High Strength 200- 260mm Super Thick Aluminum Alloy Plate
Key Performance Advantages
1) Lightweight Superiority
• Exceptional Strength-to-Weight Ratio
7XXX series (e.g., 7050) offers tensile strength up to 570MPa with density of only 2.8g/cm³ -
1.8× higher specific strength than Q345 steel, ideal for aerospace/military weight reduction.
• Structural Efficiency
Single thick plates eliminate multi-layer welding, avoiding joint weakening (e.g., 200mm 5083-H321
ship decks reduce fasteners by 50%).
2) Environmental Resistance
• Extreme Temperature Stability
5XXX series (e.g., 5083) maintains toughness at -196℃ (LNG storage) with no cold brittleness.
2XXX series (e.g., 2219) withstands short-term 300℃ exposure (rocket engine compartments).
• Corrosion Resistance
Natural corrosion rate <0.02mm/year (5083 in marine environments), eliminating protective coatings.
Nuclear-grade 5052 resists radiation oxidation with >40-year service life.
3) Manufacturing Benefits
• Machinability
6XXX series (6082-T6) achieves surface roughness Ra≤1.6μm with 1/3 the tool wear of steel.
• Weldability
2219 plates achieve 90% base metal strength using VPPA welding.
Key Applications
Aluminum Alloy Plates (200-260mm Thickness)
a) 2XXX Series (Aerospace)
Alloys: 2024-T851/2124-T851, 2219-T87
Thickness: 200-260mm
Properties: High strength (450-485MPa), fatigue resistance
Applications: Aircraft wing spars, missile launch platforms, rocket fuel tanks
b) 5XXX Series (Marine & Corrosion-Resistant)
Alloys: 5083-H321/5383-H321, 5052-H112
Thickness: 200-260mm
Properties: Excellent seawater corrosion resistance, cryogenic toughness
Applications: LNG storage tanks, icebreaker hulls, nuclear radiation shielding
c) 7XXX Series (Ultra-High Strength)
Alloys: 7050-T7451/7075-T651, 7085-T7651
Thickness: 200-260mm
Properties: Tensile strength up to 570MPa, ballistic protection
Applications: Military vehicle armor, aircraft landing gears, large airframe components
d) 6XXX Series (General Engineering)
Alloys: 6082-T6/6061-T651
Thickness: 200-240mm
Properties: Balanced strength/machinability (310MPa)
Applications: High-speed train bogies, CNC machine bases
Material Selection Comparison Table
| Application Scenario | Recommended Alloy | Key Advantages | Max Thickness |
| Aircraft Load-bearing Structures | 2124-T851 | Fatigue life >10^7 cycles | 250mm |
| Marine Corrosion Resistance | 5083-H321 | Weld corrosion rate <0.01mm/year | 260mm |
| Military Armor | 7050-T7451 | Resists API armor-piercing rounds | 250mm |
| Cryogenic Pressure Vessels | 5383-H321 | -196°C impact energy ≥27J | 260mm |
Key Selection Criteria
♦ Strength Priority: 7XXX series (e.g., 7050 for armor)
♦ Corrosion Priority: 5XXX series (e.g., 5083 for marine)
♦ Cost-Effective: 6XXX series (e.g., 6082 for structural parts)
We can produce 260mm thickness at most, this is our 5052 alloy sample below:
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High Strength 200- 260mm Super Thick Aluminum Alloy Plate Images
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