6061-T4 aluminum alloy belongs to the Al-Mg-Si (aluminum-magnesium-silicon) series and is an engineering material offering medium strength and well-balanced properties. The T4 temper indicates that the alloy has been solution heat-treated and naturally aged. This condition provides high ductility and excellent formability while offering slightly lower strength compared to the T6 temper. Corrosion resistance is one of the strongest features of 6061-T4, showing very stable performance especially in atmospheric conditions and mildly chemical environments. Therefore, it is widely preferred in many non-marine outdoor applications.

In terms of strength, 6061-T4 provides lower strength compared to high-strength alloys like 2024-T3, but in return offers much better corrosion resistance and weldability. Compared to 7075-T6, although 7075 has significantly higher strength, 6061-T4 offers superior ductility and machinability. When compared with 5083, while 5083 provides better seawater resistance, 6061-T4 delivers better machinability and overall engineering balance. Therefore, 6061-T4 represents an optimal balance between performance and workability.

Machinability and bending properties are among the most prominent advantages of 6061-T4. Thanks to the T4 temper, the material can be easily formed into complex shapes with a low risk of cracking. This provides significant advantages in CNC machining, extrusion, and sheet metal forming applications. Additionally, in terms of coating capability, it is highly suitable for anodizing processes and can achieve excellent surface finishes, making it ideal for both functional and decorative applications.

In terms of vibration response and weldability, 6061-T4 performs very well. Its vibration damping capability enhances structural stability, especially in machinery components. Its weldability is excellent using MIG and TIG methods, with a low risk of post-weld cracking. In this aspect, it is far superior to 2024 alloy, which has limited weldability. 6061-T4 is a reliable choice for welded constructions.

Applications clearly demonstrate the versatility of 6061-T4. It is widely used in automotive, aerospace, construction, machinery manufacturing, and general engineering applications. It is especially preferred where moderate strength, good formability, and corrosion resistance are required together. Typical applications include bicycle frames, automotive chassis components, structural profiles, and pressure vessels. 6061-T4 remains one of the most widely used aluminum alloys in industry due to its balanced properties.

MATERIAL COMPOSITION STANDARDS

6061 T4 is available in the following standards:
• 6061 T4 Sheet; AMS 4026, EN 3341, AIR 9048.220, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B209
• 6061 T4 Plate; AMS 4026, EN 3341, AIR 9048.220, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B209
• 6061 T4 Extrusion Rod; AMS 4166 (Forged), AMS 4161, EN 3342, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B221
• 6061 T4 Extrusion Bar; AMS 4166 (Forged), AMS 4161, EN 3342, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B221
• 6061 T4 Extrusion Wire; AMS 4166 (Forged), AMS 4161, EN 3342, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B221
• 6061 T4 Extrusion Tube; AMS 4166 (Forged), AMS 4161, EN 3342, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B221
• 6061 T4 Forged Extrusion; AMS 4166 (Forged), AMS 4161, EN 3342, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B221
• 6061 T4 Cold-Drawn Rod; AMS 4116, EN 3557, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B211
• 6061 T4 Cold-Drawn Bar; AMS 4116, EN 3557, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B211
• 6061 T4 Cold-Drawn Wire; AMS 4116, EN 3557, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B211
• 6061 T4 Cold-Drawn Tube; AMS 4116, EN 3557, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B211
• 6061 T4 Seamless Cold-Drawn Rod; AMS 4081, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B241
• 6061 T4 Seamless Cold-Drawn Bar; AMS 4081, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B241
• 6061 T4 Seamless Cold-Drawn Wire; AMS 4081, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B241
• 6061 T4 Seamless Cold-Drawn Tube; AMS 4081, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B241
 

Characteristic Properties of 6061 T4: 

• Strength: Average
• Machinability: Moderate
• Weldability: Very Good
• Formability: Reasonable
• Corrosion Resistance: Very Good
• Heat Treatable: Yes
   

Some Well-Known Applications of 6061 T4: 
Railcar components, tank parts,
Durable consumer goods,
Motorboats and helicopters.
 

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We supply 6061 T4 in sheet/plate, rod/bar, and tube/profile forms.​

• Rod / Bar
• Sheet / Plate
• Plate
• Tube / Profile