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JQ.SJ303GS
天津市金桥焊材集团股份有限公司

TIANJIN GOLDEN BRIDGE WELDING MATERIALS GROUP CO.,LTD.

GB/T F4A2-H08A AWS F6A0-EL8
JQ.SJ303GS is a kind of Aluminum-silicon type acid sintered flux, the alkalinity is about1.0. It is a circular particles and the size is 2.0 ~ 0.28mm (10 ~ 60 mesh). With excellent welding technological properties, stable arc, easy slag detachability, beautiful appearance; the flux has relatively strong anti-blowhole ability. It is insensitive of rust and high-temperature oxide film under small amount. AC and DC both are applied. Connect the wire to positive end while using DC. Welding speed can reach at 2m/min.
Welding with proper welding wires (such as H08A, H08MnA, and H08MnMoA) it can be used for welding low carbon steel and low-alloy steel structure such as ship, boiler, pressure vessel, especially suitable for high-speed welding thin plate.
1. The welding wires should be preheated 2 hour at 300~350℃ before welding. 2 The impurities such as rust, oil stains and moisture must be cleared off of the work piece.