25-35	15-25	30-40	5-15	≤0.06	≤0.08

Typical mechanical properties of deposited metal

Wire matched	Yield Strength Ó s (MPa)	Tensile Strength Ó b (MPa)	Elongation δ 5%	AKV (J)
				0°C	-20°C
H08A	≥330	415-550	≥24	≥50	≥27
H08MnA	≥400	480-650	≥24	≥50	≥27
EL12	≥330	415-550	≥24	≥50	-
EM12K	≥400	480-650	≥24	≥50	-

NOTICE:
        1. Before welding, fluxes should be baked for 2 hours at 300-350°C.
        2. Removal of rust, oil, water and impurities etc. in welding area.