Haihao Group Delivers ASTM A105N Carbon Steel Flanges to Singapore Customer
Haihao Group has successfully completed the supply and shipment of a comprehensive range of carbon steel flanges for a customer in Singapore.
The order covers multiple ASME B16.5 flange types, pressure classes, and wall thicknesses, manufactured from ASTM A105N normalized carbon steel to meet the requirements of industrial piping systems.
These flanges are widely used in oil & gas, petrochemical, power generation, and general industrial applications across Southeast Asia.
Scope of Supply – ASME B16.5 A105N Flanges
The shipment includes a broad selection of raised face (RF) carbon steel flanges, ensuring compatibility with different piping layouts and pressure ratings.
ASTM A105N carbon steel ASME B16.5 flanges including SORF, WNRF and BLRF supplied by Haihao Group to Singapore customer
Slip-On Raised Face (SORF) Flanges
- Sizes: 3″, 5″, 6″, 10″, 16″
- Pressure ratings: Class 150 & Class 300
- Standard: ASME B16.5
- Material: ASTM A105N
Weld Neck Raised Face (WNRF) Flanges
- Sizes: 3″, 4″, 12″
- Pressure ratings: Class 150 & Class 600
- Wall thicknesses: STD, SCH 40, SCH 80
- Designed for high-strength and high-pressure service
Blind Raised Face (BLRF) Flanges
- Sizes from 3/4″ up to 20″
- Pressure ratings: Class 150 & Class 300
- Used for pipeline isolation, maintenance, and pressure testing
Socket Weld and Threaded Flanges
- SWRF flange: 1-1/2″, Class 300, SCH 80
- THRF flange: 3/4″, Class 150
- Suitable for compact piping systems and small-bore connections
All flanges were manufactured in strict accordance with ASME B16.5 dimensional tolerances.
Material Quality – ASTM A105N Carbon Steel
All products in this shipment were produced using ASTM A105N normalized carbon steel, offering:
- Stable mechanical properties
- Improved toughness and strength
- Excellent weldability
- Reliable performance under pressure
Normalization heat treatment ensures consistent material structure, making A105N flanges a preferred choice for critical piping applications in Singapore’s industrial environment.
Manufacturing and Quality Assurance
To ensure project compliance and long-term service reliability, Haihao Group implemented:
- Full material traceability from raw material to finished flanges
- Dimensional inspection per ASME B16.5
- Surface and visual inspection before shipment
- Strict control of wall thickness and pressure ratings
Each flange was carefully packed to prevent damage during international transportation to Singapore.
Trusted Carbon Steel Flange Supplier for Singapore Projects
With extensive experience supplying ASTM A105N ASME B16.5 flanges to Southeast Asia, Haihao Group continues to support customers in Singapore with reliable, standards-compliant piping components.
From slip-on and weld neck flanges to blind, socket weld, and threaded flanges, Haihao Group provides flexible solutions for a wide range of industrial applications.