What is N80 steel?
N80 steel, classified under the API (American Petroleum Institute) specifications, is a carbon steel grade primarily used in the oil and gas industry for the manufacturing of tubular products such as casing and tubing.
What is the specification of API 5CT N80?
Specification includes 1.9 inch(48.3mm), 2 7/8 inch(73.03mm), 2 3/8 inch(60.3mm), 3 1/2 inch(88.9mm), 4 1/2 inch(114.3mm), 4 inch(101.6mm) etc. N80 mechanical properties are higher than other types of API 5CT. The oilfield tubing can be classified as EUE type and NUE type.
What is the chemical composition of N80?
For grade N80 type Q the chemicals composition details as: Unit in %, C content 0.28-0.32 (OD above 9 5/8" 244.48 mm, C content is 0.22-0.29), Si content 0.17-0.37, Mn content 1.30-1.45 (OD above 9 5/8" 244.48 mm, Mn content is 1.3-1.60, maximum Cr 0.25, maximum Ni 0.20, maximum Cu 0.20, V 0.07-0.12, maximum P 0.025, maximum S 0.020.
What is the difference between L80 and N80?
N80: yield strength of 379MPa ~ 552MPa; tensile≥517MPa; minimum elongation of N80 is 19%. L80: yield strength of 379MPa ~ 552MPa; tensile≥655MPa; minimum elongation of L80 is 15%.