Esab Spoolarc 87HP description: Spoolarc 87 HP is a high manganese carbon steel wire. It features an optimized manganese to silicon ratio to produce excellent appearing welds over a wide range of welding parameters. It also produces excellent weld metal mechanical properties. Spoolarc 87 HP is suitable for welding over moderate amounts of rust and scale. This wire is widely used for robotic welding applications in the automotive industry, and fabrication of heavy equipment and farm implements. Spoolarc 87 HP is also available as a TIG rod.