Hobart SDX CrMo2-EB3R description: SDX CrMo2-EB3R is a copper-coated, low-alloy, solid wire with a nominal 2.25% chromium/1% molybdenum weld deposit for the submerged-arc welding of creep-resistant steels having a similar composition. SDX CrMo2-EB3R is low in impurities/residuals elements, which is beneficial to step-cooling applications. Hobart recommends using this wire with the following flux(es): SWX 150.