Product Description
API Casing Pipes: Premium Structural Solutions for Oil & Gas Wells
As critical components in wellbore integrity, API Casing Pipes
represent high-performance seamless steel tubing engineered to
stabilize subsurface formations during oil and gas extraction.
These large-diameter pipes serve as permanent structural barriers
when cemented into wells, preventing borehole collapse while
enabling safe drilling fluid circulation and hydrocarbon recovery.
Key Specifications & Advantages:
Material Versatility: Available in GR.B, ST/SS series (ST35-ST52,
SS304/316), X-grade alloys (X42-X70), and duplex steels
(2205/2507/3507)
Superior Strength: Smooth-walled design with minimum 35,000 psi
yield strength for optimal pressure resistance
Precision Dimensions:
Sizes: 13′ 3/8
Wall Thickness: 9.65mm
Compliance: Manufactured to API 5L, ASTM A53/A106, DIN 17175, and
other global standards
Certified Reliability: ISO9001, SGS, BV, ROHS, and CTI
certifications
Customizable Configurations:
Connections: STC/LTC/BTC threading or specialty P-type joints
Surface Protection: Galvanized, black varnish, anti-corrosion
coatings, or oiled finishes
Critical Applications:
Wellbore stabilization in hydrocarbon extraction
High/low-pressure fluid transport systems
Structural piping for industrial projects
Petroleum cracking processes
Boiler tube networks
Designed for extreme subsurface conditions, our API-certified
casings combine rigorous quality control with adaptive material
selection, ensuring longevity across demanding drilling
environments. From standard carbon steel to corrosion-resistant
duplex alloys, we deliver precision-engineered solutions that meet
global energy infrastructure needs.
Specification
| Size | Weight | Grade | Wall Thickness |
| in | mm | ppf | kg/m | mm |
| 4-1/2 | 114.30 | 11.60 | 17.26 | J55 K55 N80 | 6.35 |
| 13.50 | 20.09 | J55 K55 N80 | 7.37 |
| 5 | 127.00 | 15.00 | 22.32 | J55 K55 N80 | 7.52 |
| 18.00 | 26.79 | N80 P110 | 9.29 |
| 21.40 | 31.85 | N80 P110 | 11.10 |
| 5-1/2 | 139.70 | 17.00 | 25.30 | J55 K55 N80 | 7.72 |
| 20.00 | 29.76 | N80 | 9.17 |
| 23.00 | 34.23 | N80 | 10.54 |
| 7 | 177.80 | 23.00 | 34.23 | J55 K55 N80 | 8.05 |
| 26.00 | 38.69 | J55 K55 N80 | 9.19 |
| 29.00 | 43.16 | N80 | 10.36 |
| 9-5/8 | 244.48 | 43.50 | 64.74 | N80 | 11.05 |
| 47.00 | 69.94 | N80 | 11.99 |
| 10-3/4 | 273.05 | 40.50 | 60.27 | H40 J55 K55N80 | 8.89 |
| 51.00 | 75.90 | J55 K55 N80 | 11.43 |
| 13-3/8 | 339.73 | 54.50 | 81.80 | J55 K55 | 9.65 |
| 68.00 | 101.19 | J55 K55 N80 | 12.19 |
| 16 | 406.40 | 65.00 | 96.73 |
J55 K55 N80 | 9.53 |
| 75.00 | 111.61 | 11.13 |
| 18-5/8 | 473.10 | 87.50 | 130.21 | J55 K55 N80 | 11.05 |
| 20 | 508.00 | 94.00 | 139.89 |
J55 K55 N80 | 11.13 |
| 106.50 | 158.49 | 12.70 |
More Details
Packing&Delivery
Packing details:API 5CT Seamless Casing and Tubing is packed with bubble bag or
woven bag or then with wooden strip; according to customers'
requirements
Delivery time:API 5CT Seamless Casing and Tubing is delivered in 3-30 days after
receiving your payment
bubble bag wooden case container
bubble bag with wooden strip woven bag
FAQ
1.who are we?
We are based in Henan, China, start from 2012, There are total
about 51-100 people in our factory.
2. how can we guarantee quality?
Always final Inspection before shipment.
3. why should you buy from us not from other suppliers?
Owning 12 years researching experience, our company has following
advantages: the advanced R&D technology; the high-qualified
workers; the various premium products; the excellent enterprise
culture; the superior special customized service.
4. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF;
Accepted Payment Currency:USD,EUR;
Accepted Payment Type: T/T,L/C.
Related Products
WEDGE WIRE SCREEN
Slotted casing pipe
Prepacked screen
Company information:
Oasis Oil Tools Co.,LTD, located in the industrial park of
high-tech enterprises in Fengquan District, Xinxiang City. Oasis
now has more than 150 staff, among them 6 persons are senior
engineer. Since founded, OASIS always adhere to the “development on
innovation, development on efficiency and treat customers with
honesty” business philosophy. After many years’ efforts, now OASIS
has developed into a famous manufacturer which integrates the
research and development, design, manufacture and sell water well
screens/johnson screens, oil well screens and sand control well
screens, bridge slotted well screens, pipe based well screens,
perforated pipe (base pipe), gravel pre-packed well screens, wedge
wire screens, passive water intake screens etc. Water, oil and gas
well filtering products as well stainless steel tubes and pipes and
industrial parts.
Please contact with us for more details.
Our techinical team will give you the best choice.
Mail: oapipe@163.com
Whatsapp:+8613949678537
