Product Description
API Casing – High-Strength Seamless Steel Pipe for Oil & Gas Wells
API Casing is a premium-grade, large-diameter seamless steel pipe
designed to serve as a structural retainer for oil and gas
wellbores. It is a critical component in well construction,
providing reinforcement to prevent borehole collapse, protect
subsurface formations, and ensure safe drilling operations. Once
inserted into the wellbore, the casing is cemented in place to
maintain well integrity, facilitate drilling fluid circulation, and
enable efficient hydrocarbon extraction.
Specifications
| Sizes | OD 4-1/2”~20” |
| Grade | H40, J55, K55, N80, M65, L80, C90, C95, T95, P110, Q125 |
| Length | R1, R2, R3 |
| Standard | API SPEC 5CT |
| Application | Serves as walls of a well |
| Packing | Bundle or bulk |
Key Features & Specifications
Material Grades: GR.B, ST52, ST35, ST42, ST45, X42, X46, X52, X56,
X60, X65, X70, SS304, SS316, Duplex 2205, 2507, 3507, SUS201,
SUS304, SUS316, SUS906
Size Range: 1/4" to 24" (13.7 mm to 610 mm OD)
Wall Thickness: 2.87 mm to 16 mm
Minimum Yield Strength: 35,000 psi (35K) – Higher grades available
for high-pressure applications
Smooth Wall Design: Ensures optimal fluid flow and reduces friction
during installation
Connection Types: STC (Short Thread Coupling), LTC (Long Thread
Coupling), BTC (Buttress Thread Coupling), P (Premium Threaded)
Standards & Certifications
Manufacturing Standards: API 5L, ASTM A106 Gr.B, ASTM A53 Gr.B,
ANSI A210, ANSI B36.10M, ASTM A1020, ASTM A179, BS 3059-2, DIN
17175, DIN 1630, DIN 2448
Certifications: ISO 9001, SGS, CTI, ROHS, BV (Bureau Veritas)
Surface Treatment Options
To enhance durability and corrosion resistance, API Casing pipes
are available with various surface treatments, including:
Applications
API Casing is widely used in:
Oil & Gas Wells: Structural support for wellbores, preventing formation collapse
Liquid Delivery Systems: High-pressure fluid transportation
Structural Piping: Construction and industrial applications
High & Low-Pressure Boiler Tubes: Heat-resistant performance
Petroleum Cracking: Seamless steel tubes for refinery operations
Gas & Oil Pipelines: Reliable transportation of hydrocarbons
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;
More Details
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Our company
Oasis Oil Tools Co., Ltd, is a famous manufacturer which integrates
the research and development, design, manufacture and sell water
well screens/Johnson screens/wedge wire screen/rod base
screen/continuous slot screen/non-enforced Johnson screen, oil well
screens and sand control well screens, bridge slotted well screens,
pipe based well screens/perforated base pipe with screen
jacket/pipe base screen/reinforced Johnson type screen, perforated
pipe (base pipe), gravel pre-packed well screens, passive water
intake screens etc. water, oil and gas well filtering products as
well as API/Stainless Steel Casing& Tubing 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
