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Which Is Stronger 6061 Or 6063 Aluminum

Publish: Modify: Nov 16, 2022Author: From:  Haomei

Marine grade 6000 series aluminum alloys are mainly used to produce extruded profiles, and the typical ones are 6061 and6063. Which is stronger? The strength of 6061 is 111-295 Mpa. Learn more.

Marine grade 6000 series aluminum alloys are mainly used to produce extruded profiles, and the typical ones are 6061, 6063, 6082,etc. 6061 marine grade aluminum sheet and tube is a high-quality aluminum alloy..

6061 aluminum rod has excellent processing performance, excellent welding characteristics and electroplating properties, good corrosion resistance, high toughness and no deformation after processing.

6061 aluminum sheet price.jpg

Components with less stress, such as various habitats, fuel tanks, water tanks, storage cabinets, aluminum watertight doors, windows, various hatch covers, movable aluminum doors, sanitary facilities, pipes, ventilation,etc., are mostly are made of 6063, 6082, 3003 and other alloy materials. Which is stronger, 6061 or 6063 aluminum plate?

Different element densities

The main alloying elements of 6063 are magnesium and silicon. The density is 2.69g/cm³. It contains 0.4% Si and 0.7% Mg. The strength is 111-295 Mpa. The melting temperature is 615-655 degrees Celsius.

The main alloying elements of 6061 are magnesium and silicon, and form Mg2Si phase. The composition contains 0.6%Mg, 0.25%Cu, 1.0%Mg and 0.09%Cr. The strength is 127-316 Mpa. In Mg2Si, the ratio of Mg/Si is 1.73. In the state of heat treatment, Mg2Si solid dissolves in aluminum, which makes the alloy have the function of artificial age hardening.


6061: High strength, good weldability, high corrosion resistance.

6063: Excellent weldability, extrudability and electroplating, good corrosion resistance, good toughness.

Application scope

6063 is mainly used in: tubular railings, furniture, frames, extruded profiles for construction.

6061 is mainly used in: manufacturing trucks, ships, trams, furniture, mechanical parts, precision machining, etc.


The 6063 grade aluminum is better in plasticity than the 6061 grade aluminum alloy, which can meet high precision requirements. In terms of strength and processing performance, 6061 aluminum is better than 6063 grade. Haomei Aluminum has both. Welcome to leave message below to inquire 6063 and 6061 aluminum sheet price.

Related Tags:  marine grade aluminum sheet



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