5083 H321 Aluminium Sheets & Plates

We supply 5083 H321 Aluminium Sheets & Plates in India for shipbuilding, marine structures, pressure vessels, rail cars, vehicle bodies and other applications where Aluminium Alloy 5083 in the H321 temper is specified. The range includes 5083 H321 aluminium sheet and plate in different thicknesses, widths and lengths, subject to the required standard and material availability.

Our 5083 H321 material is supplied against the specified product requirement, including the alloy, temper, dimensions, quantity and applicable specification. For marine projects, the requirement may also include ASTM B928/B928M and relevant inspection or classification requirements.

5083 H321 Aluminium Sheets & Plates

5083 H321 Aluminium Sheets & Plates are supplied as flat-rolled aluminium products for applications that require the 5083 alloy in the H321 temper. The material is commonly specified for marine and transport-related applications and is also used for pressure vessels, rail cars, vehicle bodies, tip truck bodies, mine skips and cages.

The product can be supplied as:

  • 5083 H321 Aluminium Sheets
  • 5083 H321 Aluminium Plates
  • EN AW-5083 H321 Sheet & Plate
  • UNS A95083 H321 Aluminium Material
  • Marine Grade 5083 H321 Aluminium Plate
  • ASTM B928 5083 H321 Plate, where applicable

5083 is a non-heat-treatable aluminium-magnesium alloy. Published H321 product data identifies it as a marine-grade alloy with good seawater service performance and strong post-weld characteristics.

5083 H321 Aluminium Sheets & Plates Specifications

Specification Details
Alloy Aluminium Alloy 5083
Temper H321
Product Form Sheets & Plates
ASTM / ASME ASTM B209 / ASME SB209, where applicable
Marine Specification ASTM B928 / B928M, where applicable
European Designation EN AW-5083
UNS A95083
Werkstoff Number 3.3547
Alloy Designation AlMg4.5Mn / AlMg4.5Mn0.7
Surface Mill finish or as specified

The applicable specification should be stated in the purchase requirement because ASTM B209 and ASTM B928/B928M apply to different product requirements and service conditions. ASTM B928/B928M specifically covers qualifying high-magnesium aluminium alloy sheet and plate products for marine service, including specified 5083 H321 material.

Available Sizes of 5083 H321 Aluminium Sheets & Plates

5083 H321 Aluminium Sheet and Plate dimensions vary according to thickness, mill capability and available stock. The material requirement should therefore specify the required thickness, width and length rather than relying only on the alloy designation.

One established H321 stock range published by Righton & Blackburns includes:

Published Plate Size Published Thickness Range
4000 × 2000 mm 3.0 mm to 25.0 mm
6000 × 2000 mm 3.0 mm to 40.0 mm

These are published stock dimensions from that supplier and should not be interpreted as a universal size range for all 5083 H321 suppliers. Other producers and stockholders publish different dimensions depending on their rolling capability and inventory.

For a quotation, please provide:

  • Required thickness
  • Required width
  • Required length
  • Sheet or plate requirement
  • 5083 H321 temper
  • Applicable material standard
  • Quantity required
  • Required material certification
  • Inspection or classification requirements, if applicable
  • Cut-to-size requirement

Standard Specifications for 5083 H321 Aluminium Sheets & Plates

Standard / Designation Application
ASTM B209 Aluminium and aluminium-alloy sheet and plate
ASME SB209 ASME adoption of ASTM B209 for applicable aluminium sheet and plate requirements
ASTM B928 / B928M High-magnesium aluminium-alloy sheet and plate for marine service and similar environments
EN 485-2 Mechanical property requirements for aluminium and aluminium alloy sheet and plate
EN 573-3 Chemical composition and designation of wrought aluminium alloys
EN AW-5083 European alloy designation
UNS A95083 UNS designation for Aluminium Alloy 5083

Aluminium 5083 H321 Equivalent Grades

Designation System Grade / Designation
European EN AW-5083
UNS A95083
WNr. 3.3547
ISO / Alloy Designation AlMg4.5Mn
European Alloy Description AlMg4.5Mn0.7
Historical Designation GM41*

*Published sources list GM41 and the other designations in connection with Alloy 5083 but also caution that listed designations may not always represent direct one-to-one equivalents. The required material specification should therefore govern any substitution.

Chemical Composition of Aluminium 5083 H321 Sheets & Plates

The chemical composition of 5083 H321 is based on Aluminium Alloy 5083. The H321 temper does not change the alloy's specified chemical composition.

Element Composition
Aluminium (Al) Balance
Magnesium (Mg) 4.00–4.90%
Manganese (Mn) 0.40–1.00%
Chromium (Cr) 0.05–0.25%
Iron (Fe) 0.40% max
Silicon (Si) 0.40% max
Copper (Cu) 0.10% max
Zinc (Zn) 0.25% max
Titanium (Ti) 0.15% max
Other, Each 0.05% max
Other, Total 0.15% max

These composition limits are consistently published for Alloy 5083 in sources based on EN 573-3 and Aluminium Association data.

Mechanical Properties of 5083 H321 Aluminium Sheets & Plates

Thickness Range Tensile Strength 0.2% Yield Strength Minimum Elongation
Over 3.20 mm to 5.00 mm 305–385 MPa 215 MPa min 10%
Over 5.00 mm to 12.50 mm 305–385 MPa 215 MPa min 12%
Over 12.50 mm to 40.00 mm 305–385 MPa 215 MPa min 10%*
Over 40.00 mm to 80.00 mm 285–385 MPa 200 MPa min 10%*

5083 H321 Marine Grade Aluminium Plates

5083 H321 Aluminium Plates are widely specified for shipbuilding and marine applications. Published supplier data identifies 5083 H321 as a marine-grade aluminium alloy and lists applications involving shipbuilding and other structures operating in demanding service environments.

For marine procurement, the material requirement may include:

  • 5083 alloy
  • H321 temper
  • Required plate thickness
  • Plate width and length
  • ASTM B928/B928M or other specified standard
  • Material test certification
  • Classification or inspection requirements, where applicable

Applications of 5083 H321 Aluminium Sheets & Plates

5083 H321 Aluminium Sheets & Plates are used in applications where the alloy and H321 temper are specified for the component or structure.

Common applications include:

  • Shipbuilding
  • Marine structures
  • Vessel plating and structural sections
  • Rail cars
  • Vehicle bodies
  • Tip truck bodies
  • Pressure vessels
  • Mine skips and cages
  • LNG and cryogenic equipment
  • Transportation equipment
  • Welded aluminium structures

5083 H321 Aluminium Sheets & Plates Supplier & Stockist in India

As a supplier and stockist of 5083 H321 Aluminium Sheets & Plates in India, we handle enquiries based on the exact material and dimensional requirement.

To request a quotation, provide:

  • Product: Aluminium Sheet or Plate
  • Alloy: 5083
  • Temper: H321
  • Thickness
  • Width
  • Length
  • Quantity
  • Applicable standard
  • Material test certificate requirement
  • Classification or inspection requirement, if applicable

Providing the complete specification helps ensure that the quotation is prepared for the correct 5083 H321 Aluminium Sheet or Plate rather than a generic 5083 product or a different temper.



Related 5083 Aluminium Grades