Hobart SWX 150 is a high basicity, fluoride-basic agglomerated flux for low-temperature, high-strength and creep-resistant applications, including CTOD
requirements. Its neutral character promotes a homogeneous weld chemistry and consistent mechanical properties throughout thick multi-layer welds. It produces low oxygen weld metal (~300 ppm), resulting in excellent impact toughness down to -60°C (-76°F) and below SWX 150 has a very good slag detachability, also in narrow gaps, along with smooth bead finish and tie-in. SWX 150 can be used in single- and multiple-wire operation and performs equally well on AC and DC+. It is used for normal construction steel, high-strength steel, low-temperature steel and creep-resistant steel in demanding sectors such as offshore fabrication, pressure vessels and nuclear  components. Use of the flux in combination with Hobart cored wires offers further opportunities to improve weld metal quality and productivity, making use of unique cored wire properties. Typical CTOD test results with SDX S3Si-EH12K solid wire, tested at -20°C (-4°F): 1.01, 1.01, 1.09 mm.