Haihao Group is proud to support the LNG industry by supplying high-performance seamless steel pipes tailored for cryogenic and low-temperature service applications. Our recent delivery to a client in Indonesia highlights our capability to provide precision-engineered pipes that meet the stringent requirements of LNG processing, storage, and transport systems.
Haihao Group seamless steel pipes ASME A333 Gr.6 and A312 TP 316L prepared for shipment to an Indonesian customer
Why Seamless Steel Pipes Are Critical for LNG Projects
LNG projects demand piping systems capable of withstanding extreme low temperatures, high internal pressures, and corrosive environments. Seamless steel pipes are preferred in such applications because they offer:
- Leak-proof construction, reducing risk of failure in cryogenic conditions
- Excellent impact toughness at low temperatures, ensuring safety and durability
- Smooth internal surface, minimizing flow resistance and ice formation
- High mechanical strength, supporting both static and dynamic loads in LNG facilities
Supplied Seamless Steel Pipe Details
For this project, Haihao Group provided two types of materials to fulfill the technical and safety requirements of LNG service:
Carbon Steel Pipes (A333 GR.6) — suitable for low-temperature and cryogenic environments.
Stainless Steel Pipes (A312 TP316L) — ideal for handling liquefied gas and corrosive media.
Haihao Group conducts quality inspections for seamless steel pipe
The specification sheet required by the customer
| Standard | Material Grade | Outside Diameter (Inch) | Wall Thickness (mm) | Length (m) |
|---|---|---|---|---|
| ASME B36.10 | A333 GR.6 | 4″ | 6.02 | 6 |
| ASME B36.10 | A333 GR.6 | 6″ | 10.97 | 6 |
| ASME B36.10 | A333 GR.6 | 6″ | 21.95 | 6 |
| ASME B36.19M | A312 TP316L | 3″ | 5.49 | 6 |
| ASME B36.19M | A312 TP316L | 6″ | 14.27 | 6 |
Key Features and Advantages for LNG Applications
Low-Temperature Toughness: Carbon steel pipes (A333 GR.6) are normalized to provide impact resistance at temperatures as low as -45°C.
Corrosion Resistance: Stainless steel pipes (A312 TP316L) offer superior resistance to chloride-induced stress corrosion cracking, ideal for seawater and LNG handling.
Compliance with LNG Standards: Manufactured as per ASME B36.10 and ASME B36.19M with full traceability and material certification (EN 10204 3.1).
Precision Beveled Ends (BE): Prepared for seamless butt welding installation to ensure zero-leakage pipelines.
Strict Quality Control: Dimensional accuracy, wall thickness verification, NDT testing (UT, RT), PMI inspection, and hydrostatic tests completed before dispatch.
Packing & Delivery
All pipes were packed in strong wooden cases and steel-framed bundles with plastic caps on both ends to prevent mechanical damage and corrosion during transportation. Shipment was arranged to meet the client’s project schedule in Indonesia.
Why Choose Haihao Group for LNG Piping Solutions?
- Over 30 Years of Manufacturing Excellence
- API 5L, ISO 9001, CE, PED Certified
- Proven LNG Project References Worldwide
- Tailored Solutions for Cryogenic and Corrosive Environments
- Competitive Lead Time & Global Logistic Support
Haihao Group remains your reliable partner for delivering premium seamless steel pipes designed for LNG industry needs. With our comprehensive product range, advanced manufacturing facilities, and strict quality assurance, we help ensure the safety, efficiency, and longevity of your LNG operations.
📧 For technical inquiries or a project-specific quotation, please contact:
Email: sales@haihaogroup.com
