Haihao Group Supplies ASTM B366 WPNCMC Pipe Fittings and UNS N06625 Reducers for Singapore Project
Haihao Group has successfully completed the production and shipment of a batch of ASTM B366 WPNCMC pipe fittings for a valued customer in Singapore. The order includes nickel alloy long radius elbows, eccentric reducers, and concentric reducers manufactured in accordance with ASME B16.9 requirements.
Designed for highly corrosive and high-temperature service environments, these fittings were produced using ASTM SB/B366 WPNCMC and ASTM B564 UNS N06625 materials. To ensure long-term reliability, all products underwent solution heat treatment and full mechanical property verification before shipment.
Throughout this project, Haihao Group maintained strict dimensional control, comprehensive material traceability, and detailed quality inspections to ensure every fitting complied with the customer’s engineering specifications.
Shipment Details
| Product | Specification | Material | Standard |
| 90° Long Radius Elbow | 3″ SCH40S | ASTM SB/B366 WPNCMC | ASME B16.9 |
| Eccentric Reducer | 4″ × 3″ SCH40S | ASTM SB/B366 WPNCMC | ASME B16.9 |
| Concentric Reducer | 4″ × 3″ SCH40S | ASTM B564 UNS N06625 | ASME B16.9 |
| 90° Long Radius Elbow | 3″ SCH40S | ASTM SB/B366 WPNCMC | ASME B16.9 |
ASTM B366 WPNCMC Pipe Fittings for Severe Corrosion Service
The main products in this shipment are ASTM B366 WPNCMC pipe fittings, a widely specified nickel alloy solution for offshore platforms, petrochemical plants, LNG facilities, desalination systems, and chemical processing equipment.
Compared with conventional stainless steel fittings, ASTM B366 WPNCMC pipe fittings provide:
- Outstanding resistance to chloride-induced pitting and crevice corrosion
- Excellent strength at elevated temperatures
- Superior oxidation resistance
- Reliable performance in seawater and sour service environments
- Long service life with reduced maintenance costs
Because of these advantages, ASTM B366 WPNCMC pipe fittings are frequently selected for critical piping systems where corrosion resistance and operational safety are essential.

ASTM B366 WPNCMC pipe fittings manufactured by Haihao Group
Solution Heat Treatment Ensures Stable Mechanical Properties
To satisfy the customer’s technical requirements, every fitting received solution heat treatment after forming.
This heat treatment process helps:
- Restore optimum corrosion resistance
- Improve microstructural uniformity
- Eliminate residual forming stress
- Maintain specified mechanical properties
- Increase long-term reliability in demanding operating conditions
The elbows were also manufactured with controlled back-wall thickness, ensuring excellent flow characteristics while maintaining pressure-bearing capability after bending.
Comprehensive Quality Inspection Before Delivery
Haihao Group follows strict inspection procedures throughout manufacturing.
| Inspection Item | Requirement |
| Raw Material Verification | ASTM SB/B366 WPNCMC & ASTM B564 UNS N06625 certified materials |
| Heat Treatment | Solution heat treatment completed |
| Mechanical Properties | Verified according to customer specifications |
| Dimensional Inspection | 100% inspection before shipment |
| Surface Finish | Clean surface without defects |
| Packaging | Protected for international sea transportation |
Reliable Nickel Alloy Pipe Fittings from Haihao Group
With more than 40 years of manufacturing experience, Haihao Group supplies a complete range of ASTM B366 WPNCMC pipe fittings, nickel alloy reducers, elbows, tees, caps, forged fittings, flanges, and custom piping components for customers worldwide.
Whether the application involves offshore engineering, chemical processing, LNG, power generation, or marine systems, our engineering team provides products manufactured to international standards with complete inspection documentation and responsive technical support.
If you are looking for a dependable supplier of ASTM B366 WPNCMC pipe fittings, Haihao Group is ready to support your next project with high-quality products, competitive pricing, and fast global delivery.
