7050 Aluminum Plate

Alloy 7050 aluminum plates are the principal choice for aerospace applications, especially in the 3-6 inch thickness range. It exhibits better toughness/corrosion resistance characteristics than the older, more established alloy 7075. Since it is less quench sensitive than most other aerospace alloys, this alloy maintains its strength properties in thicker sections while retaining good stress corrosion cracking resistance and fracture toughness levels. AMS 4050 is commonly associated with 7050, though various manufacturers require their own specifications.

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SKU Description DFARS Temper Thickness Width Length Specification
Sku: 28236 Description: AFP 7050 T7451 EAC MS1004 .5000 x 48.5000 x 48.50" DFARS: No Temper: T7451 Thickness: 0.5000 Width: 48.50" Length: 144.50" Specification: EAC MS1004 EAC MS1005
Sku: 46578 Description: AFP 7050 T7451 HR MF BAMS 516-003 2.0000 x 48.5000 x 144.5 DFARS: Yes Temper: T7451 Thickness: 2.0000 Width: 48.5 Length: 144.5 Specification: BAMS 516-003 BSS 7055
Sku: 94119 Description: DFARS: No Temper: T651 Thickness: 1.7500 Width: 48.5 Length: 144.5 Specification: BAC 5439 BSS7055
Sku: 31967 Description: 7050T7451 ALUM PLT 1.750 DFARS: No Temper: T7451 Thickness: 1.7500 Width: 48.5 Length: 144.5 IN Specification: AMS4050 AMS-STD-2154
Sku: 11717 Description: AFP 7050 T7451 AMS 4050 1.0000 x 48.5000 x 48.5 DFARS: No Temper: T7451 Thickness: 1.0000 Width: 48.5 Length: 144.5 Specification: AMS4050 AMS-STD-2154
Sku: 32319 Description: 7050T7451 ALUM PLT MS1004 4.00 DFARS: No Temper: T7451 Thickness: 4.0000 Width: 48 Length: 144 IN Specification: EAC MS1004 EAC MS1005
Sku: 31971 Description: 7050T7451 ALUM PLT AMS 4050 3.250 DFARS: No Temper: T7451 Thickness: 3.2500 Width: 48.5 Length: 144.5 IN Specification: AMS4050 AMS-STD-2154
Sku: A3422 Description: AFP 7075 T7351 AMS 4078 1.2500 x 6.0000 x 6 DFARS: No Temper: T7351 Thickness: 1.2500 Width: 6 Length: 144 Specification: BSS 7055 CMMP 025
Sku: 31965 Description: 7050T7451 ALUM PLT AMS 4050 1.250 DFARS: No Temper: T7451 Thickness: 1.2500 Width: 48.5 Length: 144.5 IN Specification: AMS4050 AMS-STD-2154
Sku: 61292 Description: AFP 7050 T7451 AMS 4050 .2500 x 60.5000 x 144.5 DFARS: Yes Temper: T7451 Thickness: 0.2500 Width: 48.5 Length: 144.5 Specification: AMS4050

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Applications:

  • Fuselage frames
  • Bulkheads
Chemical Composition Limits (WT %)
Silicon 0.12
Iron 0.15
Copper 2.0-2.6
Manganese 0.1
Magnesium 1.9-2.6
Chromium 0.04
Zinc 5.7-6.7
Titanium 0.06
Others, each 0.05
Others, total 0.15
Balance, Aluminum
Typical Mechanical Properties
ThicknessTensile StrengthYield StrengthElongation
In. KSI KSI %
.250-6.00 83-73 73-63 13-11

Aluminum Alloy 7050 plate is available in two tempers: T7451 (formerly T73651) offers better stress corrosion cracking resistance and excellent exfoliation resistance at slightly lower strength levels; and T7651 combines the highest strength with good exfoliation corrosion resistance and average stress corrosion cracking resistance.