Brass, an alloy primarily composed of copper and zinc, is renowned for its malleability, corrosion resistance, and aesthetic appeal. Its density is a crucial property that influences its application in precision parts, particularly in industries requiring exacting standards. Understanding the density of brass helps engineers and manufacturers select the right material for specific applications, ensuring optimal performance and longevity.
What is Brass?
Brass is an alloy with varying compositions, but the most common form consists of about 60-70% copper and 30-40% zinc. This blend not only enhances the mechanical properties of brass but also improves its resistance to corrosion, making it a preferred choice for various industrial applications.
What is the Density of Brass?
The density of brass generally ranges between 8.4 to 8.7 grams per cubic centimeter (g/cm³). This range is broader than that of pure copper, which has a density of approximately 8.96 g/cm³, due to the different zinc content in various brass alloys. The presence of zinc reduces the overall density compared to pure copper but still maintains a substantial density that makes brass a preferred material for many precision components.
Density of Brass lb/in³
The density of brass typically ranges from approximately 0.305 to 0.314 pounds per cubic inch (lb/in³).
Density of Brass kg/m³
The density of brass typically ranges from about 8,400 to 8,700 kilograms per cubic meter (kg/m³).
Composition and Density
The density of brass can be influenced by the copper-to-zinc ratio:
| Brass Grade | Main Components | Density (g/cm³) | Density (lb/in³) | Density (kg/m³) |
|---|---|---|---|---|
| C36000 | 63% Copper, 37% Zinc | 8.5 | 0.307 | 8,500 |
| C46400 | 60% Copper, 37% Zinc, 3% Lead | 8.6 | 0.311 | 8,600 |
| C27000 | 70% Copper, 30% Zinc | 8.4 | 0.305 | 8,400 |
| C28000 | 70% Copper, 30% Zinc, 1% Aluminum | 8.7 | 0.314 | 8,700 |
| C22000 | 85% Copper, 15% Zinc | 8.5 | 0.307 | 8,500 |
| C67800 | 85% Copper, 5% Zinc, 10% Lead | 8.8 | 0.318 | 8,800 |
What is the Density of Soft Yellow Brass?
Soft yellow brass, commonly referred to as C26000 brass, typically has a density of about 8.5 grams per cubic centimeter (g/cm³). This alloy, which is known for its good machinability, corrosion resistance, and relatively high strength, is often used in applications such as fittings, electrical connectors, and various decorative components.
What is the Density of Yellow Brass?
Yellow brass, often referred to as C27000 brass, has a density of approximately 8.6 grams per cubic centimeter (g/cm³). This alloy, which contains a higher percentage of zinc compared to other brass types, is commonly used in applications requiring good strength and corrosion resistance, such as in plumbing fittings, hardware, and mechanical components.
How to Calculate Density of Brass?
To calculate the density of brass, measure its mass and volume. Divide the mass (in grams) by the volume (in cubic centimeters). For example, if a brass sample has a mass of 50 grams and a volume of 5 cubic centimeters, the density would be 10 grams per cubic centimeter.
Importance of Density in Precision Parts
For precision parts manufacturing, the density of brass plays a significant role in several key areas:
Material Selection
The density of brass affects its mechanical properties, such as strength, hardness, and durability. In precision applications, selecting the correct brass type with the appropriate density ensures that the part can withstand the operational stresses and environmental conditions it will encounter.
Machinability
Brass is favored in precision machining due to its favorable density, which impacts its machinability. A material with consistent density allows for more predictable cutting characteristics, leading to better surface finishes and dimensional accuracy in precision parts.
Weight Considerations
The density of brass directly influences the weight of the finished part. In applications where weight is a critical factor—such as in aerospace or automotive components—the density of brass must be carefully considered to achieve the desired balance between strength and weight.
Cost Efficiency
Understanding the density of brass helps in cost estimation. Since brass is priced based on weight, having accurate density information allows manufacturers to better estimate material costs and make informed decisions regarding the use of different brass alloys.
Density of Brass vs Steel
Brass is denser than steel, which means that, for the same volume, brass will weigh more than steel. The following provides a clear comparison table. Learn more about steel density.
| Material | Density (g/cm³) |
|---|---|
| Brass | 8.4 – 8.7 |
| Steel | ~7.8 |
Precision Brass Parts Machining at BOYI
At BOYI, we specialize in providing top-tier CNC machining services for high-quality precision brass parts. Our advanced equipment and skilled team ensure that every component meets the highest accuracy standards, whether it’s a complex geometry or stringent tolerance requirements. We use premium brass materials known for their superior mechanical properties and excellent machinability, ensuring your products achieve optimal strength, durability, and finish. Choose BOYI to turn your design ideas into flawless finished products and enhance your business’s competitive edge. Contact us today to learn more about how we can meet your machining needs.
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Conclusion
In summary, the density of brass is a fundamental property that influences its suitability for precision parts manufacturing. By understanding the density and composition of various brass alloys, manufacturers can make informed decisions that impact the performance, weight, and machinability of their components. Whether it’s for engineering applications or decorative uses, selecting the right brass alloy with the appropriate density ensures that precision parts meet the required specifications and operational demands.
More Resources:
brass melting point – Source: BOYI
is brass magnetic – Source: BOYI
FAQ
The weight density of brass, which is often referred to simply as “density,” typically ranges from 8.4 to 8.7 grams per cubic centimeter (g/cm³).
The current density of brass typically ranges between 8.4 and 8.7 grams per cubic centimeter (g/cm³), depending on the specific alloy and its composition.
The density of brass ranges from 8.4 to 8.7 grams per cubic centimeter (g/cm³). For example, a brass object with a volume of 10 cubic centimeters would weigh between 84 and 87 grams, depending on its specific density.
The current density of brass, or the density of electric current flowing through the material, isn’t typically referred to in terms of the material’s density. Instead, current density is measured in amperes per square meter (A/m²). Generally, for high-current applications, brass can handle current densities ranging from 1,000 to 10,000 A/m², but this can vary based on the alloy and the specific conditions.
Catalog: Materials Guide
This article was written by engineers from the BOYI team. Fuquan Chen is a professional engineer and technical expert with 20 years of experience in rapid prototyping, mold manufacturing, and plastic injection molding.
