API 5L X70 / L485
API 5L X70ISO 3183 L485
حالة المخزونMill indent
مدة التوريد4 - 8 weeks mill indent
High strength thermomechanically rolled line pipe for long distance, large diameter transmission. X70 is specified where the pipeline economics are driven by wall thickness and steel tonnage over hundreds of kilometres.
- PSL2 supply with controlled chemistry and impact testing
- Sour service variants to NACE MR0175 / ISO 15156 on request
- Bevelled ends, 3LPE / 3LPP coating and hydrotest reports arranged
- Third-party inspection and EN 10204 3.2 certification available
الأشكال والمقاسات المتوفرة
| الشكل | نطاق المقاسات |
|---|---|
| الأنابيب غير الملحومة و الأنابيب | 1/2" - 24" NB, SCH 20 - SCH 160 / XXS |
| الأنابيب الملحومة | 6" - 56" OD, ERW, EFW and LSAW, 4 - 25 mm wall |
| الفلنجات | 1/2" - 48", 150# - 2500#, WN / SO / blind |
| الوصلات | 1/2" - 48" butt weld elbows, tees, reducers and caps |
التركيب الكيميائي (%)
| العنصر | الحد الأدنى | الحد الأقصى |
|---|---|---|
| C | - | 0.24 (PSL2 seamless) |
| Mn | - | 1.40 - 1.65 |
| P | - | 0.025 |
| S | - | 0.015 |
| CEpcm | - | 0.25 (sour service) |
الخصائص الميكانيكية
| الخاصية | القيمة | الوحدة |
|---|---|---|
| Yield Strength (0.5% EUL) | 485 - 635 | MPa |
| Tensile Strength | 570 - 760 | MPa |
| Yield / Tensile ratio | 0.93 max (PSL2) | - |
| Charpy V-notch | 27 J min at 0 C (average of 3) | J |
الخصائص الفيزيائية
| الخاصية | القيمة | الوحدة |
|---|---|---|
| Density | 7.85 | g/cm3 |
| Modulus of Elasticity | 210 | GPa |
التطبيقات النموذجية
Large diameter gas transmission
Long distance trunk pipelines
High pressure export lines
Pipeline loops and expansions
أسئلة متكررة
[ 02 ] درجات أخرى في OCTG & Line Pipe
API 5L X52 / L360
Mill indentAPI 5L X52ISO 3183 L360
The baseline transmission grade. X52 balances weldability against pressure rating, which is why it remains the default for gathering lines, utility piping and plant interconnects where wall thickness rather than yield strength drives the design.
4 شكل متوفر
API 5L X65 / L450
Mill indentAPI 5L X65ISO 3183 L450
The workhorse offshore and high-pressure grade. The higher yield allows a thinner wall at the same design pressure, cutting pipe weight on risers and long tie-backs, and X65 is the grade most often specified with sour service and HIC testing.
4 شكل متوفر