SJ301 agglomerated welding Flux
Standard: GB/5293-1999 F4AO-H08A F5AO-H10Mn2
EQUIV: AWS-A5.17 F6A0-EL12 F7A0-EM12K
SJ301 is a kind of silicon-calcium sintered flux, 10-40 mesh (φ1.7-0.38mm) and the
basicity is 1.0-1.1. Either alternate or direct current is used, while the welding wires
must be connected with the positive electrode when direct current is used. Produced
with excellent technology, the flux has the properties of fine slag detachability and
fine welding bead appearance.
Usage:
The flux is fit for the submerged arc welding of low carbon steel and low alloy steel,
as well as the fast single-way and double-surface welding of thin steel sheet. And it
is usually used for the sumberged arc welding of liquefied gas storage tanks, gas
bottles, and pipeline steel.
Package:
25kg per kraft paper bag; 1000kg per Jumbo bag
Cautions:
1. The welding flux must be baked for 2hours at the temperature of 300-350ºC before
build up welding.
2.Some foreign substances such as rust , grease and moisture on the weldment
should be removed before welding.
| Chemical composition of the flux SJ301(%): |
| SiO2+TiO2 |
CaF2 |
Al2O3+MnO |
CaO+MgO |
S |
P |
| 30-40 |
5-13 |
25-30 |
5-10 |
≤0.05 |
≤0.05 |
| Mechanical properties of the deposited metal: |
| Wires matched |
Standard models |
Yield point
σs (MPa) |
Tensile Strength
σb(MPa) |
Elongation
δ5(%) |
Impact value
AKV (J) |
| AWS EL12 |
F6A0-EL12 |
≥350 |
≥420 |
≥22 |
≥50(0ºC) |
| AWS EM12K |
F7A-EM12K |
≥410 |
≥500 |
≥22 |
≥50(0ºC) |
Our Service:
1. Professional service for products
2. Much more competitive price
3. Honest and excellent supplier
4. Delivery time is shorter than others.
5. We believe the good quality is the basis for cooperation.
6. We could provide the samples for test to you.
7. Our company policy is Quality First, and to establish Long Time business,
not just one time
How to contact us?
Mr. Jacky-MIGHTY QINGDAO METAL MATERIALS CO., LTD.
Tel: +86-0532-66010291
Add: Room 705, Building A, Heda Office Building, NO. 175, Tailiu
Road, Shibei Strict, Qingdao, China
Audited Supplier 
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