Below is a list of our common pipe sizes, along with the grades: Tubing: 60.3mm OD through 114.3 mm OD, Grades J55 & L80 Casing: 114.3mm OD – 4.5″ Grades J55, K55, SOO55, L80, PS-80, N-80, TN-80SS and P110 139.7mm OD 5.5″ Grades: J55, K55, SOO55, L80, PS-80, N-80, TN-80SS and P110 […]