API 5L X80 TUBE
API 5L X80 tube is a high-strength carbon steel line pipe designed for the transportation
of oil, gas, water, and other fluids under extremely high-pressure conditions.
Also known as L555 tube, it offers a minimum yield strength of 80 Ksi (555 MPa),
making it suitable for demanding pipeline and structural applications.
API 5L X80 tubes are manufactured in accordance with API 5L and ISO 3183 standards.
These tubes are extensively used in onshore and offshore pipeline systems,
including sour service applications where exceptional strength, toughness,
and resistance to harsh environments are required.
API 5L X80 PSL2 tubes are commonly supplied with black paint, varnish,
oil coating, or advanced anti-corrosion coatings.
API 5L X80 tubes are available in a wide range of outside diameters,
wall thicknesses, and schedules.
They are widely used in oil & gas pipelines, long-distance transmission lines,
water transportation systems, power plants, construction,
and heavy engineering applications.
Revinox is a trusted supplier of API 5L X80 tubes,
delivering products that meet international quality standards
and project-specific requirements.
API 5L X80 Tube, API 5L X80 Tube Specifications, API 5L X80 Tube Dimensions,
API 5L X80 PSL2 Tubes, API 5L X80 Tube Schedule,
API 5L X80 Tube Manufacturer In India, API 5L X80 Tube Supplier
Application of API 5L X80 Tubes
| ● Ultra High-Pressure Oil & Gas Transmission Pipelines |
| ● Long-Distance & Cross-Country Pipeline Projects |
| ● Petrochemical, Refinery & LNG Applications |
| ● Offshore & Onshore Pipeline Systems |
Specification Table of API 5L X80 Tubes
| Specification |
Details |
| Product Specification |
API 5L, PSL-1, PSL-2 |
| Size |
1/2″ to 24″, sizes above 24″ NPS on request |
| Schedule |
SCH 10, SCH 40, SCH 80, SCH 160 up to SCH XXS |
| Type |
Seamless, ERW, Welded, LSAW |
| Grade |
Grade X80 / L555 |
| PSL |
Delivery Condition |
Tube Grade |
| PSL 1 |
As-rolled, normalized, normalizing formed |
X80 |
| PSL 2 |
As-rolled, normalized, normalized and tempered |
X80N |
|
Quenched and tempered |
X80Q |
|
Thermomechanical rolled or thermomechanical formed |
X80M |
| Type of Tube |
PSL 1 |
PSL 2 |
| Grade A |
Grade B |
X70 to X80 |
B to X80 |
X80 to X100 |
| SMLS |
✔ |
✔ |
✔ |
✔ |
✔ |
| LFW |
✔ |
✔ |
✔ |
|
|
| HFW |
✔ |
✔ |
✔ |
✔ |
|
| LW |
|
|
✔ |
|
|
| SAWL |
✔ |
✔ |
✔ |
✔ |
✔ |
| SAWH |
✔ |
✔ |
✔ |
✔ |
✔ |
|
SMLS – Seamless Tube
LFW – Low Frequency Welded
HFW – High Frequency Welded
SAWL – Submerged Arc Welded Longitudinal
SAWH – Submerged Arc Welded Helical
|
Chemical Composition Table For API 5L X80 TUBE
| Steel Grade |
C |
Si |
Mn |
P |
S |
V |
Nb |
Ti |
CE IIW |
CE Pcm |
|
max |
max |
max |
| Seamless & Welded Tube |
| X80N |
0.22 |
0.45 |
1.90 |
0.025 |
0.015 |
0.10 |
0.06 |
0.04 |
0.45 |
0.25 |
| X80Q |
0.18 |
0.45 |
1.90 |
0.025 |
0.015 |
0.05 |
0.06 |
0.04 |
0.45 |
0.25 |
|
Cu ≤ 0.50% | Ni ≤ 0.50% | Cr ≤ 0.50% | Mo ≤ 0.30% | No Boron
|
Tensile and Yield Strength of – API 5L X80 TUBE (PSL 1 & PSL 2)
| Tube Grade |
Yield Strength (PSI Min) |
Tensile Strength (PSI Min) |
Elongation |
Weld Seam Tensile (PSI Min) |
| X80 |
80,000 |
95,000 |
As per API 5L |
95,000 |
| Tube Grade |
Yield Strength (PSI) |
Tensile Strength (PSI) |
Y/T Ratio Max |
Weld Seam Tensile (PSI Min) |
| Min |
Max |
Min |
Max |
|
|
| X80N / X80Q / X80M |
80,000 |
105,000 |
95,000 |
120,000 |
0.93 |
95,000 |
Tolerances for Outside Diameter, Out-of-Roundness and Wall Thickness – API 5L X80
Tube
| Specified Outside Diameter D (in) |
Diameter Tolerance (in) |
Out-of-Roundness (in) |
| Except End |
Tube End |
Except End |
Tube End |
| SMLS |
Welded |
SMLS |
Welded |
| < 2.375 |
-0.031 to +0.016 |
0.048 |
0.036 |
| > 2.375 to 6.625 |
±0.0075D |
-0.016 to +0.063 |
0.020D |
0.015D |
| > 6.625 to 24 |
±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 |
0.01D |
| > 56 |
As agreed |
| Wall Thickness (in) |
Tolerance |
| SMLS Tube |
| ≤ 0.157 |
-0.012 |
| > 0.157 to < 0.948 |
+0.150t / −0.125t |
| ≥ 0.984 |
±0.1t or ±0.146 (whichever is greater) |
| Welded Tube |
| ≤ 0.197 |
±0.020 |
| > 0.197 to < 0.591 |
±0.1t |
| ≥ 0.591 |
±0.060 |
