Alcoa Markets All :

2026 Extrusion Alloy

Description
Alcoa developed Extrusion Alloy 2026 as an improvement over Alloys 2024 and 2224 extrusions, and is a candidate alloy for aerospace structural applications where the governing selection criteria are high damage tolerance, good fatigue resistance and a high degree of manufacturability.
Benefits of Alloy 2026-T3511 extrusions include:
 
  • >10% higher minimum tensile strength
  • Higher strength relative to 2024-T3511
  • Higher fracture toughness than 2024-T3511
  • Better resistance to fatigue crack growth
  • Reduction of coarse-grain "recrystallization layer"
  • Low machining distortion

Applications
Alcoa Extrusion Alloy 2026 was developed as an improvement over incumbent Alloys 2024 and 2224 extrusions in aerospace structural applications where the governing selection criteria are high damage tolerance, good fatigue resistance and a high degree of manufacturability. The improved resistance to fatigue crack propagation and higher fracture toughness of Alloy 2026 permit increased intervals between inspections and improved residual strength. In addition to improved damage tolerance, extrusion Alloy 2026-T3511 also has significantly higher “A”- basis minimum strengths than 2024-T3511 and 2224-T3511.

Extrusion Alloy 2026-T3511 also reduces manufacturing costs compared to Alloys 2024-T3511 and 2224-T3511 through improved formability and by providing a thinner coarse recrystallized surface layer, which requires less machining and improves buy/fly.
 
2026-T3511 extrusion is currently available in a thickness ranging from < 0.249 – 3.250 in. Alloy 2026 is also available in the T8511 temper for thin extrusions suitable for applications that require an additional increase in yield strength.
 



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Related Documents
Alloy Data Sheets [261KB]


Contact Information
Jerry Smink
Sales Office
Alcoa Forgings and Extrusions
3131 E. Main St
Lafayette, IN 47905
United States
765.771.3138
800.448.3448 ext 3138
765.771.3195

Email