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

The use of special steelmaking practice giving high steel cleanliness gives CarElso® 70 HIC excellent resistance to wet H 2 S cracking such as HIC. This steel also displays excellent weldability and toughness properties.

This steel is particularly suitable for pressure equipment in both refinery and gas treatment applications under sour service conditions, where wet H 2 S corrosion can be a problem (e.g. high pressure separators).