N80 Seamless Casing Pipe includes N80-1 and N80-Q steel grades. These 2 grades are the same in both of chemical composition and mechanical properties. The only difference is the Heat Treatment. The latter one N80-Q steel pipe requires heat treatment before they are to be manufactured into casing pipes.

Product Description

Seamless steel casing pipe with coupling and thread protector
Standard: API 5CT
OD: 4-1/2''-----20''
Material: H40, J55, K55, N80, L80, P110, Q125.
Threads: LTC ( Long Round Thread), STC ( Short Round Thread), BTC ( Buttress Thread)
Length:R1(4.88-7.62m), R2(7.62-10.36m), R3(10.36-14.63m))

End: Beveled, Square cut. And pipe protection cap specially for casing and tubing.
Surface: Corrosion proofing water based paint
Heat treatment: Normalized, Quencher+Temper


Packing: Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips 


Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield 
 strength, Elongation), Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, Impact Test etc), Exterior Size Inspection, Nondestructive Test (Ultrasonic flaw detector, Eddy current flaw detector), Hydrostatic Test.
Mill Test Certificate: EN 10204/3.1B