The types of steel for tubes
|API 5CT||H40, J55, K55 and N80.|
Steel is made in the electric arc furnace and they are fully killed. Tubing is delivered according of requirements PSL 1. Level PSL 2 and PSL 3 (Annex H of API 5 CT) as per agreement.
|EN ISO 3183||PSL1||L210, L245, L290, L320, L360, L390, L415 a L450.|
|PSL2||L360NE alebo X52NE, L415NE alebo X60NE.|
|API 5L||PSL1||A, B, X42, X46, X52, X56, X60 a X65.|