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5086 Aluminum Sheet Prices
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5086 aluminum sheet is a high-magnesium 5000 series aluminum alloy known for its excellent corrosion resistance, especially in marine environments. It is widely used in shipbuilding, offshore structures, pressure vessels, and transportation industries where durability and seawater resistance are critical.
When discussing “5086 aluminum sheet prices,” the material cost is mainly influenced by alloy composition, mechanical strength level, and its position within the 5000 series performance range.
1. Chemical Composition of 5086 Aluminum Alloy
5086 is an aluminum-magnesium alloy with higher magnesium content than many standard 5xxx alloys.
Typical composition:
| Element | Content |
|---|---|
| Aluminum (Al) | Balance |
| Magnesium (Mg) | ~3.5% – 4.5% |
| Manganese (Mn) | ~0.2% – 0.7% |
| Chromium (Cr) | ~0.05% – 0.25% |
| Iron (Fe) | ≤0.5% |
| Silicon (Si) | ≤0.4% |
The relatively high magnesium content is the key factor behind its strength and corrosion resistance.
2. Key Performance Characteristics of 5086 Aluminum Sheet
Excellent corrosion resistance
5086 performs extremely well in:
- Seawater environments
- Marine atmospheres
- Chemical exposure conditions
Medium to high strength
- Stronger than 5052 and 5754 in many conditions
- Suitable for structural applications
Good weldability
- Excellent performance in MIG and TIG welding
- Retains good strength after welding
Good formability
- Suitable for bending and sheet fabrication
- Not as formable as 5052 but stronger
3. Mechanical Properties Overview
| Property | Performance |
|---|---|
| Tensile Strength | Medium-high |
| Yield Strength | Higher than 5052 |
| Corrosion Resistance | Excellent |
| Weldability | Excellent |
| Machinability | Good |
| Fatigue Resistance | Strong |
4. 5086 vs Other 5000 Series Aluminum Alloys
Comparison with 5052 Aluminum
| Property | 5052 | 5086 |
|---|---|---|
| Magnesium Content | ~2.2%–2.8% | ~3.5%–4.5% |
| Strength | Medium | Higher |
| Corrosion Resistance | Excellent | Excellent (better marine performance) |
| Formability | Better | Slightly lower |
| Main Use | General sheet metal | Marine structures |
Comparison with 5083 Aluminum
| Property | 5083 | 5086 |
|---|---|---|
| Strength | Very high | High |
| Marine Performance | Excellent | Excellent |
| Weldability | Excellent | Excellent |
| Application Level | Heavy offshore structures | Marine and transport structures |
| Cost Level | Higher | Slightly lower or similar |
5083 and 5086 are often considered closely related marine-grade alloys.
Comparison with 5754 Aluminum
| Property | 5754 | 5086 |
|---|---|---|
| Strength | Medium | Higher |
| Formability | Excellent | Good |
| Marine Resistance | Good | Better |
| Application | Automotive panels | Marine and structural use |
5. Why 5086 Aluminum Sheet Price Is Higher Than General 5000 Series
The cost of 5086 aluminum sheet is influenced by:
- Higher magnesium content (increased alloying cost)
- Better marine-grade corrosion resistance
- Higher structural strength requirements
- More demanding production control
- Specialized industrial applications
Compared with 5052 or 5754, 5086 is positioned as a marine structural-grade alloy, which naturally increases its market value.
6. Common Applications of 5086 Aluminum Sheet
Marine Industry
- Ship hull structures
- Boat decks and side panels
- Offshore platforms
Transportation Industry
- Tank trucks
- Rail transportation structures
- Heavy-duty vehicle panels
Industrial Structures
- Pressure vessels (non-heat-treated)
- Chemical storage systems
- Corrosion-resistant structural components
Construction Engineering
- Coastal building structures
- Exterior panels in humid environments
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