API 5CT J55 Casing and Tubing – High-Quality Solutions for Oil &
Gas Applications
Introduction
OASIS is a trusted supplier and wholesaler of API 5CT J55 seamless
and ERW casing and tubing, providing reliable and cost-effective
solutions for the global oil and gas industry. Our products are
manufactured to meet strict API standards, ensuring superior
performance in shallow well applications and low-stress
environments.
What is API 5CT J55?
API 5CT J55 is a grade of seamless or electric-welded (ERW/EFW)
steel pipe specifically designed for casing and tubing operations.
With a minimum yield strength of 379 MPa and tensile strength of
517 MPa, J55 offers a balanced combination of strength and
ductility, making it ideal for shallow oil and gas wells where
wellbore support and fluid circulation are critical.
Key Features
- Material Grades: J55 (seamless and ERW/EFW)
- Yield Strength: ≥ 379 MPa
- Tensile Strength: ≥ 517 MPa
- Diameter Range:
Casing: 114.3 mm – 508.0 mm (4.5″ – 20″)
Tubing: 26.67 mm – 114.30 mm (1.05″ – 4.5″)
- End Types: Plain end, buttress thread, short/long round thread
- Color Coding: Bright green band for identification
Chemical Composition
- Phosphorus (P): ≤ 0.030%
- Sulfur (S): ≤ 0.030%
J55 is designed for environments where extreme corrosion resistance
is not required, allowing for efficient performance in standard
well conditions.
Mechanical Properties
Property Value
Yield Strength ≥ 379 MPa
Tensile Strength ≥ 517 MPa
Elongation ≥ 0.5%
Flattening tests are mandatory for electric-welded pipes to ensure
structural integrity.
Manufacturing Process
- Seamless or electric welding (ERW/EFW)
- Weld seams are heat-treated to eliminate untempered martensite
- Straightening is not required for J55 grade
- Couplings and related accessories are manufactured using seamless
processes
Quality Assurance
All J55 products undergo rigorous nondestructive testing (NDT),
including visual inspection and wall thickness verification, to
ensure compliance with API 5CT standards.
More Details
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Why Choose OASIS?
- ✅ API-certified J55 casing and tubing
- ✅ Competitive pricing and bulk order discounts
- ✅ Wide size range and customization options
- ✅ Expert technical support and timely delivery
- ✅ Proven reliability in oil and gas projects worldwide
Contact Us
Elevate your oil and gas operations with OASIS API 5CT J55 casing
and tubing. Our team is ready to provide tailored solutions and
support for your project needs.
