Haihao Group Supplied ASTM A105 Flange Products to Singapore Project
Haihao Group has recently completed the manufacturing and shipment of a batch of flange products for a customer in Singapore. The order included ASTM A105 flanges in different configurations, including lap joint flanges, blind flanges, and long neck flanges, all manufactured according to ASME B16.5 requirements.
The supplied products were designed for Class 150 pressure applications and produced with ASTM A105 forged carbon steel material. With stable mechanical properties, good weldability, and reliable pressure performance, ASTM A105 flange products are widely used in oil & gas, petrochemical, power generation, and industrial piping systems.
For this Singapore project, Haihao Group provided customized flange solutions according to customer specifications, including dimensional requirements, pressure ratings, and connection types.
Project Overview: Customized Flange Supply for Singapore Customer
Flanges are essential components for pipeline connection, maintenance, and equipment installation. Different flange designs are selected according to pipeline layout and service requirements.
The ASTM A105 flange supplied in this order includes three typical flange types:
- Lap Joint Flange:Suitable for systems requiring frequent dismantling and alignment adjustment.
- Blind Flange:Used for pipeline isolation, pressure testing, and future pipeline expansion.
- Long Neck Flange:Designed with an extended hub structure to provide additional connection strength.
All products were manufactured according to ASME B16.5, ensuring dimensional accuracy and compatibility with international piping systems.
Supplied Flange Products Details
| Product | Size | Pressure Rating | Material | Standard |
| Lap Joint Flange | 4″ | CL150 | ASTM A105 | ASME B16.5 |
| Blind Flange | 1″ | CL150 | ASTM A105 | ASME B16.5 |
| Long Neck Flange | 1″ | CL150 | ASTM A105 | ASME B16.5 |
Material Advantages of ASTM A105 Forged Flanges
ASTM A105 is one of the most commonly used carbon steel forging materials for pressure pipeline components. It provides a combination of strength, toughness, and machinability, making it suitable for various industrial applications.
The ASTM A105 flange is commonly selected for:
- Oil and gas pipeline systems
- Refineries and chemical plants
- Steam and utility piping
- Pressure vessel connections
- General industrial piping projects
Compared with standard carbon steel components, forged ASTM A105 flanges provide better structural integrity and more consistent mechanical performance, especially under pressure service conditions.
Haihao Group ASTM A105 flange shipment including lap joint flange and blind flange for Singapore project
Manufacturing Quality Control at Haihao Group
To ensure product reliability, Haihao Group performs strict quality inspections during flange production. The manufacturing process includes:
- Raw material verification
- Chemical composition analysis
- Mechanical property testing
- Dimensional inspection
- Pressure rating verification
- Surface quality inspection
For the Singapore order, each ASTM A105 flange was produced according to customer requirements and ASME B16.5 specifications. The finished products were inspected before packing and shipment to ensure safe installation at the project site.
Haihao Group’s Flange Manufacturing Capability
With decades of experience in pipeline components manufacturing, Haihao Group supplies a wide range of forged flanges, including weld neck flanges, slip-on flanges, socket weld flanges, threaded flanges, blind flanges, and lap joint flanges.
The company supports international customers with customized production based on drawings, standards, materials, and application requirements.
Whether for standard piping systems or special engineering projects, Haihao Group can provide reliable ASTM A105 flange solutions with professional manufacturing and quality control.
Contact Haihao Group for customized flange products for your next pipeline project.