• 1-800-221-5579
  • info@lewisbrass.com
  • The Tubing & Alloy Experts - Prompt Service. Superior Quality. Competitive Pricing

What is A260 Brass

A272 brass is a type of high-performance brass alloy, and it sports some pretty unique features. For example, it’s well-known for its excellent mechanical properties and corrosion resistance.

Below, we'll delve into the specifics of A272 brass, explore its composition, properties, applications, manufacturing process, advantages, and disadvantages, and compare it to other brass alloys. We'll also cover the maintenance and care needed for A272 brass products and explain how Lewis Brass can assist you with your brass needs.


Definition of A272 Brass

A272 brass is a specific type of brass alloy made from the metals copper and zinc, which both help to give it a wide range of mechanical properties. More notably, this particular variant of brass is prized by many different industries, mainly for its balance of workability and performance.


Composition of A272 Brass

Now you know what A272 brass is, let’s look at its composition. The composition of A272 brass typically includes around 60-70% copper and 30-40% zinc, though these figures can vary slightly to meet specific requirements. This precise mix of copper and zinc gives A272 brass characteristics such as high tensile strength and excellent corrosion resistance. 

Occasionally, small amounts of other elements, such as lead, iron, or tin, might be mixed in. However, the primary components will remain copper and zinc. 


Properties of A272 Brass

If you’re looking at or considering using A272 brass in your work applications, you probably want to know a bit more about its key properties. Let’s take a look at some of them below: 

  1. High Tensile Strength: A272 brass can withstand significant stress and strain without deforming, so it’s ideal if you need something durable. 
  2. Good Ductility: This means a material can be stretched or bent into different forms without breaking. This property allows A272 brass to be drawn into thin wires or sheets without snapping, so it’s handy when it comes to manufacturing. 
  3. Excellent Corrosion Resistance: A272 brass resists corrosion from water, air, and many chemicals, which thus extends the lifespan of products made from it.
  4. Attractive Appearance: Many people find the golden color of A272 brass aesthetically pleasing, so it's a good choice for decorative use.  

These properties are attractive to many manufacturers, as they can use the alloy for many applications, from industrial to decorative. The choice is all theirs. 


Applications of A272 Brass

The versatility of A272 brass means you can use it in numerous applications across different industries. Let's explore some of the primary uses:


Industrial Uses of A272 Brass

In the industrial sector, A272 brass is a go-to for its strength and resistance to wear and corrosion. Some of its most common industrial applications are: 

  • Valves and Fittings: A272 brass is used in the production of valves and fittings for various industries, including plumbing and gas. Its durability ensures reliable performance over time.
  • Gears and Bearings: The high tensile strength of A272 brass makes it suitable for gears and bearings, where it can withstand significant mechanical stress.
  • Heat Exchangers: A272 brass is often used in heat exchangers and similar applications because it has good thermal conductivity and corrosion resistance.

Decorative Uses of A272 Brass

A272 brass's attractive appearance and ease of polishing make it popular in decorative applications. Examples include:

  • Architectural Hardware: Door handles, knobs, and other architectural hardware made from A272 brass can help you transform the appearance of buildings. 
  • Musical Instruments: Brass instruments often use A272 brass for its acoustic properties and the way it looks. 
  • Art and Jewelry: Artists and jewelers often use A272 brass for its workability and aesthetic qualities to help them create beautiful products. 

Automotive Applications of A272 Brass

Alongside having industrial and decorative uses, A272 brass is also a popular choice within the automotive industry — and for good reason. The automotive industry benefits from the properties of A272 brass in various components, including:

  • Radiator Cores: A272 brass's excellent thermal conductivity makes it ideal for radiator cores, ensuring efficient heat dissipation.
  • Heat Exchangers: Similar to industrial applications, A272 brass is used in automotive heat exchangers for its corrosion resistance and thermal properties.
  • Electrical Components: A272 brass's good electrical conductivity and durability make it suitable for various vehicle electrical components.


Manufacturing Process of A272 Brass

When broken down into several steps, the manufacturing process of A272 brass is relatively straightforward to understand. The production of this alloy involves several stages, which we will break down for you below. 

Extraction of Raw Materials for A272 Brass

First is the extraction of the raw materials copper and zinc. These metals are mined from the earth, with copper being extracted from ores such as chalcopyrite and zinc from sphalerite. Once they are mined, the ores undergo refining processes, which help remove impurities and obtain high-purity metals.

Alloying of A272 Brass

The next step is the alloying stage. The process involves melting the purified copper and zinc together in specific proportions to create A272 brass. This procedure is carefully controlled to ensure the correct composition, as the copper-to-zinc ratio can significantly impact the properties of the alloy. 

During the alloying stage, manufacturers sometimes add small amounts of other elements to improve or manipulate certain characteristics. For example, they may want to change its machinability or corrosion resistance.

