McKay® Speed D2 is a premium copperless solid wire, with a wire chemistry that includes the addition of 1/2% molybdenum to provide increased strength for applications requiring tensile strengths of 80,000 to 90,000 psi. Speed D2 has higher levels of manganese and silicon to control porosity, provide radiographic quality welds and produce a smooth, flat bead. Speed D2 will provide trouble-free performance in a variety of applications from pulse to high-speed spray to lower speed short-arc applications. Speed D2 is designed to provide a smooth, stable arc with low spatter levels with 100% CO2, argon rich/ CO2, argon/oxygen and other commercially available shielding gases.

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