Union ER 80S-D2 is a solid MIG/MAG wire for welding creep-resistant CrMo steels. It is used on boilers, steam lines, refinery plant and parts working at elevated temperature.
Among the parent materials it covers P235GH, P460M, S460N, S460MC, ASTMA 36, ASTMA 161 and ASTMA 217. The wire does well on pipe welding, fill passes included, and on boilers and pressure vessels under technical inspection.
- Classification EN ISO: 21952-A, G ZMn4MoSi
- AWS classification: A5.28 / SFA-5.28, ER80S-D2 / ER90S-D2
- Diameters: 0.9 / 1.14 mm
Plan the preheating and the post weld heat treatment to the WPS for the grade in hand, CrMo steels harden in the heat affected zone. Watch the wire stick-out from the contact tip, too long a one lowers the arc voltage and worsens the fusion. Set the gas flow so the pool is covered over the whole length of the bead, and shield the station when you work in wind.
