API 5L X42 TUBE
API 5L X42 tube is a high-quality carbon steel line pipe widely used for the transportation of oil, gas, water, and other fluids under moderate to high-pressure conditions. Also known as L290 tube, it offers a minimum yield strength of 42 Ksi (290 MPa), making it a reliable and cost-effective solution for pipeline and structural applications. API 5L X42 tubes are manufactured in accordance with API 5L and ISO 3183 standards, ensuring excellent weldability, toughness, and long-term performance.
These tubes are commonly used in both onshore and offshore pipeline systems, including sour service environments where resistance to corrosion and mechanical stress is essential. API 5L X42 PSL2 tubes are often supplied with protective coatings such as black paint, varnish, oil coating, or anti-corrosion finishes to enhance durability and service life in aggressive operating conditions.
API 5L X42 tubes are available in a wide range of sizes, wall thicknesses, and schedules to meet diverse project requirements. They are extensively used in oil & gas transmission lines, water pipelines, construction, power generation, and general engineering applications due to their versatility and dependable mechanical properties.
Revinox is a reliable supplier of API 5L X42 tubes, delivering products that comply with international quality standards. These tubes are ideal for projects requiring strength, dimensional accuracy, and consistent performance.
API 5L X42 Tube, API 5L X42 Tube Specifications, API 5L X42 Tube Dimensions, API 5L X42 PSL2 Tubes, API 5L X42 Tube Schedule, API 5L X42 Tube Manufacturer In India, API 5L X42 Tube Supplier
Application of API 5L X42 Tubes
| ● Oil & Gas Transmission Pipelines |
| ● Water Supply & Distribution Systems |
| ● Petrochemical & Refinery Applications |
| ● Construction & Structural Engineering |
Specification Table of API 5L X42 Tubes
| Specification | Details | |
|---|---|---|
|
Product Specification
|
API 5L, PSL-1, PSL-2 | |
|
Size
|
1/2″ to 24″, * sizes above 24” NPS available on request | |
|
Schedule
|
SCH 10, SCH 40, SCH 80, SCH 160 up to SCH XXS as per API 5L | |
|
Type
|
Seamless, ERW, Welded, LSAW | |
|
Grade
|
Grade X42 / L290 | |
Delivery Condition
| PSL | Delivery Condition | Tube Grade |
|---|---|---|
| PSL 1 | As-rolled, normalized, normalizing formed | X42 |
| PSL 2 | As-rolled, normalized, normalized and tempered | X42N |
| Quenched and tempered | X42Q | |
| Thermomechanical rolled or thermomechanical formed | X42M |
Process of Manufacturing
| Type of Tube | PSL 1 | PSL 2 | |||
|---|---|---|---|---|---|
| Grade A | Grade B | X42 to X70 | B to X80 | X80 to X100 | |
| SMLS | ✔ | ✔ | ✔ | ✔ | ✔ |
| LFW | ✔ | ✔ | ✔ | ||
| HFW | ✔ | ✔ | ✔ | ✔ | |
| LW | ✔ | ||||
| SAWL | ✔ | ✔ | ✔ | ✔ | ✔ |
| SAWH | ✔ | ✔ | ✔ | ✔ | ✔ |
|
SMLS – Seamless Tube, without weld LFW – Low frequency welded tube, <70 kHz HFW – High frequency welded tube, >70 kHz SAWL – Submerged-arc welded longitudinal tube SAWH – Submerged-arc welded helical tube |
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Chemical Composition Table For API 5L X42 TUBE
| Steel Grade | Mass fraction, % based on heat and product analyses | ||||||
|---|---|---|---|---|---|---|---|
| C | Mn | P | S | V | Nb | Ti | |
| max | max | max | max | max | max | max | |
|
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| X42 | 0.28 | 1.30 | 0.030 | 0.030 | d | d | d |
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| X42 | 0.26 | 1.30 | 0.030 | 0.030 | d | d | d |
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a. Cu ≤ 0.50%, Ni ≤ 0.50%, Cr ≤ 0.50%, Mo ≤ 0.15% b. Mn increase permitted with reduced carbon as per API 5L limits c. Nb + V ≤ 0.06% unless otherwise agreed d. Nb + V + Ti ≤ 0.15% e. No deliberate addition of Boron; residual B ≤ 0.001% |
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Chemical Composition Table for API 5L X42 TUBE
| Steel Grade | Mass fraction, % based on heat and product analyses | Carbon Equivalent | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | Si | Mn | P | S | V | Nb | Ti | Other | CE IIW | CE Pcm | |||||||||||
