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

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: