Products & OCTG Terms

With our list of licensed API-5CT and API-5L mills, the following chart gives you, our customers, a wide range of domestic and foreign weights, grades and sizes of both tubing and casing to accommodate all of your tubular requirements.

  Size Weight     Grade  
  2.375  4.70#     H-40, J-55, L-80, N-80, P-110  
  2.875 6.50#     H-40, J-55, L-80, N-80, P-110  
  3.50  9.30#     H-40, J-55, L-80, N-80, P-110  
  Size Range     Grade  
4 1/2" 11.60#     J-55, I-80, L-80, N-80, T-95, P-110 HC 
  13.50#     L-80, N-80, C-95, P-110 & HC P-110
  15.10#     P-110, HC P-110, Q-125
  5 1/2" 15.50#     J-55  
  17.00#     J-55, I-80, L-80, N-80, P-110 HC
  20.00#     L-80, N-80, C-90, C-95, T-95, P-110 & HC P-110
  23.00#     L-80, N-80, C-90, C-95, P-110 & Q-125
  20.00#     H-40, J-55, I-65 & M-65
  23.00#     J-55, L-80, N-80, P-110
  29.00#     L-80, N-80, HC L-80, C-90, C-95, P-110, HC 
  32.00#     L-80, N-80, C-90, C-95 & P-110
  7 5/8" 26.40#     J-55, L-80, N-80, C-90, C-95 & T-95, P-110  
  29.70#     L-80, N-80, C-90, C-95, P-110 & HC P-110
  33.70#     L-80, N-80, C-90, C-95, P-110 & HC P-110
  39.00#     L-80, N-80, C-90, C-95, P-110, HC P-110 & Q-125
  8 5/8" 24.00#     J-55   
  32.00#     H-40, J-55
  36.00#     J-55, L-80, N-80, C-90, C-95 & T-95
  40.00#     L-80, N-80, HC L-80, P-110
  9 5/8" 36.00#     H-40, J-55  
  40.00#     J-55, L-80, N-80, C-90, C-95, T-95 & HC NS-110
  43.50#     L-80, N-80, HC L-80, C-90, C-95, T-95, P-110, HC P-110 
  47.00#     L-80, N-80, HC L-80, C-90, C-95, T-95, P-110, HC P-110, Q-125
  53.50#     L-80, N-80, C-90, C-95, T-95, P-110 & Q-125
  10 3/4" 40.50#     H-40, J-55  
  42.50#     J-55 
  51.00#     J-55, L-80, N-80, C-90, C-95 & P-110
  55.50#     L-80, N-80, C-90, C-95, T-95 & P-110
  11 3/4" 42.00#     H-40  
  54.00#     J-55 
  60.00#     J-55, L-80, N-80, C-90, C-95, T-95, P-110 & Q-125
  65.00#     L-80, N-80 C-90, C-95, T-95, P-110 & Q-125
  13 3/8"     48.00#         H-40  
  54.50#     J-55 
  61.00#     J-55 
  68.00#     J-55, L-80, N-80, HC L-80, C-90, C-95, T-95 & P-110

OCTG Terms

The definitions listed below are a sample of some of the most commonly used terms for Oil Country Tubular Goods (OCTG). We hope this will help you in understanding the verbiage used in working up a bid or even ordering tubulars.

