Precision in Every Connection: Haihao Group Delivers Critical Piping Components to Singapore Client
Hebei Haihao High Pressure Flange Pipe Fitting Group Co.,Ltd is pleased to announce the successful dispatch of a specialized order to a major client in Singapore. This shipment underscores Haihao Group’s continued commitment to providing reliable, high-performance piping solutions for essential energy and industrial infrastructure across the Asia-Pacific region.
The completed order features a combination of high-grade threaded pipe fittings and robust high-temperature stud bolts, all engineered to meet stringent international standards for demanding service conditions.
A105 NPT threaded male nipples ready for shipment
Forged Carbon Steel Fittings for Core Integrity
A key component of this delivery is the Male Nipple NPT Threaded Long Length-A105.
| Product | Specification | Material Grade | Standard |
| Threaded Male Nipple | DN25 (150mm length) | ASTM A105 | NPT Threaded |
The ASTM A105 material is a foundational grade in the oil and gas sector, specifically selected for its excellent mechanical strength and forgeability, making it ideal for the high-pressure piping systems where these fittings will be installed. The long length male nipple configuration is essential for extending connection points and facilitating piping adjustments in complex layouts, ensuring a secure, leak-resistant NPT threaded connection under operational stress.
High strength B7 2H stud bolt with nuts manufactured by Haihao Group
The Backbone of High-Temperature Flange Joints
Critical to maintaining the integrity of flanged connections—especially those subjected to thermal cycling and high pressures—is the bolting assembly. This order included several sizes of the industry-standard ASTM A193 Grade B7 stud bolts with corresponding ASTM A194 Grade 2H heavy hex nuts.
| Product | Size (Metric) | Material Grade | Application Environment |
| Stud Bolt & 2 Nuts | M18x80 to M24x250 | B7/2H | High-Pressure, High-Temperature Service |
The B7/2H bolting material combination is globally recognized as the robust solution for flange joint integrity in petrochemical and power generation plants. The Chromium-Molybdenum alloy steel (B7) is heat-treated for superior tensile strength, perfectly complemented by the quenched and tempered carbon steel nuts (2H), ensuring the bolts maintain their clamping force and prevent joint failure in elevated-temperature environments.
Haihao Group: Your Partner for Singapore and Asia-Pacific Projects
This delivery to Singapore exemplifies Haihao Group’s deep inventory specialization and swift fabrication capability. We understand the necessity of precise specifications and timely delivery in the global energy market. By supplying these critical piping components, we reaffirm our role as a trusted manufacturer capable of supporting challenging projects across the region.
From forged steel pipe fittings to specialized high-strength bolting, Haihao Group ensures every product meets the exacting standards required for safe and reliable pipeline operation.