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.
Diffusible hydrogen content is as low as solid wire, excellent crack resistance.
Exceptional for a metal cored wire in that its specifications are such that it can be used in all positions for single pass welding.
So Nippon SM-3A can give maximum deposition, speed, low heat input and you can go from horizontal to vertical welding without stopping, with the right gear.
Combine with customized speed process programme on a Lorch MicorMIG welding machine for up to 30% gain in speed.
Welding Engineers NZ Ltd is the Authorised Distributor for SM3A in Australia and New Zealand and was first to introduce the new technology metal cored wires to our market.
SM3A 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.
SM3A 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 coppercoating, 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 ensures perfect roundness of the wire, which produces stable and even wire feeding, no twisting or pig-tailing.
Nippon SM3A is used with Ar/CO2 mix shielding gas.
To trial this wire, please call Welding Engineers NZ Ltd, 64 9 634 1949.