API 5CT casing pipe
Classification :
Technique: Seamless/EW
Standard: API 5CT
Out Diameter (OD): 114.3-508mm
Keywords:
Seamless Steel Pipe
Product introduction
Casing is large diameter pipe that is assembled and inserted into a recently drilled section of a borehole and typically
held into place with cement. And we provide various Seamless Casing from 4-1/2’’-20’’ in grade H40, J55, K55,
N80, L80, C95, P110 etc. The Casing length range is R1, R2, R3, with threads of BTC, LTC, STC. According to the strength
of steel casing can be divided into different steel grade, deep well, using different steel grade. In corrosive environment
also requires the casing itself has corrosion resistance. In the complicated geologic condition place also asked the casing
having an anti-collapse performance.
| Product Name | API Spec 5CT Casing Pipe |
| Material | H40 J55 K55 N80 M65 L80 L8013CR C90 C95 T95 P110 Q125 V150 |
| Technique | Seamless/EW |
| Standard | API 5CT |
| Out Diameter (OD) | 114.3-508mm |
| Wall Thickness (WT) | 5.21-22.22mm |
| Norminal Weight | 9.5-133.0(Ib/ft) |
| Length | R1 (5.49-6.71m), R2 (8.23-9.14m), R3 (11.58-13.72m) or as customer's requirements |
| Coupling | BTC, STC, LTC, NUE, EUE, VAM, BU or no thread |
| Usage | Oil/Gas Drilling |
| Outer Diameter | Wall Thickness | Thread | Length | ||
| in | mm | kg/m | lb/ft | ||
| 4 1/2" | 114.3 | 14.14-22.47 | 9.50-15.10 | LTC/STC/BTC | R1/R2/R3 |
| 5" | 127 | 17.11-35.86 | 11.50-24.10 | LTC/STC/BTC | R1/R2/R3 |
| 5 1/2" | 139.7 | 20.83-34.23 | 14.00-23.00 | LTC/STC/BTC | R1/R2/R3 |
| 6 5/8" | 168.28 | 29.76-35.72 | 20.00-24.00 | LTC/STC/BTC | R1/R2/R3 |
| 7" | 177.8 | 25.30-56.55 | 17.00-38.00 | LTC/STC/BTC | R1/R2/R3 |
| 7 5/8" | 193.68 | 35.72-63.69 | 24.00-42.80 | LTC/STC/BTC | R1/R2/R3 |
| 8 5/8" | 219.08 | 35.72-72.92 | 24.00-49.00 | LTC/STC/BTC | R1/R2/R3 |
| 9 5/8" | 244.48 | 48.07-86.91 | 32.30-58.40 | LTC/STC/BTC | R1/R2/R3 |
| 10 3/4" | 273.05 | 48.73-97.77 | 32.75-65.70 | LTC/STC/BTC | R1/R2/R3 |
| 11 3/4" | 298.45 | 62.50-89.29 | 42.00-60.00 | LTC/STC/BTC | R1/R2/R3 |
| 13 3/8" | 339.72 | 71.43-107.15 | 48.00-72.00 | LTC/STC/BTC | R1/R2/R3 |
| 16'' | 406.4 | 96.73-162.21 | 65.00-109.00 | LTC/STC/BTC | R1/R2/R3 |
| 18 5/8'' | 473.08 | 130.21 | 87.50 | LTC/STC/BTC | R1/R2/R3 |
| 20'' | 508 | 139.89-197.93 | 94.00-133.00 | LTC/STC/BTC | R1/R2/R3 |
Technical data
Chemical Composition
| Group | Grade | Type | C | Mn | Mo | Cr | Ni max. | Cu max. | P max. | S max. | Si max. | ||||
| min. | max. | min. | max. | min. | max. | min. | max. | ||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| 1 | H40 | - | - | - | - | - | - | - | - | - | - | - | 0.03 | 0.03 | - |
| J55 | - | - | - | - | - | - | - | - | - | - | - | 0.03 | 0.03 | - | |
| K55 | - | - | - | - | - | - | - | - | - | - | - | 0.03 | 0.03 | - | |
| N80 | 1 | - | - | - | - | - | - | - | - | - | - | 0.03 | 0.03 | - | |
| N80 | Q | - | - | - | - | - | - | - | - | - | - | 0.03 | 0.03 | - | |
| R95 | - | - | 0.45 c | - | 1.9 | - | - | - | - | - | - | 0.03 | 0.03 | 0.45 | |
| 2 | M65 | - | - | - | - | - | - | - | - | - | - | - | 0.03 | 0.03 | - |
| L80 | 1 | - | 0.43 a | - | 1.9 | - | - | - | - | 0.25 | 0.35 | 0.03 | 0.03 | 0.45 | |
