ASTM B247 Aluminum 5083 Flanges are high-strength, corrosion-resistant aluminium flanges made from marine-grade alloy 5083 in annealed (O) condition. These flanges are widely used in marine, offshore, chemical, and cryogenic industries due to their excellent resistance to seawater corrosion, weldability, and lightweight properties.

What is ASTM B247 Aluminum 5083 Flange?

ASTM B247 Aluminium Alloy 5083 Flanges are forged aluminium components designed to connect pipes, valves, and equipment in piping systems. Manufactured from Grade 5083 Aluminium Flanges, these products offer exceptional corrosion resistance, especially in seawater and aggressive industrial environments.

The “O” temper indicates an annealed condition, providing improved ductility and formability, which is ideal for fabrication and welding.

As a leading Aluminium 5083 Flanges Manufacturer, we supply flanges that meet global standards such as ASME, ANSI, DIN, and JIS.

These ASTM B247 Aluminium Alloy 5083 Flanges are also known as marine-grade aluminium flanges, widely used for seawater applications, offshore structures, and lightweight piping systems. If you are looking for corrosion-resistant aluminium flange solutions, 5083 alloy is one of the most reliable choices.

Key Features of ASTM B247 Aluminium Alloy 5083 Flanges

  • Excellent seawater corrosion resistance
  • High strength-to-weight ratio
  • Superior weldability
  • Lightweight compared to steel
  • Performs well at low temperatures
  • Non-magnetic properties

These features make Aluminium Alloy 5083 Industrial Flanges Supplier products ideal for critical applications.

Types of ASTM B247 Aluminum 5083 Flanges

We manufacture and supply a wide variety of Aluminium A95083 Flange products:

➤ Aluminum 5083 Blind Flange

Used to seal the end of pipelines and pressure systems.

➤ 5083 Aluminum Slip On Flange

Ideal for low-pressure applications and easy installation.

➤ ASTM B247 Aluminum 5083 Companion Flange

Designed to work with stub ends for easy alignment.

➤ JIS Aluminum 5083 Stub End Flange

Commonly used in lap joint flange systems.

➤ Series A & B Aluminium 5083 Flange

Available in different dimensional standards.

As a trusted Aluminium 5083 Flanges Stockist, we maintain a ready inventory of all flange types.

ASTM B247 Aluminum 5083 Flanges Specifications

Parameter Details
Standard ASTM B247 / ASME SB247
Material Aluminium Alloy 5083-O
UNS No. A95083
EN Equivalent Aluminum 3.3547 Flanges
Size Range ½” to 48”
Pressure Class 150# to 2500#
Flange Types Slip On, Blind, Companion, Stub End
Face Type RF, FF, RTJ
Standards ASME, ANSI, DIN, JIS

Chemical Composition of Aluminium 5083

Element Composition (%)
Magnesium 4.0 – 4.9
Manganese 0.4 – 1.0
Chromium 0.05 – 0.25
Iron 0.4 max
Silicon 0.4 max
Aluminium Balance

Mechanical Properties of Grade 5083 Aluminium Flanges

Property Value
Tensile Strength 275 MPa
Yield Strength 125 MPa
Elongation 12%
Density 2.66 g/cm³

Applications of 5083 Aluminium Alloy Flanges

Our 5083 Aluminium Alloy Flanges Exporter in India supplies to:

  • Marine & Shipbuilding: Perfect for hull structures and seawater pipelines.
  • Oil & Gas Industry: Used in offshore drilling and piping systems.
  • Chemical Processing: Handles corrosive chemicals safely.
  • Cryogenic Systems: Maintains strength at low temperatures.
  • Structural Engineering: Used in lightweight frameworks.

Related Aluminium Steel Flanges

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Manufacturing Process & Quality Assurance

As a leading Stockist of ASME SB247 Aluminium Alloy 5083 Flanges, we follow strict quality procedures:

  • Raw material inspection
  • Forging and machining
  • Heat treatment (annealing)
  • Dimensional accuracy checks
  • Ultrasonic & radiographic testing
  • Third-party inspection

Our experience in supplying 5083 Aluminium Alloy Flanges Exporter in Mumbai, India ensures consistent quality and performance.

Why Choose Our Aluminium 5083 Flanges?

  • 10+ years industry experience
  • Ready stock for urgent delivery
  • Export to 20+ countries
  • Competitive pricing
  • Custom manufacturing available

As an established ASME SB247 Aluminium Alloy 5083 Flanges Stockist in Mumbai, we deliver quality you can trust.

Get Best Price for ASTM B247 Aluminum 5083 Flanges

Looking for a reliable Aluminium Alloy 5083 Industrial Flanges Supplier?

  • Bulk pricing discounts
  • Immediate dispatch
  • Custom sizes & specifications
  • Worldwide shipping

Contact us today to get a quick quotation.

Frequently Asked Questions

It is used in marine, offshore, and chemical industries due to its corrosion resistance and strength.
Yes, it offers excellent resistance to seawater corrosion, making it ideal for marine applications.
Equivalent grades include EN 3.3547 and UNS A95083.
No, they do not rust and have high corrosion resistance.
Blind, slip-on, companion, and stub end flanges are commonly available

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