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Aluminum 6063

Aluminum 6063

Material Type

Metal

Material Name

Aluminum 6063

Alternative Names

Alloy 63S | EN AW-6063 | 62400| AlMg0.7Si | A96063 | H9

Process Compatibility

CNC Milling, CNC Turning

introduction

Aluminum 6063 in CNC Machining

Aluminum-6063

Aluminum 6063 is mainly composed of aluminum, magnesium, and silicon. Its excellent machinability makes it good for cutting, drilling, and shaping in CNC processes.

Typically used in its as-extruded state, it undergoes extrusion to create various profiles and structural components. The alloy is known for its anodization capability, enhancing corrosion resistance, and providing decorative finishes. It's resistant to corrosion, particularly in outdoor settings. It can be welded using TIG (tungsten inert gas) or MIG (metal inert gas) methods but post-weld heat treatment may be needed for specific applications. CNC machining allows for tight tolerances and precision with Aluminum 6063  to produce intricate parts. The tooling and cutting speeds must be chosen carefully to prevent wear and ensure optimal surface finishes. Adequate cooling and lubrication during machining help manage heat and facilitate chip evacuation.

The composition of aluminum alloy 6063 is defined by specified ranges for various elements, presented as a percentage by weight. The alloy consists primarily of aluminum (Al) with a minimum content of 97.5% and a maximum of 99.35%. Other key constituents include magnesium (Mg) ranging from 0.45% to 0.90%, silicon (Si) from 0.20% to 0.60%, and iron (Fe) from 0% to 0.35%. Additionally, chromium (Cr), copper (Cu), manganese (Mn), titanium (Ti), and zinc (Zn) are present in minimal amounts, each ranging from 0% to 0.10%. The cumulative content of other miscellaneous elements is limited to 0.15% in total, with individual elements not exceeding 0.05%.

Properties

Properties Table of Aluminum 6063

MECHANICAL PROPERTIES
Ultimate Tensile Strength  110-210 MPa
Yield Strength 55-130 MPa
Young's Modulus(Elasticity)  68-69 GPa
Elongation at Break 8-18 %
Physical Properties
Corrosion Resistance High
Magnetism Non-magnetic
Weldability Good
Thermal Properties
Maximum Service Temperature Approximately 200°C (392°F)
Thermal Expansion Coefficient 23-25.6 x 10^﹣6/°C
Thermal Conductivity 190-220W/(m·°C)
Electrical Properties
Electrical Resistivity 3.32 μΩ*cm
ESD Safety Good conductivity, used in ESD-sensitive enviroments

TECHNOLOGY OVERVIEW

Basic Knowledge of Aluminum 6063

What is Aluminum 6063?

Aluminum 6063 is a versatile alloy known for its strength, corrosion resistance, and formability. Belonging to the 6000 series of aluminum alloys, it's widely used in construction and architecture. The alloy's standout feature is its high extrudability, allowing for easy shaping during manufacturing. These are why Aluminum 6063 is also called an architectural alloy or extrusion alloy.

Its corrosion resistance is important for outdoor applications. While not as heat-treatable as some other alloys, Aluminum 6063 can undergo processes like solution heat treatment and artificial aging to enhance its mechanical properties. Its weldability adds to its fabrication ease. Aluminum 6063 is adaptable to different manufacturing processes.

Advantages of Aluminum 6063

  • Excellent machinability
  • High formability and extrudability
  • Good corrosion resistance
  • Lightweight nature
  • Excellent weldability
  • Good thermal conductivity
  • Recyclability
  • Cost-effective

Applications of Aluminum 6063

  • Architectural framing systems such as window and door frames, curtain walls
  • Extruded shapes and profiles
  • Automotive components like body and frame sections, trim pieces
  • Industrial and commercial ladders, scaffolding
  • Electrical enclosures, heat sinks
  • Lighting fixtures, lamp housings, frames
  • Solar panel frames

FAQ

Machining Aluminum 6063 Buying FAQs

6063 aluminum has a density of 2.7 g/cm3 (0.0975 lb/in³), similar to pure aluminum. 6063 aluminum is considered lightweight compared to many other alloys.
6063 aluminum is known as architectural aluminum. It is easily shaped into complex forms for architectural use. It is not as strong as 6061 but it offers better corrosion resistance and a smoother surface finish.
A commonly used rod is ER4043. It is also known as ALSi-5, a filler metal containing 5% Silicon and Aluminum. It provides good fluidity and crack resistance during welding. It is mainly used for welding various Aluminum Alloys, such as 3003, 3004, 5052, 6061, 6063, and Casting Alloys like 43, 355, 356, and 214. The melting range for ER4043 is 1,065°F - 1,170°F.

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