1. Material & Standards
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Material: Carbon Steel
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Grades: API 5CT J55 / K55
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Standards: API 5CT
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Thread: API Casing Thread (Standard Connection for Oilfield Casing)
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Coating/Finish: Anti-Corrosion Coating Optional
2. Key Specifications
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Size Range: 2 3/8" to 9 5/8" (DN60 to DN245)
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Wall Thickness: As per API 5CT Standard
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Pressure Rating: Oil Well Operating Pressure – As per API 5CT
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Thread Type: API Casing Thread – Designed for High Pressure Oilfield Applications
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Corrosion Resistance: Optional Coating for Harsh Downhole Environments
3. Features & Benefits
✔ High Strength & Durability – Meets API 5CT mechanical requirements
✔ Reliable Thread Connection – API casing threads ensure leak-proof joints under high pressure
✔ Oilfield Compatibility – Suitable for J55/K55 oil well casing applications
✔ Corrosion & Wear Resistant – Optional coating enhances service life in harsh downhole environments
4. Applications
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Oil Well Casing
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Oilfield Drilling Operations
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High-Pressure Downhole Tubing Connections
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Petroleum Exploration & Extraction
5. Certifications
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Mill Test Certificate (MTC)
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API 5CT Certified
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Hydrostatic & Ultrasonic Tested
Frequently Asked Questions (FAQ)
1. Are you a manufacturer or trading company?
We are a manufacturer with our own factory located in Hebei, China.
2. What materials do you offer?
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Stainless Steel: 304, 304L, 316, 316L, 321, etc.
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Carbon Steel: ASTM A105, ASTM A350 LF2, Q235, Q345, etc.
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Alloy Steel: ASTM A182 F11, F22, F5, etc.
3. Which standards do your products comply with?
ASME B16.5, ANSI, ASTM, DIN, JIS, EN, GB — with third-party inspection available.
4. Do you support OEM/ODM customization?
Yes, we provide custom machining, coating, marking, and packaging based on your drawings.
5. What is your minimum order quantity (MOQ)?
MOQ is typically 1 piece for standard items; customized parts may vary.
6. Do you provide free samples?
Yes, free samples for standard sizes are available; buyers cover shipping cost.
7. What is your delivery time?
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In-stock: 3–5 working days
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Bulk/custom orders: 10–25 working days
8. How do you ensure product quality?
We perform full inspection: raw material verification, dimensional checks, pressure/leak tests, and surface finish inspection. Third-party testing is available upon request.
