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Welding flux

Welding flux for a variety of welding methods and a wide range of applications.

The Sandvik program includes flux for:

Submerged arc welding (SAW)
Electroslag welding (ESW)
Joining of plates with wire electrodes
Stainless steel, high-alloy steels and nickel alloys

When choosing a welding flux for a given combination of strip/wire electrode and parent metal, the welding parameters also have to be considered to obtain the desired composition of the weld metal.

All welding fluxes are agglomerated. Basicity according to Boniszewski.

Flux for submerged-arc welding (SAW)
Flux	Characteristics¹⁾	Applications
Sandvik 10S	Slightly Cr compensated Basicity 1.0	General purpose flux for both strip and wire electrodes of CrNi and CrNiMo steels, stabilized or non-stabilized. Good slag removal. Gives about 2% lower ferrite content than 10SW.
Sandvik 10SW	Cr compensated Basicity 1.0	General purpose flux for both strip and wire electrodes of CrNi and CrNiMo steels, stabilized or non-stabilized. Good slag removal. Gives about 2% higher ferrite content than 10S.
Sandvik 15W	Non-Cr compensated Basicity 1.7	Special purpose flux for wire electrodes of Cr-Ni and CrNiMo steels, stabilized or non-stabilized as well as duplex, super-duplex and fully austenitic grades, e.g. 20.25.5.LCu. Good slag removal. Gives good impact properties. The Nb burn-off is very small when using stabilized electrodes, such as 19.9.Nb.
Sandvik 31S	Non-Cr compensated Basicity 1.1	Single purpose flux for both strip and wire electrodes of 25.22.2.LMn, intended for urea applications. Good slag removal.
Sandvik 50SW	Non-Cr compensated Basicity 2.4	General flux for strip and wire electrodes of nickel alloys. Good slag removal.
Sandvik 52W²⁾	Non-Cr compensated Basicity 1.4	Flux for wire electrodes of nickel alloys as well as fully austenitic CrNi, e.g. 25.20.C, or CrNiMo grades, e.g. 27.31.4.LCu. Good slag removal.

1) All welding fluxes are agglomerated. Basicity according to Boniszewski.

2) Contact us for more information.

Flux for electroslag welding (ESW)
Flux	Characteristics¹⁾	Applications
Sandvik 37S	Non-Cr compensated Basicity 3.8	General purpose flux for strip electrodes of CrNi and CrNiMo steels, stabilized or non-stabilized, duplex and fully austenitic grades, e.g. 25,22,2.LMn. Excellent slag removal and bead appearance.
Sandvik 47S	Non-Cr compensated Basicity 4.0	General purpose flux for strip electrodes of CrNi and CrNiMo steels, stabilized or non-stabilized as well as duplex and fully austenitic CrNiMo grades, e.g. 20.25.5.LCu. Excellent slag removal and bead appearance. Low Si pick up.
Sandvik 48S²⁾	Non-Cr compensated Ni alloying. Basicity 4.0	Special nickel alloying flux for strip electrodes of mainly super-duplex type.
Sandvik 49S	Non-Cr compensated Basicity 4.4	High speed flux for strip electrodes of CrNi and CrNiMo steels, stabilized or non-stabilized. Excellent slag removal and bead appearance.
Sandvik 59S	Non-Cr compensated Basicity 5.0	Flux for strip electrodes of nickel alloys. Excellent slag removal and bead appearance. Gives good safety against micro cracking.