Filiz Steel, a reputable steel supplier located in Istanbul, Turkey, proudly provides high-strength **Carbon Steel API 5L X65 PSL 1 pipes** that are engineered for the safe and efficient transport of oil, gas, and various fluids in high-pressure pipeline systems. These pipes are manufactured in accordance with the **API 5L** standard established by the **American Petroleum Institute**. The **X65 grade** signifies a minimum yield strength of **65,000 psi (450 MPa)**. With the **PSL 1 (Product Specification Level 1)** classification, these pipes meet essential mechanical and chemical requirements, making them ideal for general use in the energy and infrastructure sectors.
Crafted from micro-alloyed carbon steel, API 5L X65 PSL 1 pipes strike a perfect balance between **strength, toughness, and weldability**. They typically exhibit **tensile strengths ranging from 535–760 MPa**, ensuring they perform reliably in tough environments where both internal pressure and external conditions can be quite demanding. Available in **seamless or welded forms**, these pipes can be delivered with beveled, plain, or threaded ends, and can also come with optional coatings and protective finishes tailored to meet specific project needs.
| Standard | ISO 3183 L450/ API 5L X65 |
| Grade of material | X65 / L450 (N, M, Q, R) |
| PSL Level | |
| API 5L X65 PSL1 Seamless Pipe (OD) | 21.3 – 660mm ( Inch 1/2” – 26”) |
| X65 Steel LSAW / DSAW | 16’OD TO 54″ OD (8 MM TO 50 MM THK) |
| X65 Carbon Steel SAW | 16″ – 100″ NB |
| API 5L X65 PSL1 ERW and HFW | 1/2” NB – 24” NB |
| Coating for API 5L X65 PSL1 Line Pipe | 3PP, Anti-Rust Oil, CRA clad, FBE, lined pipe, Varnished, Black Painting, 3PE, 3LPE, Galvanized, |
| API 5L Grade X65 Pipe end | Cut Grooves, Square Cut, Grooved, Vibrator Grinding, Plain end (PE), Chamfering, Coupling, Screwed, Pub Joints, Deburring, Thread Cutting, Flanged Ends, Socket, Squared Ends, Threaded Ends (Male & Female), Buttweld, Beveled End (BE) |
| Cutting Facility | Laser Cutting, Sawing, Tapping, Water Jet Cutting |
| Equivalent Standards | JIS, DIN, NFA, BS, CSA, GOST, AWWA, KS, UNI, AISI, IS, EN, API, SAE, ANSI, ISO, ASTM, GB, SS |
| Grade X65 PSL1 Pipe Length | DRL, SRL, 20FT, 40FT, Single Random Length (SRL), Double Random Length (DRL), and Fixed Length 5.8 Meter, 12.0 Meters (40FT), 6.0 Meters (20FT), 11.8 Meters, |
| API 5L X65 Wall Thickness | SCH-STD, SCH160, SCH80, SCH-XXS, SCH-XS, SCH40 |
| Manufacturing process | Welded, Seamless, Electro Fusion Seam Welded (EFSW), Hot Finish Seamless (HFS), Longitudinally Submerged Arc Welded (LSAW), Cold Drawn Seamless (CDS), Electric Resistance Welded (ERW), Horizontal Submerged Arc Welded (HSAW), Extrusion, Submerged Arc Welded (SAW) |
| Mass fraction, based upon heat and product analysis a | |||||||
| CS PIPE | |||||||
| C | Mn | P | S | V | Nb | Ti | |
| maxb | max.b | min. | max. | max. | max. | max. | max. |
| 0.28e | 1.40e | – | 0.030 | 0.030 | f | f | f |
| Y.S | T.S | ELONGATION |
| Mpa(psi) | Mpa(psi) | |
| min | min | min |
| 415(60 200) | 520(75 400) | F |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| API 5L X65 Pipe types | API 5L X65 Pipe Size (mm) | Tolerances | |
|---|---|---|---|
| Hot rolled API 5L X65 Seamless Pipe | OD | <50 | ±0.50mm |
| ≥50 | ±1% | ||
| WT | <4 | ±12.5% | |
| ≥4～20 | +15%, -12.5% | ||
| >20 | ±12.5% | ||
| Cold drawn API 5L X65 Seamless Pipe | OD | 6～10 | ±0.20mm |
| 10～30 | ±0.40mm | ||
| 30～50 | ±0.45 | ||
| >50 | ±1% | ||
| WT | <1 | ±0.15mm | |
| >1～3 | + 15%, – 10% | ||
| >3 | + 12.5%, – 10% | ||
These pipes are extensively utilized in **onshore and offshore oil and gas transmission lines**, **refineries**, **petrochemical plants**, and **structural pipeline installations**. The X65 PSL 1 pipes are highly regarded for their durability, resistance to corrosion, and ease of fabrication. Filiz Steel guarantees that all supplied pipes adhere to international standards and undergo thorough testing, ensuring reliable performance and a long service life in large-scale pipeline projects across various industries.
CS API X65 5L PSL 1 Pipes are popular for moving liquids and gases because they are strong and last a long time. You can find these pipes mainly in oil and gas pipelines, petrochemical plants, and water systems. They help move fluids well even under high pressure, making them a good choice for long transport. You will also see them used in power plants and construction projects for building purposes. The key industries using API X65 5L PSL 1 pipes are oil and gas, petrochemicals, energy, water treatment, and development of infrastructure. Their ability to fight corrosion and strength make them great for tough conditions
Filiz Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Istanbul, Turkey.
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