API 5L specification covers seamless and welded steel line pipe. It includes standard-weight and extra-strong threaded line pipe. It includes standard-weight and extra-strong threaded line pipe; and standard-weight plain-end, regular-weight plain-end, special plain-end, extra-strong plain-end, special plain-end, extra-strong plain-end pipe; as as well as bell and spigot and through-the-flow line(TFL) pipe. The purpose of this specification is to provide standards for pipe suitable for use in conveying gas, water, and oil in both the oil and natural gas industries
The American Petroleum Institute specification API 5L covers seamless and welded steel line pipe. This is steel pipe for pipeline transportation systems in the petroleum and natural gas industries. API 5L is suitable for conveying gas, water, and oil. Size range is limited only by manufacturer’s capabilities. Specifications for API 5L adhere to the International Organization for Standardization ISO 3183, which standardizes pipeline transportation systems within the materials, equipment and offshore structures for petroleum, petrochemical, and natural gas industries. The technical committee authoring the standards recognized that there are two basic Product Specifications Levels (PSL) of technical requirements and therefore developed PSL 1 and PSL 2. PSL 1 is a standard quality for line Pipe where PSL 2 contains additional chemical, mechanical properties, and testing requirements.
Property | API 5L Grade B PSL 2 Pipes |
Material | Carbon Steel |
Standard | API 5L |
Grade | Grade B |
Type | Seamless and Welded |
Outer Diameter (OD) | 1/2" to 60" (21.3mm to 1524mm) |
Wall Thickness | SCH 20, SCH 40, SCH 80, SCH 160, XXS |
Length | Random or Fixed Length (6-12 meters) |
Ends | Plain End, Beveled End, Threaded |
Coating | External 3LPE, FBE, or as specified |
- | Internal Cement Mortar Lining, as specified |
- | External and Internal Epoxy Coating, as specified |
- | External and Internal Liquid Epoxy Lining, as specified |
- | Other coatings as required |
Tolerance | According to API 5L specifications |
Chemical Composition | C, Mn, P, S, Si, Ni, Cr, Mo, V, Cu, Ti, Nb, Al, N, CEpcm |
Mechanical Properties | Yield Strength: ≥ 245 MPa (35,500 psi) for grades ≤ L245 or B |
- | ≥ 290 MPa (42,100 psi) for grades > L245 or B |
- | Tensile Strength: ≥ 415 MPa (60,200 psi) |
- | Elongation: As per API 5L Table 11 |
1 -API 5L elongation figures vary with specimen dimensions. Values shown for 0.2 sq. in. specimen. Line pipe mechanical testing usually omits Reduction of Area (RA) measurement reporting, and Charpy V-Notch (CVN) testing. This prevents use of this pipe as body material above 36 ksi yield strength for API Spec 6A equipment without retesting for Reduction of Area, and in the case of low temperature service, Charpy V-Notch testing as well.
Element | Composition Range (%) |
Carbon (C) | 0.24 - 0.45 |
Manganese (Mn) | 1.20 - 1.40 |
Phosphorus (P) | ≤ 0.025 |
Sulfur (S) | ≤ 0.015 |
Silicon (Si) | 0.40 |
Nickel (Ni) | ≤ 0.50 |
Chromium (Cr) | ≤ 0.50 |
Molybdenum (Mo) | ≤ 0.15 |
Vanadium (V) | ≤ 0.10 |
Copper (Cu) | ≤ 0.50 |
Titanium (Ti) | ≤ 0.06 |
Niobium (Nb) | ≤ 0.06 |
Aluminum (Al) | ≥ 0.02 |
Nitrogen (N) | ≤ 0.012 |
Carbon Equivalent (CEpcm) | ≤ 0.45 |
Property | Minimum Value |
Yield Strength | ≥ 245 MPa (35,500 psi) for grades ≤ L245 or B |
- | ≥ 290 MPa (42,100 psi) for grades > L245 or B |
Tensile Strength | ≥ 415 MPa (60,200 psi) |
Elongation | See API 5L Table 11 |
Impact Test | Required for all grades and sizes |
- | Impact energy values vary depending on grade, size, and wall thickness |
Hardness | Maximum 250 HV10 or 25 HRC |
CVN Impact Testing | Impact test on longitudinal specimens, minimum average of 3 tests, with a minimum of 2 tests at or above specified minimum value |
Leading Carbon Steel Pipe and Tube Manufacturer, Supplier, and Stockist in India is Ryno Piping Solution Inc. due to the efficacy and dependability of its products. Each month, we deliver containers of carbon steel pipe and tube to Indian ports for a range of clients.
Bengaluru | Mumbai | Chennai | Hyderabad | Kolkata | Pune |
New Delhi | Ahmedabad | Jaipur | Surat | Salem | Gandhinagar |
Bhiwandi | Tiruppur | Sivakasi | Jamnagar | Thiruvananthapuram | Rajahmundry |
Bhubaneswar | Vijaywada | Firozabad | Agra | Rajkot | Bharuch |
Panna | Raipur | Cochin | Ludhiana | Panipat | Durgapur |
Peenya | Pimpri-Chinchwad | Channapatna | Kharagpur | Nashik | Indore |
Varanasi | Haldia | Rourkela | Navi Mumbai | Moradabad | Noida |
The United Arab Emirates, Europe, Africa, Asia, and all other continents are among the destinations for Ryno Piping Solution Inc.' exports of Carbon Steel Pipe and Tube. We export carbon steel pipe and tubes to a number of countries each month. As a result of our expanding customer base, we currently export two containers of carbon steel pipe and tubes to new locations and ports each month.
Saudi Arabia | Qatar | Canada | Bangladesh |
Oman | UAE | Venezuela | Turkey |
Kuwait | Africa | United Kingdom | Singapore |
Netherlands | China | Malaysia | Sri Lanka |