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Standard: GB/5293-1999 F4AO-H08A F5AO-H10Mn2
EQUIV: AWS-A5.17 F6A0-EL12 F7A0-EM12K
SJ 301 EL12 EM12K welding flux is a kind of fluoride-alkaline-type slag-serial sintered
flux, mesh 10-60 meshes (2.0-3.0mm), basicity 1.6-1.8. It has great capacity of
sulphur removal, phosphor removal and anti- rust. The technology has a good
performance, easy to deslag and with fine appearance of weld, even in the narrow
gap of deep slope entrance. The metal welding seam has a good plastic -toughness,
with low diffusion of hydrogen and fine cold and heat crack resistance.
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) |
(Mechanical Performance of the Deposited Metal):
| Wires | Standard Models | σs (Mpa) |
σb (Mpa) |
δ5 | Akv (J) |
| HO8A HO8MnA |
F4A2-HO8A F5A4-HO8MnA |
≥350 ≥410 |
≥420 ≥500 |
≥22% ≥22% |
≥27(-20ºC) ≥27(-40ºC) |
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