Oerlikon Carborod Ni2 description: CARBOROD Ni2 is a copper coated W2Ni2 / ER 80S-Ni2 type solid TIG welding rod depositing a C-0.8Mn2.3Ni weld metal. Suitable for use with Ar shielding gas. CARBOROD Ni2 is used for the welding of 2%Ni-steels, when the weld metal toughness properties to –90C are required in the as welded conditions. For special request CARBOROD Ni2 is available with TUV approval. TIG rod for welding 2% Ni alloy steels. Excellent mechanical characteristic both when welded and after stress relieving.