What is Mill Finish Aluminum Extrusion
Detailed explanation of finish aluminum:
Mill finish is a state of surface treatment of a metal, especially after it has been machined, pressed or rolled. In the case of aluminum, it refers to the surface of the natural material after the aluminum is extruded or rolled out of production, without any grinding, chemical treatment, and other processing.
Its advantages:
1. Lightweight:
Aluminum is inherently lightweight, and Mill finish does not add any additional weight or coatings, giving this aluminum an advantage in application scenarios that require a lightweight material.
2. Lower cost:
Mill finish extruded aluminum is simpler and less expensive to produce than aluminum with complex surface treatments. It only needs to go through the extrusion process before it is finished. Therefore its manufacturing cost is low.
Disadvantages:
1. Rough surface:
Its surface is usually rough and not as smooth as the surface of treated extruded aluminum. This rough surface may affect its aesthetics and tactility. If it becomes a decorative material it can cause design disagreement.
2. Susceptible to corrosion:
Due to its untreated surface, Mill finish extruded aluminum is susceptible to external corrosion and damage. Under the action of certain chemical substances, it may accelerate its corrosion process, especially when used in some special environments need special attention.
3. Low strength at low temperature:
The low temperature strength of aluminum alloy material is low. It is easy to be damaged or ruptured under extreme cold conditions. mill finish extruded aluminum as a material without surface hardening treatment. It is difficult to resist the negative effects of low temperatures.
Because mill finish extruded aluminum is raw and natural. It can be used in the following applications:
1. Customized products
Mill finish aluminum is an ideal choice for customized products that need to showcase the original metallic texture and appearance. For example, artwork, furniture and decorative items may choose to use untreated aluminum to showcase their unique aesthetic value.
2. On industrial and mechanical parts
It can be used as a material for parts that require high precision. Examples include gears and connectors. These parts are usually coated with lubricating oil, so extruded aluminum without surface treatment would be a good choice.
Final Summary
Mill finish aluminum has advantages in certain application scenarios with its raw, natural surface condition and lower cost.
However, its rough surface, susceptibility to corrosion, low strength at low temperatures, and difficulty in cleaning also limit its range of applications.
Hugh Aluminum is an aluminum extrusion manufacturer based in China. We have extrusion, powder coating, anodizing, CNC and polishing processing capabilities. We are 15 years experienced aluminum extrusion supplier and can offer you factory price and high quality products.
