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Help CenterHot-Rolled Seamless Pipe ASTM A53 Schedule 40 for Oil & Gas Pipelines
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As a specialized manufacturer since 2015, Hunan Yige Special Steel Science Technology Co., Ltd. delivers premium hot-rolled seamless pipes engineered for critical oil and gas applications. Our state-of-the-art 5,000-10,000 sqm facility in Changsha leverages advanced production techniques to create ASTM A53 Schedule 40 pipes that ensure leak-proof performance in high-pressure environments. With ISO9004 and ISO14000 certifications, we maintain rigorous quality control across all manufacturing stages, providing reliable pipeline solutions trusted by clients across six continents.
Core Advantages:
- Seamless Integrity: Hot-rolling process eliminates weld seams, preventing weak points and ensuring uniform wall thickness
- High-Pressure Resistance: Schedule 40 design withstands PSI ratings up to 3,000+ depending on diameter
- Corrosion Management: Carbon steel composition offers inherent resistance to sulfides and CO₂ in oil/gas streams
- Dimensional Precision: Strict adherence to ASTM A53 tolerances (±0.8% OD, ±12.5% WT)
Technical Specifications:
| Nominal Size (NPS) | Outer Diameter (in) | Wall Thickness (in) | Pressure Rating |
|---|---|---|---|
| 1/2" | 0.840 | 0.109 | 1,950 PSI |
| 2" | 2.375 | 0.154 | 1,330 PSI |
| 4" | 4.500 | 0.237 | 1,150 PSI |
| 8" | 8.625 | 0.322 | 980 PSI |
| 12" | 12.750 | 0.375 | 850 PSI |
All pipes undergo hydrostatic testing at 1.5x working pressure and non-destructive examination per ASTM standards. Available lengths range from 6-12m (custom cuts optional), with optional anti-corrosion coatings including black varnish or epoxy. The seamless construction reduces turbulence by 18% compared to welded alternatives, enhancing flow efficiency in transmission systems.
Operational Benefits:
- 30% longer service life than ERW pipes in abrasive slurry applications
- Reduced maintenance costs due to homogeneous material structure
- Compatibility with standard ASME B16.5 flanges and fittings
- Temperature resilience from -20°F to 750°F (-29°C to 400°C)
With exports reaching North America, South America, Europe, Asia, Africa and Oceania, our pipes support offshore platforms, refinery networks, and cross-country pipelines. The ISO14000 certification reflects our commitment to sustainable manufacturing, while flexible production allows for customized chemical compositions (e.g., enhanced sulfur resistance). Partner with us for bulk supply with container-load optimization and just-in-time delivery options.
FAQ:
Q: What is the minimum order quantity?
A: MOQ starts at 20 metric tons, with volume discounts available.
Q: Can you supply pipes outside standard Schedule 40 dimensions?
A: Yes, we offer custom thickness and diameter options upon request.
Q: What documentation accompanies shipments?
A: All deliveries include Mill Test Certificates (MTC) with chemical analysis and mechanical test reports.
Q: How do you ensure corrosion resistance?
A: We control carbon content at 0.30% max and offer optional internal linings for acidic environments.
Q: What is the typical production lead time?
A: Standard orders ship within 25 days after contract confirmation.
Q: Do you provide on-site technical support?
A: Engineering consultation is available for pipeline design integration.
Q: Are threaded ends available?
A: Yes, we can supply pipes with API 5B threaded or bevelled ends.
Q: How are pipes packaged for export?
A: Standard packaging includes plastic end caps and bundled with steel strips; wooden crates optional.
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