Oil County Tubular Goods


API 5CT Basics

Outside Diameter (OD) up to 4″ +.031″, -.031″
Outside Diameter (OD) 4.5″+ +1%, -0.5%, not to exceed .125″
Wall Thickness +0, -12.5%
Drift diameter up to 2.875″ OD w/42″ mandrel Diameter -.094″
Drift diameter 3.5″ to 8.625″ with 6″ mandrel Diameter -.125″
Drift diameter 9.625″ to 13.375″ with12″ mandrel Diameter -.156″
Straightness 4.5″+ 0.2% end-to-end (PE),
.125″ in 5′ at each end
Length Range 1 casing 16-25′
Length Range 2 casing 25-34′
Length Range 3 casing 34-48′
Length Range 1 tubing 20-24′
Length Range 2 tubing 28-32′
Length pup joints (2,4,6,8,10 &12′) +3″, -3″
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Kelly Pipe is proud to offer a wide variety of convenient, valuable pipe-related services to our clients.
Many of these services are value-added based on the nature of your order.


External Coatings

Internal Coatings

Pup Joints



Heat Treating

The Ultimate Pipe Source.

Contact one of our sales professionals now to get a competitive quote for any of your pipe needs. We pride ourselves as a reliable supplier of industrial pipe offering over 100 years of superior service. Trust Kelly to meet your needs and exceed your expectations while remaining competitive.

Corporate HQ   800-305-3559
Bakersfield, CA   661-399-4540
Phoenix, AZ   602-256-2990
Sacramento, CA   916-640-1859
Salt Lake City, UT   801-973-8200
Santa Fe Springs, CA   562-868-0456
Vancouver, WA   360-737-1848
Eastern Region HQ   713-692-7473
Broussard, LA   337-369-6788
Denver, CO   303-288-3033
Houston, TX   713-692-7473
Hammond, IN   708-331-0300
Fairless Hills, PA   215-550-6325
Pineville, NC   704-504-3302
Nisku, Alberta, CN   780-955-5510