Marine grade · 5xxx series

5182 Aluminum Sheet for Marine Structures and Tanks

5182 in H116/H321 tempers for hull, deck and tank work. 0.5–6 mm sheet supplied cut-to-size with EN 10204 3.1 MTC per batch.

2.65 g/cm³280 MPa0.5–6 mm2,650 mm wide

Product views

5182 mill-finish sheets, yard stock, packing and tank applications.

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5182 sheet view 1
5182 sheet view 1
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5182 sheet view 2
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5182 sheet detail 1
5182 sheet detail 1
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5182 sheet detail 2
5182 sheet detail 2
Density2.65g/cm³ · ≈1/3 of steel
Tensile280MPa · H111 min
Thickness0.5–6mm sheet
Width2,650mm · 3,000 on request
Length12,000mm cut-to-length

Other 5xxx grades we supply

Same marine family, different balance of strength, formability and service temperature.

Which temper do you need?

Pick the stabilised temper for the exposure and forming requirements of each part.

Sheet & coil default
H111

Standard temper for tank bodies, stiffeners and sheet metal parts.

  • 280 MPa tensile / 130 MPa proof min
  • Very good formability
  • Used in tank truck bodies
H32 / H34

Strain-hardened tempers for higher-strength panels.

  • Higher strength than H111
  • Used in stiffeners and brackets
  • Good fatigue resistance
O

Annealed for deep drawing and complex forming.

  • High ductility
  • Deep-drawn tank heads
  • Formed components

Where 5182 sheet is used on board

5182 sheet thickness starts at 0.5 mm; heavier sections carry primary loads.

Tank truck & tanker bodies

5182-H111 sheet is widely used for welded tank barrels and stiffeners.

1.5–6 mm

Marine tank panels

Sheet panels for fuel, water and ballast tanks on workboats and ferries.

2–6 mm

Stiffeners & brackets

Formed stiffeners, brackets and cleats inside tanks and engine rooms.

2–5 mm

Tank heads & baffles

Formed heads, baffles and manways in tank production.

1.5–4 mm

Why 5182 wins in marine service

Four numbers that decide the specification.

15–20%lighter than steel

Same section modulus, lower center of gravity and fuel burn.

ER5356matched weld filler

Compatible filler chemistry keeps joints corrosion-resistant without post-weld heat treatment.

EN 10204 3.1per-batch MTC

Mill test certificate issued by the producing mill and countersigned by our QC team.

65 °Cservice ceiling

For long-term service above this, 5454 is the usual alternative.

Real-world corrosion resistance

8-year atmospheric and splash-zone exposure data on Al–Mg 5xxx alloys.

Qingdao atmosphere
<0.6 μm/a
Xiamen splash zone
0.46 mm max pit
Qingdao atmosphereXiamen splash zone
  • Stabilised tempers: H116/H321 keep intergranular and exfoliation corrosion low in continuous immersion and splash zones.
  • Lot-release testing: ASTM G66 ASSET and G67 NAMLT confirm resistance to sensitisation before shipment.
  • Design matters: isolate aluminum from dissimilar metals, avoid standing water in crevices, and stay below the 65 °C long-term ceiling.

Actual rates depend on local water chemistry, design and maintenance.

5182 sheet with heat and lot marking
5182 sheet with heat and lot marking — traceable to the mill certificate.

5182 mechanical properties

Minimum / typical values per ASTM B209 / B928. Certified values are shown on the EN 10204 3.1 MTC supplied with each batch.

TemperTensile Rm (MPa)Proof Rp0.2 (MPa)Elongation A50 (%)Typical marine use
O255–315100–150≥18Deep drawing, tank heads
H111280 min≥130≥12Tank bodies, stiffeners, panels
H32305–360≥170≥10Stiffeners, brackets, panels
H34340–390≥210≥8Higher-strength structural sheet

5182 is widely used for tank truck and marine tank bodies where formability and weldability are critical.

5182 against the rest of the 5xxx family

Every grade below we supply. Choose on strength, forming and service temperature — not on habit.

AlloyMg content (%)Tensile Rm (MPa)Proof Rp0.2 (MPa)Marine corrosionBest used for
50834.0–4.9305–385≥215Excellent — G66/G67Hull, deck, LNG secondary barrier
50863.5–4.5275–345≥195ExcellentHull plating, fast craft, pressure vessels
57542.6–3.6215–275≥130Very goodSuperstructures, tanks, general fabrication
50522.2–2.8215–265≥160Very goodFuel tanks, panelling, ducting
54542.4–3.0240–290≥180Excellent at temperatureWarm service above 65 °C, chemical carriers
51824.0–5.0275–350≥130GoodTank bodies, stiffeners, reinforcement

Typical values for common marine tempers. Higher-magnesium grades give more strength but were designed for different forming limits — confirm the temper before substituting.

Marine standards & classification

Certification and testing that shipyard buyers actually ask for.

ASTM B209Aluminum sheet & plate
EN 10204 3.1Mill test certificate
EN 485-2Dimensions & tolerances
DNV 2-2 A103Aluminum alloys for marine use

How we supply 5182 sheet

From producing mill to yard, with independent QC at each step.

Cut-to-length

Plasma / saw cut to your nesting. Length up to 12,000 mm; width up to 2,650 mm.

CTL

Sea-export packing

Wooden stillage, edge protection, waterproof film. Steel strapping for heavy plate.

Export

Per-batch certificate

EN 10204 3.1 MTC issued by the producing mill and countersigned by our QC team.

3.1 MTC

Frequently asked questions

What is 5182 used for in marine?

Tank bodies, stiffeners, brackets, panels and formed parts where good weldability and formability are needed.

Which temper is standard for 5182 sheet?

H111 for most tank and panel work. H32/H34 for higher-strength stiffeners.

Is 5182 suitable for fuel tanks?

Yes, it is commonly used for marine fuel and water tanks, including tank truck and tanker bodies.

What filler wire should I use?

ER5356 is standard; ER5183 can be used where higher joint strength is needed.

What certificate comes with each order?

EN 10204 3.1 MTC per batch, with classification society certification available on request.

What thickness range can you supply?

Sheet 0.5–6 mm, plate 3–50 mm, coil slit to width.

How does 5182 compare to 5052?

5182 has higher magnesium content, slightly higher strength and similar formability. It is often preferred for tank bodies.

Can you supply cut-to-size 5182 sheet?

Yes — send dimensions or a nesting file for a quote.

Need a 5182 marine sheet quotation?

Send grade, temper, thickness, width and quantity — we quote against current mill availability.

Request a quoteEmail info@aymetals.com
Grades supplied5083 · 5086 · 5754 · 5052 · 5454 · 5182
Thickness range0.5 – 6 mm
CertificateEN 10204 3.1 per batch
Cut-to-lengthUp to 12,000 mm

Delin Aluminum has supplied 5xxx marine plate and sheet for over 10 years. Material comes from mills holding DNV approval, with other major classification societies available on request.

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