API 5L X60 BUTTWELD FITTINGS
API 5L X60 Buttweld fittings are high-strength carbon steel piping components engineered for high-pressure and high-performance pipeline applications. Also referred to as L415 grade, these fittings offer a minimum yield strength of 60 Ksi (415 MPa) with excellent toughness, weldability, and resistance to mechanical stress. They are manufactured in compliance with API 5L and ISO 3183 standards.
API 5L X60 buttweld fittings are extensively used in onshore and offshore oil & gas pipelines, water transmission systems, petrochemical plants, refineries, and power generation projects. The fittings are available in elbows, tees, reducers, caps, and stub ends in a wide range of sizes, wall thicknesses, and schedules.
API 5L X60 Buttweld Fittings, API 5L X60 BW Fittings, API 5L X60 Elbow, Tee, Reducer & Cap, API 5L X60 PSL2 Buttweld Fittings, API 5L X60 Buttweld Fittings Manufacturer In India
Application of API 5L X60 Buttweld Fittings
| ● Oil & Gas Transmission Pipelines |
| ● High-Pressure Water Transmission Systems |
| ● Petrochemical & Refinery Piping |
| ● Power Plants & Heavy Engineering Projects |
Specification Table of API 5L X60 Buttweld Fittings
| Specification | Details | |
|---|---|---|
| Product Specification | API 5L, PSL 1, PSL 2 | |
| Size | 1/2″ to 48″ (ASME B16.9 / MSS SP-75) | |
| Schedule | SCH 10, SCH 40, SCH 80, SCH 160 up to SCH XXS | |
| Type | Elbow, Tee, Reducer, Cap, Stub End | |
| Manufacturing Standard | ASME B16.9, MSS SP-75 | |
| Grade | API 5L X60 / L415 | |
Delivery Condition
| PSL | Delivery Condition | Fitting Grade |
|---|---|---|
| PSL 1 | As-rolled, normalized | X60 |
| PSL 2 | Normalized, normalized & tempered | X60N |
| Quenched and tempered | X60Q | |
| Thermomechanically processed | X60M |
Manufacturing Process
API 5L X60 buttweld fittings are manufactured from seamless or welded pipes using hot forming, cold forming, or machining processes. Heat treatment is applied as per PSL 1 or PSL 2 requirements to achieve specified mechanical properties. All fittings are tested and inspected in accordance with API 5L and applicable dimensional standards.
| Type of Fitting | PSL 1 | PSL 2 | ||
|---|---|---|---|---|
| Grade B | X60 | X60N | X60Q / X60M | |
| Elbow | ✔ | ✔ | ✔ | ✔ |
| Tee | ✔ | ✔ | ✔ | ✔ |
| Reducer | ✔ | ✔ | ✔ | ✔ |
| Cap | ✔ | ✔ | ✔ | ✔ |
| Stub End | ✔ | ✔ | ✔ | ✔ |
|
Manufactured as per ASME B16.9 / MSS SP-75 Suitable for onshore and offshore pipeline applications |
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Chemical Composition – API 5L X60 Buttweld Fittings (PSL 1)
| Grade | C | Mn | P | S | V | Nb | Ti |
|---|---|---|---|---|---|---|---|
| X60 | 0.26 | 1.60 | 0.030 | 0.030 | d | d | d |
|
Cu ≤ 0.50%, Ni ≤ 0.50%, Cr ≤ 0.50%, Mo ≤ 0.15% Nb + V ≤ 0.06%, Nb + V + Ti ≤ 0.15% No intentional Boron; residual B ≤ 0.001% |
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Chemical Composition – API 5L X60 Buttweld Fittings (PSL 2)
| Grade | Chemical Composition % (Max) | Carbon Equivalent | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| C | Si | Mn | P | S | V | Nb | Ti | CE IIW | CE Pcm | |
| X60 | 0.26 | 0.45 | 1.70 | 0.030 | 0.030 | d | d | d | 0.45 | 0.26 |
|
Nb + V ≤ 0.06%, Nb + V + Ti ≤ 0.15% Cu ≤ 0.50%, Ni ≤ 0.30%, Cr ≤ 0.30%, Mo ≤ 0.15% No intentional Boron; residual B ≤ 0.001% |
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Mechanical Properties – API 5L X60 Buttweld Fittings
| Grade | Yield Strength (Min) | Tensile Strength (Min) | Elongation |
|---|---|---|---|
| X60 | 60,000 PSI (415 MPa) | 75,000 PSI (517 MPa) | As per API 5L |
| Applicable for PSL 1 & PSL 2. Mechanical properties refer to parent material. | |||
Dimensional Tolerances – API 5L X60 Buttweld Fittings
| Parameter | Tolerance |
|---|---|
| Nominal Wall Thickness | −12.5% (minimum), no positive tolerance |
| Local Wall Thickness | Permitted if minimum thickness is maintained |
| Weld Area Thickness | Not less than specified minimum |
| Tolerances as per ASME B16.9. Special limits on request. | |