| max | max | max | max | max | max | max | max | max | max | ||||||||||||
|
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| X42N | 0.24 | 0.45 | 1.40 | 0.025 | 0.015 | 0.10 | 0.05 | 0.04 | d,e,l | 0.42 | 0.25 | ||||||||||
| X42Q | 0.18 | 0.45 | 1.50 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | e,l | 0.42 | 0.25 | ||||||||||
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| X42M | 0.22 | 0.45 | 1.40 | 0.025 | 0.015 | d | d | d | e,l | 0.42 | 0.25 | ||||||||||
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a. CE limits apply as per API 5L PSL2 requirements b. Mn increase permitted with reduced carbon as per API 5L c. Nb + V ≤ 0.06% unless otherwise agreed d. Nb + V + Ti ≤ 0.15% e. Cu ≤ 0.50%, Ni ≤ 0.30%, Cr ≤ 0.30%, Mo ≤ 0.15% unless otherwise agreed l. No intentional addition of Boron permitted; residual B ≤ 0.001% |
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Tensile and Yield Strength of – API 5L X42 TUBE (PSL 1 & PSL 2)
| Tube Grade | Tensile Properties – Tube Body of SMLS and Welded Tubes PSL 1 | Seam of Welded Tube | ||
|---|---|---|---|---|
| Yield Strength a | Tensile Strength a | Elongation | Tensile Strength b | |
| Rt0.5 PSI Min | Rm PSI Min | (in 2in Af % min) | Rm PSI Min | |
| X42 | 42,000 | 60,200 | c | 60,200 |
| a. For intermediate grade, the difference between the specified minimum tensile strength and yield strength shall be as given for the next higher grade. | ||||
| b. The specified minimum tensile strength for the weld seam shall be the same as that of the tube body. | ||||
| c. The specified minimum elongation Af shall be calculated as per API 5L. | ||||
| Tube Grade | Tensile Properties – Tube Body of SMLS and Welded Tubes PSL 2 | Seam of Welded Tube | |||||
|---|---|---|---|---|---|---|---|
| Yield Strength a | Tensile Strength a | Ratio a,c | Elongation | Tensile Strength d | |||
| Rt0.5 PSI | Rm PSI | R10.5/Rm | (in 2in) | Rm PSI | |||
| Min | Max | Min | Max | Max | Min | Min | |
| X42N / X42Q / X42M | 42,000 | 65,300 | 60,200 | 82,700 | 0.93 | f | 60,200 |
| a. For intermediate grades, refer to full API 5L specification. | |||||||
| d. Weld seam tensile strength shall be equal to tube body tensile strength. | |||||||
| f. Elongation Af shall be calculated using the API 5L equation. | |||||||
Tolerances for Outside Diameter, Out-of-Roundness and Wall Thickness – API 5L X42 Tube
| Specified Outside Diameter D (in) | Diameter Tolerance (in) | Out-of-Roundness Tolerance (in) | ||||
|---|---|---|---|---|---|---|
| Tube Except the End a | Tube End a,b,c | Tube Except the End a | Tube End a,b,c | |||
| SMLS Tube | Welded Tube | SMLS Tube | Welded Tube | |||
| < 2.375 | -0.031 to +0.016 | -0.031 to +0.016 | 0.048 | 0.036 | ||
| ≥ 2.375 to 6.625 | 0.020D for | 0.015D for | ||||
| ± 0.0075D | -0.016 to +0.063 | D/t ≤ 75 | D/t ≤ 75 | |||
| By agreement | By agreement | |||||
| D/t ≤ 75 | D/t ≤ 75 | |||||
| > 6.625 to 24.000 | ± 0.0075D | ± 0.0075D (max 0.125) | ± 0.005D (max 0.063) | 0.020D | 0.015D | |
| > 24 to 56 | ± 0.01D | ± 0.005D (max 0.160) | ± 0.079 | ± 0.063 | 0.015D (max 0.060) | 0.01D (max 0.500) |
| For | For | |||||
| D/t ≤ 75 | D/t ≤ 75 | |||||
| By agreement | By agreement | |||||
| For | For | |||||
| D/t ≤ 75 | D/t ≤ 75 | |||||
| > 56 | As agreed | |||||
| a. Tube end includes a length of 4 in at each extremity. | ||||||
| b. For SMLS tube, tolerances apply for t ≤ 0.984 in; thicker tubes as agreed. | ||||||
| c. For expanded tube with D ≥ 8.625 in, diameter tolerance may be based on ID. | ||||||
| d. Diameter = measured circumference divided by π. | ||||||
| Wall Thickness | Tolerances a |
|---|---|
| t (inches) | inches |
| SMLS Tube b | |
| ≤ 0.157 | -0.012 |
| > 0.157 to < 0.948 | +0.150t / −0.125t |
| ≥ 0.984 | +0.146 or +0.1t (greater) |
| −0.120 or −0.1t (greater) | |
| Welded Tube c,d | |
| ≤ 0.197 | ± 0.020 |
| > 0.197 to < 0.591 | ± 0.1t |
| ≥ 0.591 | ± 0.060 |
| a. Minus tolerance smaller than listed increases plus tolerance accordingly. | |
| b. Local wall thickness may exceed plus tolerance by 0.05t if mass is compliant. | |
| c. Plus tolerance does not apply to the weld area. | |
| d. Refer to full API 5L specification for details. | |