Marine grade · 5xxx series

5052 Aluminum Coil for Marine Structures and Tanks

5052 in H116/H321 tempers for hull, deck and tank work. 0.5–4 mm coil supplied cut-to-size with EN 10204 3.1 MTC per batch.

2.68 g/cm³230 MPa0.5–4 mm2,650 mm wide

Product views

5052 mill-finish coils, yard stock, packing and tank applications.

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5052 coil view 1
5052 coil view 1
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5052 coil view 2
5052 coil view 2
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5052 coil detail 1
5052 coil detail 1
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5052 coil detail 2
5052 coil detail 2
Density2.68g/cm³ · ≈1/3 of steel
Tensile230MPa · H32 min
Thickness0.5–4mm coil
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.

Marine sheet default
H32

The standard temper for marine sheet, panelling and formed tanks.

  • 230 MPa tensile / 160 MPa proof min
  • Very good formability
  • Excellent fatigue resistance
H34

Higher-strength sheet for panels and small craft hulls.

  • 260 MPa tensile / 195 MPa proof min
  • Used in small boats
  • Good weldability
O

Fully annealed for deep drawing and complex forming.

  • 170–230 MPa tensile
  • Deep-drawn tanks and ducts
  • High ductility

Where 5052 coil is used on board

5052 coil thickness starts at 0.5 mm; heavier sections carry primary loads.

Continuous tank production

Coil-fed lines produce tank barrels, cones and heads in volume.

0.5–3 mm

Ducting coil

Slit coil is formed into spiral ducting and ventilation components.

0.5–1.5 mm

Panel & ceiling coil

Prepainted or mill-finish coil for ceiling and wall panel systems.

0.6–1.2 mm

Tank liner series

Consistent 5052 coil lots support series-built tank liners.

0.8–2 mm

Why 5052 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
<0.7 μm/a
Xiamen splash zone
0.48 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.

5052 coil with heat and lot marking
5052 coil with heat and lot marking — traceable to the mill certificate.

5052 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
O170–23065–120≥20Deep drawing, complex forming
H32230–280≥160≥12Fuel tanks, panelling, ducts
H34260–300≥195≥10Small craft hulls, panels
H36275–320≥220≥8Stiffeners, reinforcement

5052 is the alloy of choice for marine sheet work where moderate strength and high formability are required.

5052 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 5052 coil

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

Slit to width

Coil slit to your exact width, edge-dressed and recoiled for continuous forming lines.

Slitting

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 5052 used for on boats?

Fuel and water tanks, panelling, ducting, small craft hulls and anywhere thin, formable sheet is needed.

Which temper is best for marine tanks?

H32 is the default. H34 when a little extra strength is needed. O temper for deep-drawn tanks.

Can 5052 be used for hull plating?

Only on very small craft and non-primary structure. For primary hull plating, use 5083 or 5086.

What filler wire should I use?

ER5356 is the standard choice for 5052. ER4043 is sometimes used for lower-strength joints.

What certificate comes with each order?

EN 10204 3.1 MTC per batch. DNV and other 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.

Is 5052 corrosion resistant in salt water?

Yes — very good in atmospheric and splash zones. Not recommended for continuous immersion in primary structure.

Can you supply cut-to-size 5052 sheet?

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

Need a 5052 marine coil 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 – 4 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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