API 5L X70 TUBE
API 5L X70 tube is a high-strength carbon steel line pipe used for the transportation of
oil, gas, water, and other fluids under very high-pressure conditions. Also known as L485
tube,
it offers a minimum yield strength of 70 Ksi (485 MPa), making it ideal for critical
pipeline and structural applications. API 5L X70 tubes are manufactured in accordance
with API 5L and ISO 3183 standards.
These tubes are widely used in onshore and offshore pipeline systems, including sour
service environments where superior strength, toughness, and reliability are required.
API 5L X70 PSL2 tubes are commonly supplied with black paint, varnish, oil coating, or
advanced anti-corrosion coatings.
API 5L X70 tubes are available in a wide range of sizes, wall thicknesses, and schedules.
They are extensively used in oil & gas pipelines, long-distance transmission lines,
water transportation systems, power plants, construction, and heavy engineering
applications.
Revinox is a reliable supplier of API 5L X70 tubes, providing products that
comply with international quality standards and project-specific requirements.
API 5L X70 Tube, API 5L X70 Tube Specifications, API 5L X70 Tube Dimensions,
API 5L X70 PSL2 Tubes, API 5L X70 Tube Schedule,
API 5L X70 Tube Manufacturer In India, API 5L X70 Tube Supplier
Application of API 5L X70 Tubes
| ● High-Pressure Oil & Gas Transmission Pipelines |
| ● Long-Distance Pipeline Projects |
| ● Petrochemical & Refinery Applications |
| ● Offshore & Onshore Pipeline Systems |
Specification Table of API 5L X70 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 X70 / L485 |
| PSL |
Delivery Condition |
Tube Grade |
| PSL 1 |
As-rolled, normalized, normalizing formed |
X70 |
| PSL 2 |
As-rolled, normalized, normalized and tempered |
X70N |
|
Quenched and tempered |
X70Q |
|
Thermomechanical rolled or thermomechanical formed |
X70M |
| 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 X70 TUBE
| Steel Grade |
C |
Si |
Mn |
P |
S |
V |
Nb |
Ti |
CE IIW |
CE Pcm |
|
max |
max |
max |
| Seamless & Welded Tube |
| X70N |
0.24 |
0.45 |
1.85 |
0.025 |
0.015 |
0.10 |
0.05 |
0.04 |
0.43 |
0.25 |
| X70Q |
0.18 |
0.45 |
1.85 |
0.025 |
0.015 |
0.05 |
0.05 |
0.04 |
0.43 |
0.25 |
|
Cu ≤ 0.50% | Ni ≤ 0.30% | Cr ≤ 0.30% | Mo ≤ 0.15% | No Boron
|
Tensile and Yield Strength of – API 5L X70 TUBE (PSL 1 & PSL 2)
| Tube Grade |
Yield Strength (PSI Min) |
Tensile Strength (PSI Min) |
Elongation |
Weld Seam Tensile (PSI Min) |
| X70 |
70,000 |
82,700 |
As per API 5L |
82,700 |
| Tube Grade |
Yield Strength (PSI) |
Tensile Strength (PSI) |
Y/T Ratio Max |
Weld Seam Tensile (PSI Min) |
| Min |
Max |
Min |
Max |
|
|
| X70N / X70Q / X70M |
70,000 |
90,000 |
82,000 |
110,000 |
0.93 |
82,000 |
Tolerances for Outside Diameter, Out-of-Roundness and Wall Thickness – API 5L X70
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 |
