Carbon Steel Seamless Pipe Supplier
OIS Middle East is a trusted Carbon Steel Seamless Pipe Supplier, providing high-quality seamless pipes for critical industrial applications across the oil & gas, petrochemical, power generation, marine, water treatment, construction, and manufacturing sectors. Our seamless pipes are engineered to deliver exceptional strength, pressure resistance, and durability, making them ideal for high-temperature and high-pressure service conditions.
Unlike welded pipes, seamless pipes are manufactured from solid steel billets without any welded joints. This manufacturing process enhances structural integrity, improves mechanical performance, and minimizes the risk of leakage or failure under demanding operating environments.
We maintain a comprehensive inventory of carbon steel seamless pipes in various grades, sizes, wall thicknesses, and schedules to meet the diverse requirements of EPC contractors, engineering consultants, fabrication companies, industrial maintenance teams, and project developers. Every product supplied by OIS Middle East conforms to internationally recognized quality standards, ensuring reliability, safety, and long service life.
What Are Carbon Steel Seamless Pipes?
Carbon steel seamless pipes are cylindrical steel products manufactured through a hot rolling or cold drawing process without welding. Their seamless construction provides uniform strength throughout the pipe, making them suitable for transporting fluids, gases, steam, and chemicals under extreme operating conditions.
These pipes are widely used in industries where high pressure, elevated temperatures, and corrosion resistance are critical for operational safety and efficiency.
- Types of Carbon Steel Seamless Pipes
- Hot Finished Seamless Pipes
- Cold Drawn Seamless Pipes
- High Pressure Seamless Pipes
- Boiler Tubes
- Line Pipes
- Features & Benefits
Our carbon steel seamless pipes provide numerous operational advantages.
- No welded joints
- Superior mechanical strength
- Excellent pressure resistance
- High-temperature capability
- Uniform wall thickness
- Improved corrosion resistance with protective coatings
- Excellent weldability
- Long service life
- Leak-proof performance
- Reduced maintenance requirements
- Suitable for critical industrial applications
- Material Grades
OIS Middle East supplies seamless pipes in a wide range of internationally recognized grades.
- ASTM Grades
- ASTM A106 Grade A
- ASTM A106 Grade B
- ASTM A106 Grade C
- ASTM A53 Grade B
- ASTM A333 Grade 6
- ASTM A335 P5
- ASTM A335 P9
- ASTM A335 P11
- ASTM A335 P22
- ASTM A335 P91
- API Grades
- API 5L Grade B
- API 5L X42
- API 5L X46
- API 5L X52
- API 5L X56
- API 5L X60
- API 5L X65
- API 5L X70
- Manufacturing Standards
Our seamless pipes are manufactured according to internationally recognized standards.
- ASTM A106
- ASTM A53
- ASTM A333
- ASTM A335
- API 5L
- ASME SA106
- EN 10216
- DIN Standards
- ISO Standards
- Available Sizes
We stock carbon steel seamless pipes in a wide range of dimensions.
- Pipe Diameter
- Wall Thickness
- SCH 10
- SCH 20
- SCH 30
- SCH 40
- SCH 60
- SCH 80
- SCH 120
- SCH 160
- XXS
- Length
- Random Length
- Double Random Length
- Fixed Cut Length
- Custom Lengths Available
- Surface Finish Options
To improve durability and meet project specifications, we supply seamless pipes with various finishes.
- Black Painted
- Bare Finish
- Hot Dip Galvanized
- Fusion Bonded Epoxy (FBE)
- 3LPE Coating
- 3LPP Coating
- Internal Epoxy Coating
- Cement Mortar Lining
- Anti-Corrosion Coatings
- Applications
- Oil & Gas Industry
Used for exploration, production, refining, and transportation of crude oil and natural gas
- Petrochemical Plants
Suitable for high-pressure chemical processing and hydrocarbon transportation
- Power Generation
Applied in boilers, heat exchangers, steam pipelines, and power plant infrastructure
- Water Treatment
Used in desalination plants, municipal water supply systems, and wastewater treatment facilities
- Marine & Offshore
- Construction & Infrastructure
- Fire Protection Systems
- Technical Specifications
| Specification | Details |
|---|---|
| Product | CS Seamless Pipe |
| Manufacturing | Hot Finished / Cold Drawn |
| Size | ½”–48″ |
| Schedule | SCH 10–XXS |
| Standards | ASTM, API, ASME, EN |
| Grades | A106, A53, A333, A335, API 5L |
| End Type | Plain, Bevel, Threaded |
| Finish | Black, Bare, FBE, Galv., 3LPE |
| Documentation | MTC EN 10204 3.1 / 3.2 |
- Quality Assurance
- Inspection & Testing
- Visual Inspection
- Dimensional Verification
- Hydrostatic Testing
- Ultrasonic Testing (UT)
- Eddy Current Testing
- Radiographic Testing (RT)
- Positive Material Identification (PMI)
- Mechanical Testing
- Chemical Analysis
- Hardness Testing
- Third-Party Inspection
- Documentation
- EN 10204 3.1 Certificates
- EN 10204 3.2 Certificates
- Material Test Reports (MTR)
- Inspection Reports
- Traceability Documentation
- Value-Added Services
OIS Middle East provides a range of additional services to support project-specific requirements.
- Pipe Cutting
- Precision Beveling
- Threading
- Custom Machining
- FBE Coating
- Galvanizing
- Cement Mortar Lining
- Internal Epoxy Coating
- Export Packaging
- Third-Party Inspection Coordination
- Why Choose OIS Middle East?
- Industries We Serve
Our seamless pipes are supplied to:
- Oil & Gas
- Petrochemical
- Chemical Processing
- Marine & Offshore
- Power Generation
- Water Treatment
- Desalination
- Construction
- Infrastructure
- Manufacturing
- Fire Protection
- Industrial Utilities
- Global Supply Network
We serve customers across:
- United Arab Emirates
- Saudi Arabia
- Oman
- Qatar
- Kuwait
- Bahrain
- Africa
- Asia
- Europe
- International Export Markets
- FAQ
Seamless pipes are manufactured without welded joints, providing higher strength, improved pressure resistance, and greater reliability for critical applications
We supply ASTM A106 Grade A/B/C, ASTM A53 Grade B, ASTM A333 Grade 6, ASTM A335 P11, P22, P91, and API 5L Grades B through X70.
Yes. EN 10204 3.1 and 3.2 Mill Test Certificates are available with our products.
Yes. We provide cutting, beveling, threading, FBE coating, galvanizing, cement mortar lining, and other value-added services.
We supply seamless pipes from ½ inch to 48 inches in multiple schedules and custom lengths
We supply sizes from ½ inch to 72 inches, with various wall thicknesses and schedules.
Yes. We supply seamless pipes across the UAE, GCC, Africa, Asia, Europe, and other global markets
Simply send us your required grade, size, schedule, quantity, and project specifications. Our sales team will provide a detailed quotation and delivery timeline.
