2xxx Series Fatigue Resistance 2014 Aluminum Alloy Plate For Aircraft Skin

2xxx Series 2014 Aluminum Alloy Sheet For Aerospace Industry

2014 alloy is primarily used in aerospace/military applications where high strength is critical.

For commercial uses, modified 2XXX/7XXX alloys are often preferred due to better corrosion

resistance.

Properties of 2014 Aluminum Alloy

Composition:

Primarily composed of copper (3.9–5.0%), magnesium (0.2–0.8%), and manganese (0.4–1.2%).

Strengthened by precipitation hardening (θ' and S phases).

Mechanical Properties:

Tensile strength: ≥425 MPa (T6 temper)

Yield strength: ≥370 MPa

Elongation: 3–10% (varies with temper)

Corrosion Resistance:

Poor due to high copper content; requires alclad (pure aluminum cladding) or coatings for skin

applications.

Workability:

Good hot workability but challenging for cold working (annealing may be needed).

Advantages for Aircraft Skin

♦ High Strength-to-Weight Ratio:

   Comparable to steel, reducing structural weight and improving fuel efficiency.

♦ Fatigue Resistance:

   Suitable for cyclic aerodynamic loads during flight.

♦ Formability:

  Compatible with riveting, welding (with specialized techniques), and shaping (e.g., curved

   skin panels).

♦ Cost-Effectiveness:

   More economical than advanced alloys like 2024 or 7075, ideal for non-critical structures.

Common Tempers

Temper Process Characteristics

T4 Solution heat treated + naturally aged High strength + good ductility

T6 Solution heat treated + artificially aged Maximum strength/hardness

O Annealed Soft state for forming

Typical Thicknesses

Aerospace: 1.5-50 mm

Machinery: 5-30 mm

Transportation: 2-20 mm

Tooling: 10-100 mm

Limitations

⚠ Poor weldability (requires special techniques)

⚠ Low corrosion resistance (needs coating)

⚠ Fast work hardening (may require annealing)

our company advantages

Technological & Production Strengths:

♦ R&D Capabilities: Own a national-level corporate technology center and contributes to industry

standards.

♦ Production Scale: We had an annual capacity exceeding 1 million tons of aluminium large-scale 

rolling mills.

♦ Production Ability: We can produce the great Aluminum material for automobile, railway transportation,

marine, aerospace etc fields, and obtained the relevant certification.

Our factory own the world advanced equipments, include: