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 thicknessat most, this is our 5052 alloy sample below:

Qingdao Jero steel company is a professional raw material integrated supplier, located in the beautiful costal city, Qingdao,

mainly product is steel material and Aluminum alloy sheet/coil.

We own a very comfortable work environment, and humanized management system, we hope that a job can not only bring

salary, ability, friendship, experience, but also bring happiness, passion, and the sense of achievement.

• We guarantee the product quality by our inspection team, professional equipment, that is the key point for getting a stable

 and sustainable development.

• We have strictly constraint for every step, such as production, package, inspection, delivery etc.

• Besides, we have excellent sales team, each member have over 4 years raw material export experience, they can judge the

 market changes to a certain extent and provide some reasonable advice for customers.

A stable customer can bring us good reputation and constantly economic benefit. For the past years, relying on a perfect quality

management system and a rigorous service attitude, we get a trusted brand image in the minds of customers.