Bronze and brass valves: What is the difference?
Brass and bronze are easily confused. They look alike, have similar names, and are used in many similar applications. These materials have many positive qualities, but they are not the same. There are two or more differences between bronze and brass valves, but not everyone knows it. Both materials contain a large amount of copper as alloys, but the price, properties and performance are different.
The intended use of the valve usually determines the composition, but it is not always clear why this happens because one of the media may be more compatible. However, the choice of materials is limited to the metallurgical skills of the people. The two most commonly used materials in the manufacture of valves are bronze and brass. This preference is because both metals are very malleable. Both are artificial combinations of natural metallurgical elements. Brass is an alloy of copper and zinc, but bronze is one of the oldest alloys, consisting mainly of copper and tin. Although the two-metal valves offer many advantages suitable for this application, but their superiority is controversial.kp-lok.com
The Bronze valve
The Romans were known first to be using the flow control valves in the early time. They were the first to be using bronze container and the first to produce a flow control valve very similar to today. The pipe is made like a modern bronze ball without the use of lead. The Romans made malleable metal cast of copper, tin and lead, but manganese and aluminum can also be added to bronze I recent time. A disadvantage of bronze is that the valves can be made only by casting valves or machining cast ingots. Bronze exterior roughnessknown for shrinking andporosity are the direct result of casting (bronze alloys, including polishing bismuth, nickel, and lead In contrast, bronze is very cheap and very ductile, especially corrosive materials, similar to seawater.
Choosing Brass Valves
Brass is more flexible and malleable than bronze because different combinations of copper and zinc give copper different properties and are therefore more versatile. Brass can also be made byforging, casting, hot extrusion or cold forming and is therefore suitable for its manufacture. It is a very easy job and its smooth surface reduces manufacturing costs. Brass has a high resistance to corrosion, but when the concentration of chlorine is high, the zinc content decreases. Otherwise, brass is suitable for all types of media, including natural gas. Even in the case of drinking water, brass is more natural than bronze because its content is much lower than that of bronze. Of course, by today’s standards, the comparison with these controls is the most basic. Modern metallurgy is much more advanced than the Romans had imagined.
Today’s foundries produce high quality bronze alloys for countless applications, but the use of potable water is being phased out. Likewise, contemporary brass alloy that counterattack dezincification (complicationsrelated with standard extruded brass due to zinc content) are produced using high tech manufacturing techniques using chemicals and heat. These breakthroughs in the field of metallurgy help eliminate the need for mixed lead, extend the life of pipes and valves, and ensure the continued use of brass. But brass has several advantages over bronze, but you should not count it. Lead-free bronze valves (bronze valves that meet or exceed the lead limits of the Clean Water Act) are readily available and can be used as a general choice for water pipes less than or equal to 3 inches in diameter. Requiring cost reduction. It helps to understand the difference between copper and brass valves.