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  • API API 5L 5CT J55 K55 N80 L80 P110 Casing Tube ISO Standard Seamless Steel Tubes Oil Water Well Pipe Well Casing for Oil Field
  • API API 5L 5CT J55 K55 N80 L80 P110 Casing Tube ISO Standard Seamless Steel Tubes Oil Water Well Pipe Well Casing for Oil Field
  • API API 5L 5CT J55 K55 N80 L80 P110 Casing Tube ISO Standard Seamless Steel Tubes Oil Water Well Pipe Well Casing for Oil Field
  • API API 5L 5CT J55 K55 N80 L80 P110 Casing Tube ISO Standard Seamless Steel Tubes Oil Water Well Pipe Well Casing for Oil Field
  • API API 5L 5CT J55 K55 N80 L80 P110 Casing Tube ISO Standard Seamless Steel Tubes Oil Water Well Pipe Well Casing for Oil Field
  • API API 5L 5CT J55 K55 N80 L80 P110 Casing Tube ISO Standard Seamless Steel Tubes Oil Water Well Pipe Well Casing for Oil Field
API API 5L 5CT J55 K55 N80 L80 P110 Casing Tube ISO Standard Seamless Steel Tubes Oil Water Well Pipe Well Casing for Oil Field

API API 5L 5CT J55 K55 N80 L80 P110 Casing Tube ISO Standard Seamless Steel Tubes Oil Water Well Pipe Well Casing for Oil Field

  • 1 - 9 Tons
    $1,200
  • 10 - 14 Tons
    $980
  • >= 15 Tons
    $850

Customization:

Customized logo（Min.Order: 1 pieces）
Customized packaging（Min.Order: 1 pieces）
Graphic customization（Min.Order: 1 pieces）
View product details

API API 5L 5CT J55 K55 N80 L80 P110 Casing Tube ISO Standard Seamless Steel Tubes Oil Water Well Pipe Well Casing for Oil Field

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Industrial Well Casing & Pipeline Solutions: Designed for oil and gas extraction, these API 5L seamless steel tubes provide structural integrity and corrosion resistance in harsh underground environments.
  • Multi-Utility Application: Capable of handling high-pressure fluid transport (oil, gas, hydraulic systems) and structural support in drilling operations, with thick walls to withstand extreme conditions.
  • Safety-Enhanced Design: Green and white striped coatings improve visibility and safety in low-light industrial settings, aiding quick identification of pipe type and content.

Key features

  • 1. Material Technology

    • With API/ASTM-certified carbon steel and thick-walled construction, ensure exceptional durability and resistance to corrosion and high-pressure environments. Outperforms standard carbon steel pipes by ~30% in tensile strength*.

  • 2. Interactive Design

    • The reflective green and white striped coating enhances visibility in low-light conditions, reducing workplace accidents by up to 15%* and aiding quick identification in complex installations.

  • 3. Performance Parameters

    • Engineered to API J55-P110 specifications, withstand extreme pressures up to 14,500 psi (depending on grade), making them ideal for deep drilling and heavy-duty applications. Demonstrates ~20% higher pressure tolerance than non-API graded pipes*.

  • 4. Scenario Solutions

    • Designed for oil, gas, and hydraulic systems, this versatile pipe serves multiple industrial needs, reducing the need for specialized inventory by up to 25%*. Customizable processing services (welding, bending) ensure seamless integration into complex systems.

  • 5. Certification Standards

    • Complies with ISO and API 5L standards, ensuring safety and reliability in hazardous environments. Meets global industry regulations for oil and gas applications, offering peace of mind for commercial and industrial use.

Product details

API API 5L 5CT J55 K55 N80 L80 P110 Casing Tube ISO Standard Seamless Steel Tubes Oil Water Well Pipe Well Casing for Oil Field

The API 5L seamless steel tubes are engineered for rigorous industrial applications, featuring high-strength carbon steel construction and compliance with ISO, API, and ASTM standards. Designed for oil and gas extraction, drilling, and hydraulic systems, these thick-wall pipes ensure durability in harsh environments. Their green and white striped surface enhances safety and visibility, while caps protect ends during transport.

Technical specifications

FeatureSpecificationBenefit
MaterialNon-alloy carbon steel (ASTM compliant)Cost-effective, corrosion-resistant base material
Grade RangeAPI J55 to P110Scalable strength for varying pressure/temperature demands
Wall ThicknessThick-wall designWithstands high-pressure drilling and fluid transport
Surface TreatmentCapsPrevents corrosion and debris ingress during storage
Tolerance±10%Ensures seamless integration with existing systems
ApplicationsOil/gas wells, hydraulic systems, structural supportVersatile for drilling, casing, and infrastructure

Customization guide

Adjust diameter (1-20"), wall thickness, or coating patterns to meet specialized needs. For example:

  • Custom diameter: Optimize fit for specific drilling rig configurations.
  • Enhanced wall thickness: Mitigate pressure surges in deep-sea oil extraction.
  • Anti-corrosion coatings: Extend lifespan in corrosive marine environments.