Casting and Forming Methods for A272 Brass

Once the alloy is created, it undergoes various casting and forming processes to achieve a specific shape and size. Some of the most common methods are: 

  • Sand Casting: This traditional method involves pouring molten brass into sand molds to create complex shapes.
  • Continuous Casting: Continuous casting involves pouring molten metal into a mold and cooling it rapidly, and is useful for producing long, uniform sections of brass.
  • Extrusion: In this process, brass is forced through a die to create long sections with specific cross-sectional shapes.

Subsequent forming processes, such as rolling and drawing, further refine the brass into its final form, ready for use in various applications.


Advantages and Disadvantages of A272 Brass

Like any material, A272 brass has its strengths and weaknesses. Understanding these can help you to determine whether it is the right choice. 

Advantages of A272 Brass

A272 brass offers several advantages, including:

  • Corrosion Resistance: One benefit of A272 brass is its resistance to corrosion, particularly from water and various chemicals. This property extends the lifespan of products made from this alloy.
  • Good Machinability: A272 brass is a dream to work with. It can be easily machined and moulded into various shapes.
  • Aesthetic Appeal: The golden color and ability to take on a high polish make A272 brass an attractive choice for decorative applications.
  • Thermal and Electrical Conductivity: A272 brass has good thermal and electrical conductivity, which benefits applications such as heat exchangers and electrical components.

Disadvantages of A272 Brass

Despite its many advantages, A272 brass also has some disadvantages:

  • Cost: A272 brass can be more expensive than other materials, particularly when high-purity copper and zinc are used in its production.
  • Maintenance: Products made from A272 brass may need cleaning and polishing to maintain their appearance and performance.
  • Limited High-Temperature Performance: While A272 brass performs well in many environments, it may not be suitable for extremely high-temperature applications.


Comparison to Other Brass Alloys

To better understand the unique qualities of A272 brass, you may find it helpful to compare it to other common brass alloys. This should make your choice much easier. 

A272 Brass vs. C260 Brass

C260 brass contains about 70% copper and 30% zinc. While both A272 and C260 brass offer good corrosion resistance and ductility, A272 brass usually has a slightly different composition that makes it much stronger. Therefore, if you need a metal with higher mechanical stress, then A272 brass should be your go-to. 

A272 Brass vs. C360 Brass

C360 brass, or free-machining brass, contains a small amount of lead, significantly improving its machinability. This makes C360 brass ideal for applications requiring extensive machining. 

In contrast, A272 brass, while still machinable, does not contain lead and offers better overall strength and corrosion resistance, making it more suitable for structural and decorative applications.

A272 Brass vs. C464 Brass

C464 brass, or naval brass, includes a small percentage of tin. The addition of tin into the mix increases its resistance to dezincification and corrosion in marine environments. 

While A272 brass offers excellent corrosion resistance, C464 brass may be a better choice for applications in highly corrosive environments, such as seawater. However, A272 brass still provides a good balance of properties for many other applications


Maintenance and Care of A272 Brass Products

Like with most products and materials, proper maintenance and care are essential, especially if you want your A272 brass products to look their best and perform well over time. Here are some tips for maintaining A272 brass:

Cleaning and Polishing Techniques for A272 Brass

Yes, nobody enjoys cleaning. However, regular cleaning and polishing are important for maintaining the appearance of A272 brass. 

Let’s look at some cleaning and polishing techniques you can use below. 

  • Routine Cleaning: Take some mild soap and water to clean the surface of A272 brass, before rinsing and drying it. You should take care to avoid abrasive cleaners.
  • Polishing: Apply a brass polish to restore the shine of A272 brass. You should always abide by the manufacturer's instructions for the best results. Polishing should be done periodically, depending on the exposure and use of the brass item.

Protecting A272 Brass from Corrosion

With all that work that goes into maintaining A272 brass, you’ll likely want to add an extra layer of protection. If you're going to protect A272 brass from corrosion, consider the following measures:

  • Protective Coatings: Applying a clear lacquer or wax can help prevent tarnishing and reduce the need for frequent polishing. Ensure the coating is suitable for brass and follow the application instructions.
  • Proper Storage: Store brass items in a dry environment to minimize exposure to moisture and corrosive substances. Use desiccants if necessary to control humidity levels.
  • Regular Inspections: Periodically inspect brass items for signs of corrosion or tarnish. Early detection allows for timely cleaning and maintenance, preventing more severe damage.


How Lewis Brass Can Help

At Lewis Brass, we are dedicated to providing high-quality A272 brass products tailored to your needs. Our expert team can assist with material selection, custom fabrication, and provide guidance on maintenance and care to ensure you get the most out of your brass products. 

If you have any questions, or want to know more about A272 brass, contact us today and we’ll be happy to help. You can also browse our website to view our full range of materials.