| Code | Steel_Grade |
| Name | Steel Grade |
| Parents | Property > Grade |
| Description | Grade used to qualify the characteristics of the steel. For tubulars, grade determines the minimum yield strength and thus the burst and collapse pressures and is of importance for the proper choice of slips. The grade can be either custom, i.e. defined by the supplier, e.g. US Steel FS80, Vallourec 110 VS 22, or defined by the API, e.g. C75, J55, N80, E. Number in the API grade means the minimum yield strength in kpsi (N80: 80,000 psi). API grades for Tubing, Casing and Drill pipes can be found in the API specifications 5xx. |
