
Marine Plate 5083 
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ALUMINIUM HEAVY GAUGE SHEET PRODUCTS ARE MANUFACTURED TO SUIT THE REQUIREMENTS OF DISTRIBUTORS, STOCKISTS, AND SELECTED END USERS.
Custom Lengths Available Upon Request
- *MILL RUN ONLY
- IN STOCK
- NO STOCK – Contact Local UA branch for availability


Aluminium 5083 is known for exceptional performance in extreme environments. 5083 is highly resistant to attack by both seawater and industrial chemical environments.
Alloy 5083 also retains exceptional strength after welding. It has the highest strength of the non-heat treatable alloys but is not recommended for use in temperatures in excess of 65°C.
Alloy 5083 is typically used in:
Shipbuilding
Rail cars
Vehicle bodies
Tip truck bodies
Mine skips and cages
Pressure vessels
Mechanical Properties shown are for 0/H111 temper
TEMPER TYPES
The most common tempers for 5083 aluminium are:
O – Soft
H111 – Some work hardening imparted by shaping processes but less than required for H11 temper
H32 – Work hardened by rolling then stabilised by low-temperature heat treatment to quarter hard
Generic Physical Properties | |
Physical Property | Value |
Density | 2.65 g/cm3 |
Melting Point | 570 °C |
Thermal Expansion | 25 x 10-6 /K |
Modulus of Elasticity | 72 GPa |
Thermal Conductivity | 121 W/m.K |
Electrical Resistivity | 0.058 x10-6 Ω .m |
Mechanical Properties | |
Sheet – 0.2mm to 6.30mm | BS EN 485-2:2008 |
Mechanical Property | Value |
Proof Stress | 125 Min MPa |
Tensile Strength | 275 – 350 MPa |
Hardness Brinell | 75 HB |
Mechanical Properties | |
Plate – 6.3mm to 80mm | BS EN 485-2:2008 |
Mechanical Property | Value |
Proof Stress | 115 Min MPa |
Tensile Strength | 270 – 345 MPa |
Hardness Brinell | 75 HB |
Mechanical Properties | |
Sheet & Treadplate – 0.2mm to 6.00mm | BS EN 485-2:2008 |
Mechanical Property | Value |
Proof Stress | 110 Min MPa |
Tensile Strength | 260 Min MPa |
Hardness Brinell | 70 HB |
Elongation A | 12 Min % |
The properties above are for material in the Soft O/H111 condition
WELDABILITY
When welding 5083 to itself or another alloy from the same sub-group, the recommended filler metal is 5183. Other suitable fillers are 5356 and 5556.
Weldability – Gas: Average
Weldability – Arc: Excellent
Weldability – Resistance: Excellent
Brazability: Poor
Solderability: Poor
Workability – Cold: Average
Machinability: Poor
Marine Plate 5083 - Mill Finish
Part Number | T
mm |
W
mm |
L
mm |
Alloy/
Temper |
Finish | Nominal
Mass/Piece |
QLD | NSW | VIC | SA | TAS | WA | NT |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
S3.012002400MI2FQ | 3.0 | 1200 | 2400 | 5083H321/116 | Mill Finish | 23.414 | |||||||
S3.012006100MI2FQ | 3.0 | 1200 | 6100 | 5083H321/116 | Mill Finish | 59.511 | |||||||
S3.015256100MI2FQ | 3.0 | 1525 | 6100 | 5083H321/116 | Mill Finish | 75.629 | |||||||
S3.018306100MI2FQ | 3.0 | 1830 | 6100 | 5083H321/116 | Mill Finish | 90.755 | |||||||
S4.012002400MI2FQ | 4.0 | 1200 | 2400 | 5083-H321/116 | Mill Finish | 31.22 | |||||||
S4.012006100MI2FQ | 4.0 | 1200 | 6100 | 5083H321/116 | Mill Finish | 79.348 | |||||||
S4.015256100MI2FQ | 4.0 | 1525 | 6100 | 5083-H321/116 | Mill Finish | 100.83 | |||||||
S4.018306100MI2FQ | 4.0 | 1830 | 6100 | 5083-H321/116 | Mill Finish | 121.00 | |||||||
S5.012002400MI2FQ | 5.0 | 1200 | 2400 | 5083-H321/116 | Mill Finish | 39.024 | |||||||
S5.015256100MI2FQ | 5.0 | 1525 | 6100 | 5083-H321/116 | Mill Finish | 123.72 | |||||||
S5.018306100MI2FQ | 5.0 | 1830 | 6100 | 5083-H321/116 | Mill Finish | 148.467 | |||||||
P6.012002400MI2FQ | 6.0 | 1200 | 2400 | 5083H321/116 | Mill Finish | 45.964 | |||||||
P6.015256100MI2FQ | 6.0 | 1525 | 6100 | 5083H321/116 | Mill Finish | 148.467 | |||||||
P6.018306100MI2FQ | 6.0 | 1830 | 6100 | 5083H321/116 | Mill Finish | 178.161 | |||||||
P6.019806100MI2FQ | 6.0 | 1980 | 6100 | 5083H321/116 | Mill Finish | 192.764 | |||||||
P6.022009000MI2FQ | 6.0 | 2200 | 9000 | 5083H321/116 | Mill Finish | 316.00 | |||||||
P8.012002400MI2FQ | 8.0 | 1200 | 2400 | 5083-H321/116 | Mill Finish | 62.438 | |||||||
P8.018306100MI2FQ | 8.0 | 1830 | 6100 | 5083-H321/116 | Mill Finish | 237.548 | |||||||
P8.019806100MI2FQ | 8.0 | 1980 | 6100 | 5083-H321/116 | Mill Finish | 257.019 | |||||||
P8.019816100MI2FQ | 8.0 | 1981 | 6100 | 5083-H321/116 | Mill Finish | 261.98 | |||||||
P10.012002400MI2FQ | 10.0 | 1200 | 2400 | 5083-H321/116 | Mill Finish | 78.048 | |||||||
P10.012006100MI2FQ | 10.0 | 1200 | 6100 | 5083-H321/116 | Mill Finish | 194.712 | |||||||
P10.018306100MI2FQ | 10.0 | 1830 | 6100 | 5083-H321/116 | Mill Finish | 296.935 | |||||||
P12.012002400MI2FQ | 12.0 | 1200 | 2400 | 5083-H321/116 | Mill Finish | 93.657 | |||||||
P16.012002400MI2FQ | 16.0 | 1200 | 2400 | 5083-H321/116 | Mill Finish | 124.88 | |||||||
P20.012002400MI2FQ | 20.0 | 1200 | 2400 | 5083-H321/116 | Mill Finish | 156.10 | |||||||
P25.012002400MI2FQ | 25.0 | 1200 | 2400 | 5083-H321/116 | Mill Finish | 195.12 | |||||||
P32.012002400MI2FQ | 32.0 | 1200 | 2400 | 5083-H321/116 | Mill Finish | 249.70 | |||||||
P40.012002400MI2FQ | 40.0 | 1200 | 2400 | 5083-H321/116 | Mill Finish | 306.432 |

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