CarElso® 70 is a special high strength normalised CMn steel adapted for pressure equipment. CarElso® 70 is manufactured via the electric arc furnace with desulfurisation, dephosphorisation, ladle refining and vacuum degassing to provide a reproducible, clean and homogeneous steel.

CarElso® 70 has been designed with the aim of reducing the carbon content in order to provide excellent weldability and toughness properties. The low carbon equivalent allows this grade to meet the hardness requirements of NACE MR0175/ISO 15156 under suitable welding conditions.

This steel is particularly suitable for pressure equipment in both refinery and gas treatment applications in mild sour service conditions, where wet H 2 S corrosion can be a problem.