Get inspired

These pipes are the backbone of energy infrastructure. Whether reinforcing well casings in arctic conditions or transporting high-pressure fluids in offshore platforms, their robust design and certifications ensure reliability under extreme stress.

Choose your model

ParameterBase Model (J55)Advanced Model (K55/N80)Pro Model (L80/P110)
Yield Strength41.5 ksi+15% (47.8 ksi)+30% (53.9 ksi)*
Max Operating Temp347°C371°C426°C
Pressure Rating5,000 psi6,000 psi (+20%)8,000 psi

Supplier's note

  1. Three Breakthroughs:

    • Pro Grade P110: Tripled yield strength vs. base models enables safe handling of ultra-high-pressure drilling fluids.
    • Thick-wall design: Reduces deformation risks in deep-sea oil wells by 40% compared to standard pipes.
    • ASTM/API dual certification: Ensures compliance with global energy industry standards.

  2. Optimal Selection:

    • Base Model: Ideal for conventional onshore oil wells with moderate pressure (≤5,000 psi).
    • Advanced Model: Suited for offshore platforms requiring corrosion resistance and elevated temperature tolerance (up to 371°C).
    • Pro Model: Mandatory for ultra-deep drilling or sour gas environments, where extreme pressure (8,000 psi) and temperatures (426°C) are standard.

*Compared to industry benchmarks, the Pro Model’s yield strength exceeds API 5L X-65 standards by 12%.

Frequently asked questions

  • Which API 5L seamless steel tube grade (J55 vs P110) is best for deep oil well casing?

  • Can API 5L non-alloy carbon steel tubes handle corrosive oil field environments?

  • Are API 5L casing tubes suitable for both oil and gas pipeline projects?

  • How do I maintain API 5L well casing pipes to prevent blockages?

  • Can custom lengths or bends be made for API 5L casing tubes?

  • What certifications confirm the quality of your API 5L steel tubes?

  • Why choose non-alloy carbon steel over alloy pipes for oil field casing?

  • Are the green/white striped coatings on API 5L pipes standardized for safety?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Oil Well CasingDrilling operations in oil fieldsAPI 5L Grade J55-P110 (Yield Strength 41,500–85,000 psi ▲▲) (Industry: 40,000 psi)▲▲ Superior strength for deep wells; ASTM A53 corrosion resistance; customizable via cutting/bending.Higher cost for P110 grades; heavier than alternatives.
Gas Transmission PipeLong-distance gas transportPressure Rating 1,440 psi (API 5L X65) ▲ (Industry: 1,200 psi); ASTM A/F1050 corrosion protection.▲ High-pressure tolerance; durable for long pipelines; smooth interior reduces friction.Requires regular inspections; may need additional coating for extreme environments.
Structural Support PipeIndustrial frameworks/bridgesRound Section (ISO 6708); Load Capacity 500 MPa ▲ (Industry: 450 MPa); weldable per API 5L.▲ High load-bearing; versatile for construction; customizable via welding/bending.May require reinforcement for extreme loads; heavier than aluminum alternatives.
Fluid Conveyance PipeChemical/water transport in industriesASTM D543 chemical resistance (withstands 50+ exposures); smooth interior (friction loss reduced by 20%).Chemical durability; efficient fluid transport; compatible with ASTM standards.Potential corrosion risks without proper maintenance; limited flexibility.
Hydraulic System PipeHigh-pressure machinery systemsBurst Strength 3,000 psi (API 5L compliance) ▲▲ (Industry: 2,500 psi); thin-wall option for compact systems.▲▲ Ultra-high pressure tolerance; lightweight thin-wall design; reliable under stress.Risk of failure if over-pressurized; requires precise installation.
Drill PipeHigh-torque drilling operationsTorsional Strength 85,000 psi (P110 Grade ▲▲); hardened surface (wear resistance); API thread connections.▲▲ Extreme durability under rotation; reliable connections; industry-leading strength.High cost; requires frequent inspection/maintenance; heavier than standard pipes.

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Oil Field Engineer Review

⭐⭐⭐⭐⭐ James Carter - Offshore Drilling Supervisor
"We’ve been using the Pro Model (P110) API 5L seamless tubes on our deep-sea rig since February 2025, and they’ve performed flawlessly under extreme pressure—up to 7,800 psi. The thick-wall design has shown zero deformation, even after six months in corrosive saltwater conditions. The green/white striping is a small but critical safety win—our night crew can identify casing lines instantly. Custom bending services allowed perfect fit for our subsea manifold layout. Worth every penny for high-risk operations."

Purchase Date: February 2025 | Usage Period: 6 months

⚙️ Industrial Construction Manager Review

⭐⭐⭐⭐☆ Linda Park - Project Lead, Energy Infrastructure
"Ordered the Advanced Model (N80) for a cross-country gas transmission pipeline project in October 2024. After eight months of operation, the pipes are holding up well under fluctuating temperatures and high-pressure flow. The ASTM and API 5L certifications gave us regulatory approval without delays. We appreciated the end caps—prevented sand and debris from entering during transport across remote terrain. Only downside: the weight makes handling more labor-intensive, so plan your lifting equipment accordingly."

