Aluminium sheet 5754 for fuel oil tank
Aluminium sheet 5754 is a proven material choice for fuel oil tanks and related fluid containment structures where corrosion resistance, weldability, and dependable forming performance matter more than extreme strength. As an Al-Mg (5xxx series) alloy, 5754 offers a balanced combination of lightweight design, good mechanical properties, and excellent resistance to marine and industrial atmospheres, making it widely used across transportation, equipment, and storage applications.
For customers specifying sheet for fuel oil tank fabrication, 5754 stands out as a practical, fabrication-friendly alloy that supports stable production, repeatable weld quality, and long service life with reduced maintenance risk.
Why 5754 Works Well for Fuel Oil Tanks
Fuel oil tanks face a demanding mix of conditions: vibration and dynamic load (especially in vehicles), condensation and water contamination, salt-laden environments, and fabrication requirements like bending, rolling, and welding. Aluminium 5754 addresses these needs through a set of material traits that align well with tank manufacturing.
Features at a Glance
| Feature | What it Means for a Fuel Oil Tank |
|---|---|
| Strong corrosion resistance (Al-Mg alloy) | Better durability in humid, coastal, and industrial atmospheres; reduced pitting risk compared with many structural metals |
| Excellent weldability | Supports MIG/TIG welding with stable bead quality and lower hot-cracking tendency |
| Good formability | Suitable for rolling shells, pressing end caps, flanging, and bending without excessive cracking |
| Medium strength with good toughness | Handles vibration and impact better than many higher-strength but less ductile options |
| Lightweight | Helps reduce total system weight, improve fuel economy, and ease handling during assembly |
| Good surface quality | Works well for painted, coated, or bare applications depending on design intent |
Chemical Composition (Typical Limits)
5754 is primarily aluminium alloyed with magnesium. The controlled Mg content provides corrosion resistance and solid solution strengthening, while minor elements support processing stability.
| Element | Typical Limit (wt. %) |
|---|---|
| Mg | 2.6–3.6 |
| Mn | ≤ 0.50 |
| Cr | ≤ 0.30 |
| Si | ≤ 0.40 |
| Fe | ≤ 0.40 |
| Cu | ≤ 0.10 |
| Zn | ≤ 0.20 |
| Ti | ≤ 0.15 |
| Others (each) | ≤ 0.05 |
| Others (total) | ≤ 0.15 |
| Al | Balance |
Note: Limits may vary slightly by standard (EN/ASTM/JIS) and mill practice. Always confirm to the ordering standard and heat certificate.
Typical Technical Specifications for Sheet Supply
5754 is commonly supplied in non-heat-treatable tempers. For fuel oil tank forming and welding, H111 and H22/H24 are frequent choices depending on strength and forming needs.
| Item | Typical Options |
|---|---|
| Product form | Sheet, plate (cut-to-length), coil (slit or leveled) |
| Common tempers | O (annealed), H111, H22, H24 |
| Surface finish | Mill finish, one-side film, both-side film, brushed (upon request) |
| Edge | Slit edge, trimmed edge |
| Standards (typical) | EN 485 / EN 573, ASTM B209, equivalent regional standards |
| Joinability | MIG, TIG, resistance methods (process dependent) |
Numerical Properties (Practical Design Data)
Because 5754 is non-heat-treatable, properties are controlled mainly by cold work (H tempers) and thickness. Values below are typical ranges used for engineering reference; final values depend on thickness, temper, and applicable standard.
| Property | Typical Range / Value |
|---|---|
| Density | ~2.66 g/cm³ |
| Elastic modulus | ~69 GPa |
| Thermal conductivity | ~130–140 W/m·K |
| Electrical conductivity | ~30–35 %IACS (approx.) |
| Melting range | ~570–640 °C |
Typical Mechanical Properties (Sheet)
| Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|
| O | ~190–220 | ~70–100 | ~20–30 |
| H111 | ~200–240 | ~80–120 | ~18–28 |
| H22 | ~230–270 | ~130–170 | ~10–18 |
| H24 | ~250–300 | ~150–200 | ~8–15 |
Selection tip: use softer tempers when tight radii and deep forming dominate; use harder tempers when panel stiffness and dent resistance are priorities.
