Copper vs Brass: Which Metal Should You Use in Electrical & Plumbing Projects?

When starting a new project, like installing plumbing or wiring, one important question always comes up: which metal is better, copper or brass? Both are commonly used in construction, but they have different properties, are more or less durable, and work differently. Knowing the difference between copper vs. brass can help you avoid making expensive mistakes and ensure your project is a success in the long run.

In this blog, we’ll break down Copper vs Brass for plumbing and electrical work, so you can confidently choose the best metal for plumbing pipes, wires, or fittings.

From brass plumbing fittings to copper metal properties, let’s dive into everything you need to know, especially about Copper vs Brass durability and cost.

Copper vs. Brass: What’s the difference?

In the case of Copper and Brass, the first thing to consider is understanding each metal on its own. Copper is a pure metal that has a reddish brown colour, as well as high conductivity and excellent resistance to corrosion. It has been a favored metal in plumbing and other electrical systems due to its strength and long-lasting properties. Copper tubes are commonly used in plumbing and HVAC systems because they’re lightweight, corrosion-resistant, and easy to install

Brass, in contrast, is an alloy composed of copper and zinc. Its striking, gold-like colour is appealing and, in addition, offers functional advantages such as greater strength and hardness in some applications. However, the performance of brass as an alloy will vary due to its zinc content.

The difference between copper and brass is noted in their characteristics, usage, and appearance. Copper has a softer composition, possesses a greater electrical conductivity, and has better thermodynamic and corrosion resistance. On the contrary, brass has reduced electrical and thermal conductivity in addition to being a versatile fitting, particularly in plumbing applications.

Copper vs. Brass for Electrical Conduction? Which one conducts better?

In electricity, conductivity is everything, and this is where copper shines. This metal has exceptional electrical conductivity, which makes copper the top choice when it comes to using it for wiring, circuit boards, and power systems. This is the reason copper is used almost all over the world in homes, industries, and in electronics.

For electrical purposes, copper wins the battle when compared to brass. Because brass is an alloy that contains zinc, its conductivity is much lower than that of copper. Although brass is sometimes used in electrical fittings and connectors that need to be stronger and resist corrosion, it is not suitable for transporting current over long distances.

If your priority is electrical performance, copper wins without question. Its low resistance, flexibility, and durability make it the go-to metal for all major electrical installations.

A Quick Tip: If you want high-performance wiring, always use copper. Brass should only be used in applications that require strength or anti-sparking qualities, such as connectors or terminals.

Copper vs. Brass for Plumbing: What should you use?

When it comes to plumbing, both metals are widely used—but for different reasons. So, the big question: Copper vs. Brass for plumbing, which one’s better?

Copper has always been favoured in plumbing systems for its resistance to corrosion, capacity to manage hot and cold water, and long service life. Its well-known durability and copper plumbing pipes longevity make it the best metal for plumbing pipes, including in residential water lines.

Brass is more often used for plumbing fittings such as valves, faucets, and pipe connectors. Why? It is stronger, easier to shape into threaded fittings, and resists rust and mineral buildup. In addition, valves and faucets made of brass do not easily crack or break under pressure, which is important for joints that undergo a lot of strain.

Therefore,

• Copper is suitable for main water lines and long pipe runs.
• Brass is ideal for making long-lasting, leakproof fittings and connectors.

They frequently form an ideal partnership in modern plumbing systems.

Durability and Maintenance? Which metal lasts longer?

When investing in materials for your home or project, durability is key. So, how do the Copper vs Brass durability levels compare?

Copper:

• Even in extreme environments, it is naturally resistant to corrosion.
• Long-lasting (typically more than 50 years in plumbing and electrical systems).
• It is low-maintenance and does not rust or flake.
• Ideal for extended pipelines and internal wiring.
• Performs effectively in both hot and cold climates.

Brass:

• It is highly strong and crack-resistant under pressure.
• Ideal for threaded joints, valves, and plumbing fixtures.
• Mineral buildup and performance don't improve well under mechanical stress.
• In low-quality water, they may be more prone to rust. When used correctly, it is long-lasting.

Both copper and brass provide amazing durability, but in different ways. Choose copper for long-term dependability and brass for strength in extremely stressful connections.

Cost and Practical Use: What’s more budget-friendly and Accessible?

When deciding between copper and brass, the cost and practicality of the metals matter a lot, especially if you are working on a large project or are on a budget.

Copper:

1. It costs more than brass because of its cleanliness and high demand in the electrical and plumbing industries.
2. Prices may vary depending on market demand, particularly in industries such as construction and electronics.
3. However, the extended lifespan and inexpensive maintenance frequently justify the initial cost in the long run.

Brass:

1. It's often less expensive than pure copper, especially in fittings and small pieces.
2. They are produced in various shapes and sizes since they are alloys. So, it’s fit to be used for taps, valves, and connectors.
3. A nice balance of price, strength, and corrosion resistance makes it suitable for short-term or modular plumbing.

Practical Uses:

1. Copper lends itself best to applications requiring superior performance and durability as well as excellent conductivity, including whole-house plumbing and wire.
2. Brass is an affordable fitting material that has the strength to stand up to pressure and wear.

Conclusion:

Choosing between brass and copper depends on your project requirements. If you want something durable, resistant to corrosion, and good for electrical conductivity, copper is the better choice. However, if you need strong, cost-effective parts for fittings or connectors, brass may be the better option. Once you understand the main differences between these two metals, it's easier to determine which one suits your plumbing or electrical setup best.

If you're on the hunt for top-notch copper and brass materials such as sheets, tubes, and fittings, Sanlak is a great place to start. This supplier has built a solid reputation for offering durable and precise products.