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Hobart metal-cored wire minimises weld cracking risks

World Pipelines,

The new Hobart® FabCOR® CVN metal-cored wire has been formulated to provide excellent impact properties at ultra-low temperatures to reduce the risk of cracking in severe applications, including oil/gas piping and storage vessel welding, heavy equipment manufacturing, and structural fabrication.

Low diffusible hydrogen levels (under 3 ml per 100g of weldment) further increase cracking resistance, reducing the cost and downtime that rework makes necessary.

As with other Hobart metal-cored wires, the FabCOR CVN wire offers high deposition rates and low spatter levels (compared to solid wires) to help improve productivity and improve weld quality. The wire’s smooth arc characteristics assist welding operators in the creation of a uniform weld bead, and the minimal slag coverage reduces cleanup time and minimises the chance of inclusions. The FabCOR CVN wire is capable of maintaining good mechanical properties after stress relieving, making it suitable for use in critical applications that require post-weld heat treatment (PWHT).

The FabCOR CVN wire is available in three wire diameters – 0.045 in., 0.052 in. and 0.0625 in. It operates with a 75 – 95% argon/CO2 balance and provides a tensile strength ranging from 77 000 - 86 000 psi. The wire can be used for single- or multi-pass welding in manual, mechanised or automated applications.

Adapted from press release by Katie Woodward

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