Specification: AWS A5.17-97 ASME SFA 5.17Classification: F7A2-EM12K; F6A2-EL12
LJ-SJ301 is defined as a kind of calcium silicate agglomerated flux, it’s as versatile flux for welding of ordinary structural steel and boiler steel in combination with appropriate SAW wire(such as EM12,EM12K and EL8),which can obtain smooth weld bead with flat weld interfaces free from undercut. Steadily arc and easy slag removal, no phenomenon of slag-flow. It can be applied to the Multi-pass weld and multi-wire weld, especially to weld pipelines in various diameters.
Typical Composition of Flux: (in %) |
SiO2+TiO2 | MnO+AI2O3 | CaO+MgO | CaF2 | S | P | H2O | Impurity |
33.3 | 31.8 | 22.0 | 7.6 | 0.025 | 0.027 | 0.03 | 0.01 |
Mechanical Properties of All Weld Metal: (In combination with EM12K) |
Test items | C | Si | Mn | Cr | Ni | S | P | σb(Mpa) | σs (Mpa) | δ5(%) | AKV(J) |
Test value | 0.07 | 0.53 | 1.0 | ≤0.01 | ≤0.009 | 0.024 | 0.02 | 562.1 | 431.2 | 29.5 | 79（0℃） |