| L80 | 9Cr | - | 0.15 | 0.3 | 0.6 | 0.9 | 1.1 | 8 | 10 | 0.5 | 0.25 | 0.02 | 0.01 | 1 | |
| L80 | 13Cr | 0.15 | 0.22 | 0.25 | 1 | - | - | 12 | 14 | 0.5 | 0.25 | 0.02 | 0.01 | 1 | |
| C90 | 1 | - | 0.35 | - | 1.2 | 0.25 b | 0.85 | - | 1.5 | 0.99 | - | 0.02 | 0.01 | - | |
| T95 | 1 | - | 0.35 | - | 1.2 | 0.25 d | 0.85 | 0.4 | 1.5 | 0.99 | - | 0.02 | 0.01 | - | |
| C110 | - | - | 0.35 | - | 1.2 | 0.25 | 1 | 0.4 | 1.5 | 0.99 | - | 0.02 | 0.005 | - | |
| 3 | P110 | e | - | - | - | - | - | - | - | - | - | - | 0.030 e | 0.030 e | - |
| 4 | Q125 | 1 | - | 0.35 | 1.35 | - | 0.85 | - | 1.5 | 0.99 | - | 0.02 | 0.01 | - | |
| a The carbon content for L80 may be increased up to 0.50 % maximum if the product is oil-quenched. b The molybdenum content for Grade C90 Type 1 has no minimum tolerance if the wall thickness is less than 17.78 mm. c The carbon content for R95 may be increased up to 0.55 % maximum if the product is oil-quenched. d The molybdenum content for T95 Type 1 may be decreased to 0.15 % minimum if the wall thickness is less than 17.78 mm. e For EW Grade P110, the phosphorus content shall be 0.020 % maximum and the sulfur content 0.010 % maximum. NL = no limit. Elements shown shall be reported in product analysis. |
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Mechanical Properties
| Standard | Type | Tensile Strength MPa |
Yield Strength MPa |
Hardness Max. |
| API SPEC 5CT | J55 | ≥517 | 379 ~ 552 | ---- |
| K55 | ≥517 | ≥655 | --- | |
| N80 | ≥689 | 552 ~ 758 | --- | |
| L80(13Cr) | ≥655 | 552 ~ 655 | ≤241HB | |
| P110 | ≥862 | 758 ~ 965 | ---- |
warehouse storage
The annual output of the factory is 400,000 tons, and the current inventory is more than 100,000 tons, which can greatly save the purchasing time of customers and ensure the production cycle and product quality of customers. We are a quality partner for domestic and foreign customers. At present, there are 14 steel production lines for processing, bending, coating, heat treatment, cutting, drilling, chamfering, conditioning, surface treatment and 13 sets of processing equipment.

Packing and shipping
Our main products are: carbon steel plate, carbon steel pipe, carbon steel coil, stainless steel plate, stainless steel coil, stainless steel profile, galvanized plate, galvanized coil, color coated steel coil, ppgi/ppgl and a wide range of high quality steel products.

Customer visit
Li Cheng (Shandong) Metal Materials Co., LTD. has the right to import and export, and its products are exported to more than 20 countries in Asia, Africa, Europe, North America and other regions. Complete processing equipment, perfect quality assurance system, well received by customers.We are willing to first-class technology, first-class equipment, first-class service wholeheartedly and friends from all walks of life sincere cooperation!

Cooperation Case
Applicable to construction, petroleum, chemical, electric power, metallurgy, urban gas, heat pipe network, Bridges, railways, vehicles, ships and other industrial fields and construction, infrastructure and other engineering fields. Complete testing equipment, strong technical force, can implement GB, ASTM, JIS, DIN and other standards.

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