AWS : A5.36 E71T15-M21A4-CS1
EN ISO : 17632-A T42 4 Z M M 1 H5

Nippon Steel’s SM-3A is a copper coated, seamless, Seismic Grade 3 metal cored wire with exceptional arc stability and smooth running.

Very low hydrogen content gives excellent crack resistance. SM-3A can be used in all positions for single pass welding and multi-layer welding using dip transfer mode or similar. So using SM-3A gives maximum deposition, speed, low heat input and, with the right welding machine, can switch from horizontal to vertical welding without stopping.

Big productivity and safety advantage when you don’t have to turn a beam or workpiece, or switch to a different wire to continue. Combine with customized speed process programme on a LORCH MicorMIG welding machine for up to 30% gain in speed.

SM-3A is a metal cored wire which represents the best of Japanese technology in welding wires; seamless, extremely low in hydrogen, double copper coated, meticulous targeted flux for maximum deposition and productivity. You will not find a better performing metal cored wire in the Australian/NZ market.

SM-3A consists mainly of metal flux and this, combined with the concentration of current through the narrow sheath enhancing high melt-off rates, ensures very high deposition and thus high productivity.

One out-standing feature is its very low hydrogen content, typically 2ml/100g which, thanks to the seamless design and double copper coating, remains virtually impervious to moisture during shipping and storage. Minimises risk of hydrogen or cold cracking.

The double copper-coating enhances current transfer between contact tip and wire resulting in a stable arc as well as maximising smooth feedability of the wire during use.

Only minor surface silica isles are produced which greatly reduces re-ignition problems and ensures the welding of multiple layers without the need for de-slagging between passes.

Very low spatter and fuming, virtually no clean-up work required.

The exacting engineering and manufacture also ensure perfect roundness of the wire, which produces stable and even wire feeding, no twisting or pig-tailing.

Nippon SM-3A is used with Ar/CO2 mix shielding gas.

To trial this wire, please call Welding Engineers NZ Ltd, 64 9 634 1949.

NSSW SM-3A Horizontal Welding

NSSW Flux and Cored (SM-3A) Vertical Up Welding