Performance Advantages in Fuel Oil Tank Fabrication
Corrosion Resistance in Real-World Service
5754 performs strongly in humid environments, road salt exposure, and marine air, which are common around vehicle underbodies, coastal equipment, and outdoor storage systems. The alloy's magnesium content helps it maintain protective oxide behavior. When paired with sensible design practices-drainage, avoiding crevices, and isolating dissimilar metals-5754 supports long operating life.
Welding Reliability and Production Efficiency
Fuel oil tanks often rely on continuous seam welding and attachment welds for brackets, nozzles, and reinforcements. 5754 is known for smooth weldability using standard aluminium welding methods. It also tolerates fabrication variability well, which can improve throughput in tank shops.
| Welding Aspect | Practical Guidance |
|---|---|
| Recommended processes | MIG (GMAW), TIG (GTAW) |
| Typical filler | 5xxx-series fillers (selection depends on service temperature and spec) |
| Heat-affected zone behavior | Strength reduction near weld is typical for 5xxx alloys; design accordingly |
| Cleanliness | Degrease and remove oxide before welding for porosity control |
Formability for Tank Geometry
Whether the tank is cylindrical, rectangular, or custom-formed, 5754 supports rolling, bending, and pressing with low cracking risk in appropriate tempers. This helps manufacturers reduce scrap and achieve consistent dimensional accuracy-especially useful for end caps, baffles, and stiffening features.
Common Applications Around Fuel Oil Systems
5754 sheet is not limited to the tank shell. It is frequently used across a system of parts where corrosion resistance and fabrication compatibility are valuable.
| Application Area | Typical Parts Made from 5754 Sheet |
|---|---|
| Fuel oil tanks (transport) | Tank shells, end heads, baffles, access covers |
| Industrial fuel storage | Lightweight tank panels, lids, internal partitions |
| Marine and offshore support | Auxiliary tanks, protective housings, splash-zone enclosures |
| Vehicle and equipment bodywork | Guard plates, shields, brackets, floor and side panels adjacent to tanks |
| Chemical-adjacent environments | Enclosures and panels where mild chemical exposure and humidity are present |
Temper and Thickness Recommendations (Practical Selection)
Different tank designs prioritize different outcomes: deep forming vs. stiffness, lightweight vs. dent resistance, high-volume welding vs. cosmetic finish. The table below provides a fast selection guide.
| Design Priority | Recommended Temper | Why It Fits ||---|---|| Maximum formability (tight bends, deep draws) | O or H111 | Higher ductility and safer bend radii || Balanced forming + better stiffness | H111 or H22 | Good compromise for shells and end caps || Higher dent resistance and panel rigidity | H22 or H24 | Higher strength, better resistance to handling damage || Complex assembly with extensive welding | H111 | More forgiving fabrication behavior |
Thickness selection is typically governed by volume, pressure/vacuum conditions, mounting method, impact protection, and regulatory requirements. Share drawings and operating conditions for an optimized recommendation.
Quality Options That Improve Tank Manufacturing
Purchasing sheet with the right supply details can reduce rework and improve assembly speed.
| Option | Customer Benefit |
|---|---|
| Protective film (one or both sides) | Reduces scratches during forming and handling |
| Controlled flatness / leveling | Helps sealing surfaces, improves fit-up for long weld seams |
| Consistent coil-to-coil properties | Stabilizes forming parameters, reduces setup time |
| Edge quality (trimmed) | Fewer edge cracks in forming and safer handling |
| Traceability (full MTC) | Simplifies audits and compliance documentation |
Aluminium sheet 5754 brings together the qualities fuel oil tank manufacturers care about most: corrosion resistance, clean weldability, and reliable forming. It supports both lightweight transportation tanks and robust industrial tank structures, offering flexible temper options to match your fabrication method and performance targets.
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