6061 Marine Grade Aluminum Square Bar

Marine Grade Aluminum Square Bar 6061 is widely used in marine environments due to its excellent corrosion resistance and strength. It has good weldability and machinability, making it suitable for manufacturing ships, marine structures, and equipment.

The main alloying elements of Marine Grade Aluminum Square Bar 6061 are magnesium and silicon, which provide outstanding mechanical properties. Additionally, after heat treatment, it can achieve even higher strength. Furthermore, the surface treatment of 6061 aluminum is excellent, allowing for anodizing, which further enhances its corrosion resistance and aesthetic appeal.

Marine Grade Aluminum Square Bar 6061 is typically subjected to anodizing or other corrosion-resistant treatments to improve its corrosion resistance in marine environments. This treatment effectively prevents the erosion of the aluminum alloy by saltwater and other corrosive substances, extending its service life.

Popular Specifications of 6061 Marine Grade Aluminum Square Bar

10mm x 10mm
20mm x 20mm
25mm x 25mm
30mm x 30mm
40mm x 40mm
50mm x 50mm

Haomei Aluminum has obtained certification for marine aluminum plates from DNV, NK, CCS, ABS, BV, LR, KR, and other organizations.

Popular Heat Treatment States of 6061 Marine Grade Aluminum Square Bar

T4: A condition that has undergone solution treatment followed by natural aging. This condition provides the aluminum alloy with good strength and excellent formability, suitable for applications requiring subsequent processing.
T3511: This is a specific treatment state of 6061 aluminum alloy, indicating that it has undergone solution treatment and artificial aging, commonly used for plates and profiles. This state provides higher strength and corrosion resistance.
T6: A condition that has undergone solution treatment and artificial aging. The T6 state of 6061 aluminum alloy has higher strength and is widely used in applications requiring high strength and corrosion resistance, such as aerospace and marine engineering.
T8511: This is another specific treatment state of 6061 aluminum alloy, indicating that it has undergone solution treatment, artificial aging, and subsequent stress relief. The T8511 state offers excellent strength and fatigue resistance, suitable for high-demand structural applications.

Mechanical Properties of 6061 Marine Grade Aluminum Square Bar

Good Weldability: 6061 aluminum alloy is easy to weld, suitable for various welding processes.
Machinability: It is suitable for machining and can be cut, milled, drilled, etc.
Good Surface Treatment: It can undergo anodizing, electroplating, painting, and other surface treatments.

Applications of 6061 Marine Grade Aluminum Square Bar

1. Shipbuilding

Hull Structure: 6061 aluminum square bars can be used to manufacture the framework and structural components of small vessels, as their lightweight characteristics help improve the speed and fuel efficiency of the ships.
Decks: Aluminum alloy decks have high strength and corrosion resistance, making them suitable for use in marine environments. 6061 aluminum square bars can be processed into deck support frames and other structural components.
Cabins and Bulkheads: Used to manufacture the internal cabins and bulkhead structures of ships, providing good strength and stability.
Accessories and Devices: Including rudders, masts, railings, etc., the machinability of 6061 aluminum alloy makes these components easy to manufacture and install.

2. Marine Engineering

Offshore Platforms: Used for support and structural components, such as the framework and supports of offshore oil and gas platforms. The lightweight characteristics of aluminum alloys help reduce the platform's weight and improve stability.
Buoys and Floats: 6061 aluminum square bars can be used to manufacture floating devices like buoys and floats, which need good corrosion resistance and buoyancy.
Ocean Monitoring Equipment: Used to create the framework for ocean monitoring and testing equipment, capable of withstanding various pressures and corrosion in marine environments.

3. Recreational Water Sports Equipment

Canoes: Aluminum alloy canoes are lightweight and sturdy; 6061 aluminum square bars can be used for the frames and supports of canoes, enhancing durability and performance.
Surfboards: Used to create the supporting structure of surfboards, increasing their strength and stability while maintaining a lightweight design.
Other Water Sports Equipment: Such as structural components in kite surfing, windsurfing, etc., 6061 aluminum alloy provides the necessary strength and corrosion resistance.

4. Other Applications

Underwater Structures: In underwater construction and facilities, the corrosion resistance and strength of 6061 aluminum alloy make it an ideal material.
Water Amusement Facilities: Such as water slides, floating platforms, etc., 6061 aluminum square bars provide necessary structural support and durability.

The marine grade 6061 aluminum square bar, due to its unique physical and chemical properties, has become an important material in shipbuilding, marine engineering, and water sports.

6061 marine aluminum square bar composition limits

Weight%	Alloy 6061
Si	0.4-0.8
Fe	0.7
Cu	0.15-0.4
Mn	0.15
Mg	0.8-1.2
Zn	0.25
Ti	0.15
Cr	0.04-0.35
Others	each	0.05
	total	0.15
Al	Bal

6061 Marine aluminum square bar mechanical properties

Alloy	Temper	Sample temper	Thickness ｍｍ	Tensile strength RmMPa RｍMPa	Specified non-proportional extension strength Rp0.2 Mpa Rp0.2 Mpa	Elongation after break%
Alloy	Temper	Sample temper	Thickness ｍｍ	Tensile strength RmMPa RｍMPa		A50 ｍｍ	A
6061	O	O	≤150.00	≤150	≤110	16	14
	T4	T4	≤150.00	180	110	15	13
	T6/T8511	T6/T8511	≤150.00	260	240	8	6
	T3511	T3511	≤150.00	270-310	200-260	12%-18%	12%

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