Introduction: It is a kind of low-manganese and low-silicon type welding wire. It matches with high-manganese and high-silicon type welding flux. It is not sensitive to the rust on the base metal. It has excellent bead molding and slag detachability. It is the most frequently used submerged-arc welding wire. Monopole or dipole. AC/DC. Application:  Used together with fused flux 431 or sintered fluxes 301 and 501. Used for both high speed welding and filling welding on 50kg class base metals.

Chemical Composition of Welding Wire(%)

C Mn Si P S Ni Cr Cu 0.07 0.40 0.021 0.014 0.011 0.008 0.016 0.15 Mechanical Properties of Deposited Metal Test Items Rm ReL/Rp0.2 A KV2(J) Flux Used Together (Mpa) (Mpa) (%) 0℃ -20℃ SJ301 415-550 ≥330 ≥22 — ≥27 HJ431 415-550 ≥330 ≥22 ≥27 —

Wire Size diameter(mm) φ2.5 φ3.2 φ4.0 φ5.0