High-Performance Aluminum Flanges & More | Aluminum Flanges

Introduction: Your Trusted Source for Every Flange Solution

Welcome to Aluminum Flanges, your premier partner for industrial connection solutions. While our name highlights our deep expertise in aluminum flanges, we are a comprehensive supplier of all flange types crafted from a wide range of materials, including stainless steel, carbon steel, and specialty alloys.

image 1

This page focuses on the exceptional benefits of the aluminum flange. Prized for their lightweight design and outstanding corrosion resistance, aluminum flanges are precision-engineered connectors used to join pipes, valves, and equipment in critical systems. Whether you need a secure, leak-proof seal for an HVAC system or a weight-saving component for an aerospace application, we have the right aluminum flange for the job.

Why Choose an Aluminum Flange?

Engineers and project managers choose aluminum flanges when performance, efficiency, and longevity are paramount. Their unique properties offer significant advantages over heavier materials like steel.

  • Extremely Lightweight: With a density approximately one-third that of steel, aluminum flanges dramatically reduce overall system weight. This simplifies transportation, speeds up installation, and lowers structural support requirements, saving you time and labor costs.
  • Superior Corrosion Resistance: Aluminum naturally forms a protective oxide layer that shields it from moisture, chemicals, and saltwater. This makes aluminum flanges ideal for marine, chemical processing, and outdoor applications where rust and degradation are a concern.
  • Excellent Thermal Conductivity: Aluminum’s ability to efficiently transfer heat makes it a perfect choice for applications in heat exchangers, HVAC systems, and automotive cooling assemblies.
  • Versatility and Machinability: High-quality aluminum alloys like 6061-T6 are easily welded, machined, and formed, allowing for precise and reliable connections.
  • Sustainability: As a nearly 100% recyclable material, aluminum offers an environmentally responsible choice that supports your project’s sustainability goals.
fp picture1 new

Types of Aluminum Flanges We Supply

At Aluminum Flanges, our extensive inventory includes every standard and specialty aluminum flange type to meet your specific project requirements. Each design offers a unique benefit for different pressure ratings, installation methods, and service conditions.

Flange TypeConnection MethodTypical ApplicationKey Benefit
Weld Neck FlangeButt-welded to pipeHigh-pressure and high-temperature systemsSuperior strength and optimal flow
Slip-On FlangeSlips over pipe & fillet weldedLow-pressure fluid and utility linesCost-effective and easy to align
Threaded FlangeScrews onto threaded pipeSystems where welding is not viableFast, weld-free installation
Blind FlangeBolts to seal a pipe endPressure testing, system terminationProvides an easy and secure closure
Lap Joint FlangeUsed with a stub endSystems requiring frequent disassemblyAllows for easy alignment & reusability
Socket Weld FlangePipe inserted into a socket & weldedSmall-bore, high-pressure pipingStrong, leak-proof connection
Reducing FlangeConnects different pipe sizesAdapting system layoutsEliminates the need for a separate reducer
Spectacle BlindFigure-8 plateIsolating sections of pipeQuick and clear line isolation

Export to Sheets

Common Aluminum Flange Materials & Grades

The performance of an aluminum flange is determined by its alloy. We stock flanges made from the most trusted and versatile aluminum grades to ensure reliability in any environment.

  • Alloy 6061-T6: The industry workhorse. This heat-treatable alloy provides a fantastic balance of strength, weldability, and corrosion resistance, making it the go-to choice for general-purpose structural and piping applications.
  • Alloy 5052: Known for its excellent resistance to saltwater corrosion and superior formability. This grade is the top choice for marine, chemical, and industrial environments exposed to harsh elements.
  • Alloy 7075: One of the highest-strength aluminum alloys available. It is used in high-stress applications where weight is critical, such as in the aerospace and high-performance automotive industries.
image 3

Industries We Serve

The unique advantages of aluminum flanges make them essential components across a wide range of industries, including:

  • HVAC & Refrigeration: For lightweight and thermally conductive ductwork and cooling lines.
  • Marine & Shipbuilding: For durable, corrosion-free performance in saltwater bilge, ballast, and piping systems.
  • Aerospace & Automotive: To reduce weight and improve fuel efficiency in fuel lines, hydraulic systems, and engine components.
  • Chemical Processing: For reliable transfer of corrosive fluids.
  • Food & Beverage: Providing non-toxic, easy-to-clean connections for sanitary systems.
  • Water Treatment & Irrigation: Ensuring long service life in municipal and agricultural water networks.

Beyond Aluminum: Your Comprehensive Flange Supplier

While we are specialists in the aluminum flange, our capabilities extend to all your flange needs. Aluminum Flanges is your single source for a complete range of materials to meet any specification or budget.

Our full inventory includes:

  • Carbon Steel Flanges (A105, A350)
  • Stainless Steel Flanges (304/L, 316/L)
  • Duplex & Super Duplex Steel Flanges
  • Nickel Alloy Flanges (Inconel, Monel, Hastelloy)
  • And more!

We guarantee that all our products comply with international standards, including ASME B16.5, ASTM, DIN, and ISO, ensuring safety, reliability, and interchangeability.

Ready to Find Your Perfect Flange Solution?

Let our experts help you select the right flanges for your project’s unique demands. We offer competitive pricing and exceptional service.

Contact Us Today