2024 is one of the best known of the high strength aluminum alloys. With its high strength and excellent fatigue resistance, it is used to advantage on structures and parts where good strength-to-weight ratio is desired. It is readily machined to a high finish. It is readily formed in the annealed condition and may be subsequently heat treated. Arc or gas welding is generally not recommended, although this alloy may be spot, seam or flash welded. Since corrosion resistance is relatively low, 2024 is commonly used with an anodized finish or in clad form ("Alclad") with a thin surface layer of high purity aluminum. Applications: aircraft structural components, aircraft fittings, hardware, truck wheels and parts for the transportation industry.

2024-T351
Mill Finish Stenciled and Interleaved
AMS-QQ-A-250/4 ASTM B209
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506451004-497007206-aluminum-plate

Aluminum Plate - Series 2024-T351
506451004-497007206-aluminum-plate

Aluminum Plate - Series 2024-T351
506451004-497007206-aluminum-plate

Aluminum Plate - Series 2024-T351
506451004-497007206-aluminum-plate

Aluminum Plate - Series 2024-T351
506451004-497007206-aluminum-plate

Aluminum Plate - Series 2024-T351
Material N/A Aluminum
Shapeform N/A Plates
Series N/A 2024-T351
Grade N/A 2024
Preparation N/A Interleaved and Stenciled
Temper N/A T351
Finish N/A Mill
Thickness N/A 0.25 inches6.3500 mm N/A 0.313 inches7.9502 mm N/A 0.375 inches9.5250 mm N/A 0.500 inches12.7 mm N/A 0.625 inches15.875 mm
Size N/A 48.5 x 144.5
Width N/A 48.5
Length N/A 144.5
Sheet Weight per Unit Area N/A 3.6 lbs/ft²17.5752 kg/m² N/A 4.507 lbs/ft²22.003174 kg/m² N/A 5.4 lbs/ft²26.3628 kg/m² N/A 7.200 lbs/ft²35.1504 kg/m² N/A 9.000 lbs/ft²43.938 kg/m²
Weight per Sheet N/A 175.21 lbs79.37013 kg N/A 219.36 lbs99.37008 kg N/A 262.81 lbs119.05293 kg N/A 350.41 lbs158.73573 kg N/A 438.02 lbs198.42306 kg
ASTM Specification N/A AMS 4101 AMS 4221 AMS-QQ-A-250/4 ASTM B209
Ultimate Strength N/A 68 ksi
Yield Strength N/A 47 ksi
Elongation percent in 2 inches N/A 20
Hardness Brinnel Number
N/A 120
Ultimate Shearing Strength N/A 41 ksi
Fatigue Endurance Limit1 N/A 20 ksi
Modulus of Elasticity2 N/A 10.6 x 102 ksi
Resistance to Corrosion - General3 N/A D
Stress Corrosion Cracking4 N/A C
Workability (Cold)5 N/A C
Mechinability N/A B
Brazeability6 N/A D
Gas Weldability7 N/A C
Arc Weldability8 N/A B
Resistance Spot and Seam Weldability9 N/A B
Applications N/A Truck wheels, screw machine products, aircraft structures
Density N/A 0.100 lbs/in³
Specific Gravity N/A 2.78
  • 1 Based on 500,000.000 cycles of completely reversed stress using the R. R. Moore-type of machine and specimen.
  • 2 Average of tension and compression moduli. Compression modulus is about 2 percent greater than tension modulus.
  • 3 Ratings A through E are relative ratings in decreasing order of merit, based on exposures to sodium chloride solution by intermittent spraying or immersion. Alloys with A and B ratings can be used in industrial and seacoast atmospheres without protection. Alloys with C, D and E ratings generally should be protected at least on faying surfaces.
  • 4 Stress-corrosion cracking ratings are based on service experience and on laboratory tests of specimens exposed to the 3.5% sodium chloride alternate immersion test.
  • 5 Ratings A through D for Workability (cold), and A through E for Machinability, are relative ratings in decreasing order of merit.
  • 6 Ratings A through D for Weldability and Brazeability are relative ratings.
  • 7 A = Generally weldable by all commercial procedures and methods.
    B = Weldable with special techniques or for specific applications that justify preliminary trials or testing to develop welding procedure and weld performance.
    C = Limited weldability because of crack sensitivity or loss in resistance to corrosion and mechanical properties.
  • 8 A = Generally weldable by all commercial procedures and methods.
    B = Weldable with special techniques or for specific applications that justify preliminary trials or testing to develop welding procedure and weld performance.
    C = Limited weldability because of crack sensitivity or loss in resistance to corrosion and mechanical properties.
  • 9 A = Generally weldable by all commercial procedures and methods.
    B = Weldable with special techniques or for specific applications that justify preliminary trials or testing to develop welding procedure and weld performance.
    C = Limited weldability because of crack sensitivity or loss in resistance to corrosion and mechanical properties.