5083 Aluminum Plate for Oil Tanker Body|H111, H321 Temper

5083 aluminum plate is the standard material choice for tanker body construction. It belongs to the Al-Mg alloy series — non-heat-treatable, work-hardened, and inherently resistant to corrosion without surface coating. For tanker fabricators, this combination of properties is practical: the plate welds cleanly, holds its strength in the weld zone, and resists the fuels, chemicals, and road environments it will be exposed to throughout its service life.

The alloy contains 4.0–4.9% magnesium together with small additions of manganese and chromium. This composition produces a stable oxide layer that protects against gasoline, diesel, ethanol blends, de-icing salts, and humid or marine atmospheres. In tanker applications, that means consistent performance over years of loading cycles without the perforation or weld-zone degradation that affects lower-grade aluminum.

5083 plate also meets the structural demands of tanker design. It carries sufficient tensile strength for pressure-bearing walls and baffles, forms predictably on standard equipment, and reduces vehicle tare weight compared to steel — directly improving payload capacity and fuel efficiency on every run.

Size of 5083 aluminum plates for tanker body

 Temper of 5083 tanker plate

• 5083-H111 → Tank shell / cylinder body

• 5083-O → Tank heads / bulkheads / baffles (easy forming)

• 5083-H321 / H116 → High corrosion / high stress areas

Standard of 5083 aluminum plate

• EN 14286

• ASTM B209

• GB/T 3880

• DB45/T 1890

Key Properties of 5083 Aluminum Plate for Tanker Bodies

Corrosion Resistance
5083's Al-Mg composition — with 4.0–4.9% magnesium plus manganese and chromium — forms a stable oxide layer that requires no additional coating. The alloy resists gasoline, diesel, ethanol blends, de-icing salts, and prolonged exposure to humid or marine environments. It also shows strong resistance to stress corrosion cracking (SCC), a common failure mode in pressurized tank structures. In field comparisons, 5083 tanker bodies typically outlast carbon steel by 5–10 years with lower maintenance intervention.

Weldability
5083 plate welds consistently with both MIG and TIG processes. Post-weld strength is retained at ≥85% of base material, which is critical for tank shell seams and baffle joints that carry dynamic loads in service. H111 temper is the standard for tank body plates; O temper is used for heads and baffles where deeper forming is required.

Mechanical Strength
Tensile strength ranges from 270 to 345 MPa with yield strength between 120 and 260 MPa depending on temper. This gives 5083 plate sufficient structural capacity for pressure-bearing walls, baffles, and manhole surrounds without requiring additional reinforcement in standard tanker designs.

Weight and Payload
At approximately 2.66 g/cm³ — roughly one-third the density of steel — 5083 plate reduces finished tank weight by over 4 tons compared to a steel equivalent. This directly increases usable payload capacity by 18–35% per load, which has a measurable impact on operating economics over the vehicle's service life.

Formability
5083 plate bends, rolls, stamps, and cuts on standard fabrication equipment without cracking or springback issues. Wide-format plates reduce the number of weld seams in the finished tank, simplifying inspection and improving leak integrity. Surface finish is consistent enough for direct use without secondary treatment in most tanker applications.

Fatigue and Impact Performance
Tanker bodies experience continuous vibration, road shock, and liquid surge loads throughout their service life. 5083 maintains its mechanical properties under repeated loading cycles and performs reliably at low temperatures without brittle fracture — an important consideration for cold-climate fuel transport operations.

Looking for 5083 aluminum plate for your tanker project? Send us your specifications — thickness, width, temper, and quantity — and we'll respond within 24 hours.