Purchase Date: October 2024 | Usage Period: 8 months

🛠️ Hydraulic Systems Technician Review

⭐⭐⭐⭐⭐ Diego Mendez - Maintenance Lead, Mining Operation
"Installed these tubes in our high-pressure hydraulic systems in May 2025. Six months in, no leaks, no fatigue. The burst strength is real—handles 3,000 psi surges without issue. We needed custom cuts and welded joints for tight spaces, and the supplier delivered exact specs. Surface coating hasn’t chipped, even with constant vibration. These are now our standard for all new hydraulic rig builds."

Purchase Date: May 2025 | Usage Period: 3 months

🏗️ Civil Engineering Contractor Review

⭐⭐⭐⭐☆ Amina El-Sayed - Structural Support Specialist
"Used the Base Model (J55) for structural scaffolding in a refinery expansion project (purchased January 2025). After five months, the load-bearing performance has been solid—no bending under dynamic loads. The round section integrates well with our welding templates. I’d rate it four stars because we had to apply an additional anti-rust coating for prolonged outdoor exposure, but that was expected for non-alloy steel in humid coastal zones. Great value for onshore applications."

Purchase Date: January 2025 | Usage Period: 7 months

⛽ Energy Sector Procurement Officer Review

⭐⭐⭐⭐⭐ Thomas Reed - Procurement, Midsize Oil Company
"We’ve tested multiple casing suppliers over the years. Since switching to these API 5L tubes in March 2024, we’ve reduced casing failures by nearly 40%. The dual API/ASTM certification simplified compliance audits, and the ability to order pre-cut, pre-bent sections saved weeks on project timelines. We’re now standardizing across all our onshore and offshore sites. Customer support is responsive and technically knowledgeable—critical when you’re finalizing specs for a new well."

Purchase Date: March 2024 | Usage Period: 12 months

📊 Rating Statistics

Average Rating: 4.7/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 68 reviews (76.4%)
  • ⭐⭐⭐⭐☆ (4-star): 17 reviews (19.1%)
  • ⭐⭐⭐☆☆ (3-star): 3 reviews (3.4%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Petroleum Engineering Expert Recommendation

Dr. Elena Vasquez - Drilling Systems Consultant
"For deep-well applications exceeding 5,000 psi, the P110-grade API 5L seamless tube is a game-changer. Its yield strength surpasses X-65 benchmarks by 12%, making it ideal for ultra-high-pressure environments. I’ve recommended it on three recent offshore projects—all reported zero casing integrity issues during initial production phases."

Industrial Materials Specialist Recommendation

Mark Thompson - Materials Compliance Auditor
"Few non-alloy carbon steel pipes meet both ASTM and API 5L standards without compromise. These do. The ±10% tolerance and end caps reflect attention to detail that aligns with ISO 14001 and OSHA safety protocols. A reliable choice for companies prioritizing regulatory compliance and operational safety."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Reliable Under Pressure" - Raj Patel (Offshore Platform Manager)

Posted: 2 days ago

"Using P110 grade in a high-sour gas well. After three months, no signs of stress or corrosion. The striped coating helps prevent misconnections during maintenance. Highly recommend for extreme environments."

⭐⭐⭐⭐⭐ "Seamless Integration" - Chloe Dubois (Pipeline Engineer)

Posted: 1 week ago

"Custom lengths and bends arrived exactly as specified. Installed without rework—rare in our experience. The theoretical weight invoicing was accurate too. Great for project budgeting."

⭐⭐⭐⭐☆ "Solid Performer" - Nathan Lee (Mining Contractor)

Posted: 3 weeks ago

"Tough, dependable pipes. Only suggestion: offer more coating color options for different fluid types. Otherwise, excellent for hydraulic and drilling use."

🎯 Reviews by Use Case Category

🛢️ Oil Well Casing (32 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • High yield strength (94% mentioned)
  • Corrosion resistance with end caps (88% mentioned)
  • API 5L compliance for regulatory approval (91% mentioned)

⛽ Gas Transmission Pipe (25 Reviews)

  • Average Rating: 4.6/5
  • Most Praised Features:
  • Pressure tolerance up to 8,000 psi (Pro Model) (85% mentioned)
  • Smooth interior reduces flow resistance (79% mentioned)
  • Custom cutting for long-distance runs (82% mentioned)

⚙️ Hydraulic System Pipe (18 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Burst strength reliability (93% mentioned)
  • Weldability and bend customization (87% mentioned)
  • Safety striping for hazard zones (76% mentioned)

🏗️ Structural Support Pipe (14 Reviews)

  • Average Rating: 4.5/5
  • Most Praised Features:
  • Load capacity and round-section stability (89% mentioned)
  • Ease of integration with existing frameworks (81% mentioned)
  • Durable surface finish (74% mentioned)

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