Aluminum Flange Introduction
An aluminum flange is a pipe fitting made of aluminum, commonly used at the end of pipelines to connect with valves, pumps, instruments, or other equipment. It provides a detachable interface and can withstand high pressure and high temperatures. Aluminum flanges are typically made of aluminum alloys, characterized by their lightweight, corrosion resistance, and relatively low cost. Due to these advantages, they are widely used in industrial and marine applications that involve harsh environments.
Alloy No.
MC Aluminum Alloy Flange Material Options
Aluminum 1100
Aluminum 2024
Aluminum 3003
Aluminum 5083
Aluminum 5086
Aluminum 6061
Aluminum 6063
Types
Types of Aluminum Flanges:
Flat Face Flange (FF): The flange surface is flat, commonly used in low-pressure and low-temperature environments.
Raised Face Flange (RF): The flange face is slightly raised, suitable for high-pressure and high-temperature environments with significant temperature variations.
Male-Female Flange (MF): The flange has a concave surface, designed for applications requiring higher sealing performance.
Back-to-Back Flange (BB): Two flanges are installed face to face with a gasket in between, used in high-pressure and high-temperature conditions.
Specification
Flange Type | SO,BL, PL,WN,TH,SW,LJ |
| Color | Silver |
Material | 1000-7000 Series |
Alloy | Aluminum 1100, 2014, 2024, 5052, 5083, 5086, 6061 T6/T651, 6063, 6082 T6/T651, 7075 |
Size Range | 1/2''-24'' |
Class | 150LBS-2500LBS, PN6-PN40 |
| coating | Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized |
Surface Treatment | Anodized |
Standard | ANSI B16.5,ANSI B16.47,DIN2576,DIN2502, |
| Custom Design | According to your drawing | AS, BS, ANSI, DIN, JIS | Equal and reduced configurations |
| Application | Offshore, Oil Field, Shipbuilding, Water System, Natural Gas, Pipe Projects, Electric Power, etc |
Advantages
Advantages of Aluminum Alloy Flanges:
✅ Lightweight: Compared to stainless steel and carbon steel flanges, aluminum flanges have lower density, effectively reducing structural weight.
✅ Excellent Corrosion Resistance: Particularly for 5-series aluminum alloys, offering superior resistance to seawater and chemical exposure.
✅ Good Thermal Conductivity: Ideal for applications requiring rapid heat dissipation, such as heat exchange systems.
✅ Easy Machining & Weldability: Aluminum flanges are easy to cut, drill, and weld, making them suitable for various connection methods.
✅ Eco-Friendly & Recyclable: Aluminum alloys are fully recyclable, meeting environmental sustainability requirements.