API American Petroleum Institute
Bevel The angle formed between the prepared edge of the end of the pipe and a plane perpendicular to the surface of the member. The standard bevel for line pipe is 30o to facilitate welding.
Box Internal (female) threaded end.
BTC Buttress threaded and coupled.
Burst Internal pressure at which tube will yield -  which is often tested hydrostatically.
Burst Test A destructive hydraulic test employed to determine actual yield strength and ultimate strength of both seamless and welded pipe.
Casing Pipe used as a structural retainer for the walls of a drilled hole.
Coupling This is the threaded sleeve used to connect two lengths of pipe.
Cut Lengths Pipe cut to a specific length as ordered.
CW Continuous Weld a method of producing small diameter pipe (1/2 - 4”)
CWT Hundred Weight.  Often used in handling or trucking pricing, i.e. .30/cwt load out charge or $1.65/cwt (freight) with a minimum such as 30,000#.
Drift Used to test the minimum ID clearance verified by pulling a mandrel of known size through a length of pipe.
DRL Double Random Length (35’ minimum average or as defined in specifications).
Elongation In tensile testing, the increase in the gage length, measured after fracture of the specimen within the gage length, usually expressed as a percentage of the original gage length.
EMI Electromagnetic inspection is a method of determining wall thickness and also detecting imperfections in steel tubes.
ERW Electric Resistance Weld. See High Frequency Welding.
EUE External upset ends is forging of the ends on (API) tubing and drill pipe to provide additional thickness for strengthening connections.
EW Electric Weld. See High Frequency Weld.
FLD Full Length Drift (as opposed to “end drift”). This is usually performed as part of used tubing or casing (OCTG) inspection.
Flush Joint The connection of male and female threads cut directly into the pipe (as opposed to T&C).  This provides the same ID and OD clearance as in the middle of the tube, once lengths are joined.
FOB Free On Board used to denote where pipe is to be provided to the buyer.
Hydrostatic Test This normal mill test is required by specifications. The pipe ends are sealed and high pressure water is introduced to predetermined pressures as required by specifications.
I.D. Inside Diameter
Joint One length of pipe
LS Limited Service pipe not meeting specification, usually rejected at the mill.
LT Loaded Trucks used in price quotation to indicate that the seller pays for handling.
LTC Long Thread and Coupling (OCTG casing connection)
Magnetic Particle One of several methods of non destructive testing. A non destructive method of inspection for determining the existence and extent of possible defects in ferromagnetic materials. Finely divided magnetic particles, applied to the magnetized part, are attracted to and outline the pattern of and magnetic leakage fields created by discontinuities.
Magnetic Properties The properties of a material that reveal its elastic and inelastic behavior where force is applied, thereby indicating its suitability for mechanical application; for example, tensile strength, elongation, hardness and fatigue limit.
Nominal Pipe size or wall thickness as specified (not actual).  Sizes refer to approximate ID, even though OD is the fixed dimension used.
Normalizing Heating a ferrous material to a suitable temperature above the transformation range and then cooling in air to a temperature substantially below the transformation range.
NUE Non upset end OCTG tubing description (not as common as EUE)
O.D. Outside Diameter
OCTG Oil Country Tubular Goods pipe made to API specifications
PE Plain End (not threaded yet)
PEB Plain End Beveled
p.s.i. Pounds per square inch
Pin External (male) threaded end
Protector Plastic, steel or composite cap to protect threads from handling damage
R & D Reamed and Drifted. Pipe commonly used in water wells which has a special, heavy duty coupling and a guaranteed I.D. clearance.
Range (R1, R2, R3) lengths of OCTG
(Range 1 casing 16-25’)
(Range 2 casing 25-34’)
(Range 3 casing 34-48’)
(Range 1 tubing 20-24’)
(Range 2 tubing 28-32’)
Rockwell Hardness Relative resistance of a metal to indentation by a diamond cone, as expressed in hardness scale units (A, B, C or G)
SEA Special End Area
Spec Specification
SRL Single Random Length (16-22 ft. for standard weight ASTM pipe or as defined in specifications).
STC Short Thread and Coupling (OCTG casing connection).
Stencil Paint spray identification placed on pipe. Specification size, wall, grade, test pressure, method of manufacture and normal mill characters and mill identification are usually included; however, detail varies by specification. “Country of Origin” is included.
T & C Threaded and Coupled.
T & D Tested and Drifted. This is one method of verifying integrity of used tubing and casing (OCTG).  “Test” refers to hydrostatic:  ends are sealed and water pumped inside to a predetermined pressure.  (See drift def. above).
Tensile Strength In tensile testing, the ratio of maximum load to original cross sectional area. Also, called ultimate strength. Usually expressed in pounds per square inch.
Tolerance Specified allowance (plus or minus) of the given dimension of a finished product due to inaccuracies in manufacturing; usually quite small (thousandths of an inch or a very small percentage) and often part of a standard such as ASTM or API.
Ultrasonic An electronic method of non destructive testing utilizing sound waves.
Yield Strength The stress at which a material exhibits a specified deviation from proportionality of stress and strain. An offset of 0.2% is used for many metals including steels.