5059 5086 Marine Grade Aluminum Square Bars
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5059 5086 Marine Grade Aluminum Square Bars

The corrosiveness of water and salt water determines the need for special materials to be used in shipbuilding, offshore drilling platforms, etc. The 5000 series aluminum magnesium (Al Mg) alloys are highly suitable for the construction of navigation vessels and structures, as well as the machinery and components used in them .

Chalco 5059 aluminum square bar and 5086 aluminum square bar are manufactured in advanced factories using strict quality and environmental management systems with superior corrosion resistance, light weight, high strength to weight ratio, and compatibility with various manufacturing processe; passing marine grade CCS, DNV, NK, CCS, ABS, BV, LR, KR certifications. Welcome contact

marine grade certification

The specification of 5059 5086 marine grade aluminum square bars

Max. internal cutting circle diameter: 200mm

Square bar width (or side length) Allowable deviation in width or side length
10.00-18.00 土0.30
>18.00-25.00 ±0.35
>25.00-40.00 ±0.40
>40.00-50.00 ±0.45
>50.00-65.00 ±0.50
>65.00-80.00 ±0.70
>80.00-100.00 ±0.90
>100.00-120.00 ±1.0
>120.00-150.00 ±1.2
>150.00-180.00 ±1.4
>180.00-220.00 ±1.7
Square bar width (or side length) Allowable length deviations
≤2000 >2000-5000 >5000
10.00-100.00 +5 +7 +10
0 0 0
>100.00-200.00 +7 +9 +12
0 0 0
>200.00-220.00 +8 +11 +14
0 0 0
Square bar width (or side length) Permissible deviation of the rounded (or chamfered) corners of the square bar from the width (or edge length)
10.00-25.00 ≤1.5
>25.00-50.00 ≤2.0
>50.00-80.00 ≤3.0
>80.00-120.00 ≤3.0
>120.00-180.00 ≤4.0
>180.00-220.00 ≤5.0
Square bar width (or side length) Angular deviation corresponding to width (or side length)
10.00-100.00 ≤0.01×width
>100.00-180.00 ≤1.0
>180.00-220.00 ≤1.5
Square bar width (or side length) Bending of a square bar over any 300mm length h Curvature over the full length of the square bar (L m) h
10.00-80.00 ≤0.8 ≤2×L
>80.00-120.00 ≤1.0 ≤2×L
>120.00-220.00 ≤1.5 ≤3×L
Square bar width (or side length) Torque on any 1000mm length of square bar Twist on the full length of the square bar
10.00-30.00 ≤1 ≤3
>30.00-50.00 ≤1.5 ≤4
>50.00-120.00 ≤2 ≤5
>120.00-220.00 ≤3 ≤6

Chemical composition of 5059 5086 marine grade aluminum square bars

Element 5059 % 5086 %
Al Rest Rest
Mg 4.8-5.5 3.5-4.5
Mn 0.5-1.0 0.2-0.7
Cr 0.05-0.25 0.05-0.25
Zn 0.25-0.6 0.25
Cu 0.1 0.1
Ti 0.15-0.35 0.15-0.35
Si 0.25 0.4
Fe 0.4 0.5
Sn 0.2

Mechanical properties of 5059 5086 marine grade aluminum square bars

Alloy Temper Thickness mm Tensile Strength R MPa Specified non-proportional tensile strength Rp0.2 Mpa Elongation %
A50 mm A
5059 H112 ≤12.50 330 200 - 10
>12.5-50.00 330 200 10 -
5086 O ≤12.50 240-315 95 - 15
>12.50-200.00 240-315 95 18 -
H112 ≤12.50 240 95 - 12
>12.50-250.0 240 95 12 -

Advantages of Chalco marine grade aluminum bars Al 5059 5086

  • 5086 marine aluminum alloy combines lightweight properties with high strength, reducing hull dead weight while enhancing the ship's carrying capacity.
  • 5086 marine aluminum is easy to machine and shape, making it adaptable to various design and manufacturing requirements.
  • Both 5059 and 5086 marine aluminum alloys offer high strength, meeting structural requirements for projects subjected to heavy loads.
  • These alloys excel in corrosion resistance, especially against seawater and salt spray, making them ideal for marine applications.
  • Both 5059 and 5086 alloys exhibit good welding properties, allowing for strong welded joints comparable to the base material.
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Advantages of Chalco 5059 5086 marine grade aluminum square bars

Applications of Chalco 5059 5086 marine grade aluminum bars

  • Used for ship hull structural components, such as hull skeletons and wall panels, to meet strength and corrosion resistance requirements.
  • Applied in various ship equipment and components, including propellers, masts, escalators, hatch covers, deck equipment, and cargo cranes.
  • Utilized in marine engineering projects like marine platforms, buoys, pipelines, offshore platforms, and offshore wind power foundations.

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Applications of Chalco 5059 5086 marine grade aluminum square bars

Chalco other hot selling marine grade square bar products

Precautions for purchasing 5059 5086 marine grade aluminum square bars

Q. Is material certification required for the 5059 5086 aluminum alloy?

A. Yes, it's essential to ensure that the purchased aluminum alloy meets relevant standards and is accompanied by a qualified material certification certificate.

Q. How do I determine the right specifications for my project?

A. Choose specifications, sizes, and shapes that align with your project's specific needs and ship square bar manufacturing requirements.

Q. How can I find a reliabile supplier?

A. Opt for a reputable and experienced supplier with a track record of providing quality products at reasonable prices and ensuring timely delivery. Contact Chalco to start the happy cooperation.

Q. What should I check regarding the surface quality of the aluminum square bars?

A. Inspect the surface for smoothness and ensure there are no cracks, wear, oxidation, or other defects that may affect the quality.

Q. Are there any specific storage requirements for marine-grade aluminum square bars?

A. Yes, keep the aluminum square bars dry, avoiding exposure to moisture and protecting them from mechanical impact or other potential sources of damage.

Chalco can provide you the most comprehensive inventory of aluminum products and can also supply you customized products. Precise quotation will be provided within 24 hours.

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