Monday, August 31, 2020

Which Is Stronger Brass or Bronze?

 

If you’re choosing between brass and bronze for your application, there are many factors to consider: resistance to corrosion and wear, price, appearance, and conductivity are just a few. One of the most important factors for many applications is strength—which is stronger, brass or bronze? Here’s what you should know. 

What Is Bronze?


Bronze and brass are both made with copper, but bronze is made with a combination of copper and iron, tin, zinc, aluminum, or magnesium. Bronze is commonly used to fabricate items that need to be resistant to wear like bearings, gears, pump parts, and valves. Another popular use for bronze is in architectural details, sculptures, and statues.

(If you’re interested in learning more, read about how bronze is made on our blog.)

What Is Brass?


The main difference between brass and bronze is that brass is made primarily with copper and zinc, although other elements like iron, manganese, aluminum, lead, and tin can be added to change the color of the resulting alloy or give it different characteristics. The strongest varieties of brass have the highest levels of zinc. Brass is a popular choice for jewelry and other consumer goods because it can be manufactured in a wide range of colors, from red to yellow.

(Read more about the process of how brass is made.)

Brass vs. Bronze Strength


To answer which metal is stronger, brass or bronze, it’s important to take a moment to think about what we mean by strength. “Strength” isn’t a physical property we use in the industry to characterize different metals; instead, physical properties include characteristics like conductivity, resistance to corrosion, luster, formability, and hardness.

Thus, when it comes to determining which is stronger, we need to take a closer look at the properties needed for your application. Do you need a metal that is malleable instead of brittle? In this case, you will want to choose brass. Do you want a metal that has a higher melting point? Bronze comes out on top here. Bronze is also more resistant to corrosion. If by strength, you want the harder or the two metals, bronze is also the winner.

The benefit of working with metal alloys like bronze and brass is that there are many choices available, as different formulations can yield completely different physical properties. Our team at Atlas Bronze can help you understand the best material for your application.

Brass vs. Bronze Price


If you’re still wondering, “should I choose bronze or brass?”, you may want to look at the price of each. Bronze is typically more expensive than brass, although the exact cost depends on the composition of the alloys you’re comparing. 

Learn More About How to Tell the Difference Between Brass and Bronze


Are you deciding between bronze or brass for your application? Do you need help understanding the differences between these options? Atlas Bronze is here to help you with all of your purchasing decisions. Contact us at 1-800-478-0887 to speak with one of our experts and get started.

Tuesday, August 18, 2020

What Is a Bushing?

 

metal bushing










Bushings are one of the simplest types of bearings. Also known as a sleeve bearing or plain bearing, bushings are thin tubes that enable a sliding motion between two parts or surfaces. They reduce friction, most often in machinery that has a sliding shaft or rotating component. There are several different types of bushings, many of which we manufacture and sell at Atlas Bronze.

Sleeve Bushings


Bronze sleeve bushings are designed to allow sliding without friction. They must either be used in conjunction with a system that lubricates the bearing or they can be purchased with oil or grease grooves or graphite plugs for self-lubrication (also known as oil-impregnated bushings). It’s important to consider both the velocity of your application as well as the applied load when choosing a sleeve bearing; you should also consider the amount and type of lubrication needed. A graphite-plugged or oil-impregnated bushing needs less maintenance and replacement than a plain sleeve bearing.

Flange Bushings


Flanged bearings (also known as bushings) are used when a shaft runs perpendicular to the bushing’s mounting surface. They give the bushing the extra support needed to perform at high speeds and bear heavy loads, preventing the shaft from vibrating or flexing during operation. As you might guess from the name, flange bushings have a flange at one or both ends. This lip is what holds the bushing in place. Because flange bushings are affixed to a surface on one or both sides, it makes them ideal for applications where thermal expansion is likely to occur.

Thrust Washers


Bushings designed for thrust are referred to as thrust washers or thrust bearings. At Atlas Bronze, we manufacture plain thrust washers, oil or grease grooved washers, and graphite-plugged washers. Thrust washers are used as an alternative to rolling thrust bearings when only moderate velocities are involved in an application. Some common uses for thrust washers include appliances, power tools, vehicles, and any application in which axial forces need to be transmitted while keeping components aligned along a shaft.

Choosing the Right Bushing for Your Application


Although there are many materials used to manufacture bushings, we recommend metal bushings—and bronze bushings in particular—for their resistance to wear, high quality, and versatility. We carry a wide range of sizes in stock, with custom orders available when needed.

Most people know whether they need a sleeve bushing, flange bushing, or thrust washer for their application; they likely also know if they should purchase plain, grooved, or graphite-plugged bushings. What can be more difficult is determining the material for your bushings. At Atlas Bronze, we can use many different casting methods and bronze alloys; the choices you make here will determine the physical properties of the end-product. Do you need bushings that are resistant to heat? Corrosion? Our team will help you make the right decision for your needs.

Learn More About Bushings


If you’re researching bushings for your business, Atlas Bronze is available to help you understand all of the different options. Contact us at 1-800-478-0887 to speak with one of our experts and get started.