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API 5L Seamless Carbon Steel Pipe Grade B/X42/X52/X65/X70 PSL1 & PSL2
Product Introduction
API 5L Pipe is a carbon steel line pipe designed for the reliable transportation of fluids in pipeline systems. It is widely used in oil and gas transmission projects and can also handle other media, including water, steam, and mud. With suitable grades, dimensions, and manufacturing options, API 5L carbon steel pipes can be supplied for different pipeline transportation requirements and project conditions.
Product Detail
| Feature | Details |
| Steel Grades | Available in API 5L Steel Pipe Grade B, X42, X52, X56, X60, X65, X70, and X80 |
| Specification Level | Supplied under PSL1 and PSL2 standards |
| Outer Diameter | Ranges from 1/2” up to 40”, including common sizes such as 2”, 3”, 4”, 6”, 8”, 10”, 12”, 16”, 18”, 20”, and 24” |
| Wall Thickness | Covers SCH 10, SCH 20, SCH 40, STD, SCH 80, XS, and up to SCH 160 |
| Production Methods | Manufactured via seamless processes (hot rolled or cold finished), ERW, and SAW (including LSAW, DSAW, SSAW, and HSAW) |
| Delivery Condition | Provided in as-rolled, normalized, quenched & tempered, or thermomechanically processed states |
| Pipe Ends | Supplied with beveled ends or plain ends as required |
| Length | Available in SRL, DRL, standard 20FT (6m), 40FT (12m), or customized lengths upon request |
| End Protection | Fitted with plastic or steel caps for protection during transport |
| Surface Treatment | Options include bare, varnished, black painted, FBE coating, 3PE (3LPE), 3PP, CWC, or CRA lining/cladding |
| Applications | Widely used in oil & gas transmission, water pipelines, energy projects, and other high-pressure industrial applications |
Product Advantages
High Strength and Pressure Resistance
Manufactured without a welded seam, seamless steel pipe offers a uniform structure with high strength and reliable resistance to internal pressure, making it suitable for demanding pipeline and industrial applications.
Excellent Dimensional Accuracy
Advanced hot-rolling and hot-expansion processes help maintain consistent dimensions and wall thickness, supporting reliable installation and system performance.
Wide Range of Sizes
Seamless carbon steel pipes are available in various diameters to meet different project requirements. Hot-rolled production can cover sizes up to 20 inches (508 mm), while hot expansion allows larger seamless pipes up to 40 inches (1016 mm).
Reliable Mechanical Performance
The uniform metallurgical structure of seamless pipe provides stable mechanical properties and dependable performance under demanding operating conditions.
Manufacturing Types
The API 5L standard includes both welded and seamless steel pipes.
Common Welded Pipe Types
| Type | Description | Typical Diameter |
| ERW | Electric Resistance Welded | Less than 24 inches |
| DSAW / SAW | Double-sided or Submerged Arc Welded | Larger diameters, alternative to ERW |
| LSAW | Longitudinal Submerged Arc Welded (JCOE process) | Up to 48 inches |
| SSAW / HSAW | Spiral or Helical Submerged Arc Welded | Up to 100 inches |
Seamless pipes are also available for applications requiring higher pressure or corrosion resistance.
Contact Us to Learn the Differences Between ERW, LSAW, and SSAW pipe. Seamless Steel Pipe Types and Size Range
Seamless steel pipes are available in different manufacturing forms and size ranges to meet the requirements of various pipeline and engineering projects. They are widely selected for applications where a uniform structure, high strength, and dependable pressure performance are required, particularly in smaller-diameter pipeline systems.
Our seamless pipe range also covers larger diameters for specialized engineering applications. Standard hot-rolled seamless pipes can be supplied with outside diameters up to 20 inches (508 mm). When larger dimensions are required, hot expansion technology can be used to produce seamless pipes with diameters of up to 40 inches (1016 mm).
The combination of controlled forming processes and strict dimensional control helps ensure:
- Consistent outside diameter and wall thickness
- Reliable mechanical properties
- Good resistance to internal pressure
- Stable dimensional consistency
- Suitable performance for demanding service conditions
With a broad size range and reliable manufacturing performance, our seamless carbon steel pipes can be used in oil and gas pipelines, industrial fluid transportation, energy projects, infrastructure construction, and other applications requiring dependable steel pipe solutions.
Application Scenarios
FAQs
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Q1: What grades are available for API 5L seamless carbon steel pipe?
A1: We can supply API 5L seamless carbon steel pipes in common grades including Grade B, X42, X52, X65, and X70, with PSL1 and PSL2 options available according to project requirements. -
Q2: What sizes of seamless steel pipe can you supply?
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Q3: What are API 5L seamless pipes used for?
Packing
Our API 5L steel pipes are securely prepared for transportation to help prevent damage, deformation, and corrosion during handling, storage, and delivery. Standard packing is available with strong steel straps or steel wire to keep pipe bundles stable and tightly secured.
For projects requiring additional protection, rust-preventive treatment and customized packaging solutions can be arranged according to transportation conditions and customer requirements.
During loading, handling, and transit, seamless carbon steel pipes should be protected from heavy impact, excessive pressure, cutting, and other mechanical damage. Pipes should also be stored in a safe, dry environment away from fire, corrosive substances, and other potential hazards.
Before installation or use, the API 5L steel pipes should be inspected to confirm that the selected grade, dimensions, and specifications are suitable for the operating medium, pressure, and temperature of the intended application.
For projects requiring additional protection, rust-preventive treatment and customized packaging solutions can be arranged according to transportation conditions and customer requirements.
During loading, handling, and transit, seamless carbon steel pipes should be protected from heavy impact, excessive pressure, cutting, and other mechanical damage. Pipes should also be stored in a safe, dry environment away from fire, corrosive substances, and other potential hazards.
Before installation or use, the API 5L steel pipes should be inspected to confirm that the selected grade, dimensions, and specifications are suitable for the operating medium, pressure, and temperature of the intended application.
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