ALUMINIUM ALLOY 6063T5 AND 6063T6

2026-05-31

6063 is an aluminum alloy commonly used in the manufacturing of various products, such as building materials, electronic equipment, automotive…

6063 aluminum alloy is the standard alloy for architectural aluminum window & door profiles. T5 and T6 refer to different heat treatment temper states.

6063-T5: Air-cooled temper. Medium hardness and good toughness, easy extrusion and processing. It is the standard choice for aluminum window and door frames, cost-effective and meets most residential building strength requirements.

6063-T6: Water quenched temper. Higher tensile strength and hardness but less ductile. It is widely used for curtain walls and large load-bearing structures. It is NOT the default for regular windows. T6 material raises production cost and processing difficulty.

Selection advice: Use 6063-T5 for most aluminum windows and doors. Choose 6063-T6 only for curtain wall and large facade frames with high structural load requirement.

Keywords:

Shanxi Xinhe

Doors & Windows

Top 10 aluminium profiles brand in China

WHAT IS THE DIFFERENCE BETWEEN COMMON ALUMINIUM WINDOWS AND CURTAIN WALLS

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