Bronze is one of the oldest metals discovered, dating back to around 3500 BCE (Bronze Age), making it one of the earliest alloys before the application of chemical parameters for alloying this metal. Bronzes are primarily copper-based alloys that contain tin. While bronze used to refer to alloys made of copper and tin, today, various types of this alloy are named based on the main element of the alloy.
WHAT ARE THE PROPERTIES OF BRONZE?
Melting Point: Ranges between 950°C - 1050°C depending on the tin content.
Density: Approximately 8.8 g/cm³.
Color: Tends to be reddish-brown/golden.
Low friction compared to other metals.
Excellent electrical and thermal conductivity compared to most steels.
The properties of bronze depend on the specific composition of the alloy and how it is processed.
WHAT ARE TIN BRONZES?
Copper-tin alloys within certain limits constitute the most important bronzes industrially. The most significant features of tin bronzes are their high resistance to corrosion and high wear resistance. They also have excellent lubrication capabilities. Bronzes containing 6% tin are suitable for both cold and hot processing. Increasing the tin content increases the material's strength but significantly decreases its elongation capability. Bronzes containing 10-12% tin are ideal in terms of mechanical properties and are preferred for cast parts. Lead-containing tin bronzes contain up to 20% lead and are preferred for bearings in low-hardness shafts.
WHAT ARE ALUMINUM BRONZES?
Aluminum bronzes are copper-based alloys containing up to 14% aluminum. They offer mechanical and chemical properties that other alloys may not provide. These characteristics provide various advantages for aluminum bronzes. Some types have hardness reaching up to 40-42 RC. Varieties like Cupral 8, with hardness up to 40 RC, are suitable for guide rollers, slides, and tools subjected to heavy friction. Their high wear resistance makes them suitable for use in mold-making and machine manufacturing as an alternative to steel.
WHAT ARE NICKEL BRONZES?
Alloying with nickel significantly enhances copper's corrosion resistance. Nickel bronze alloys have mechanical properties comparable to stainless steels at high temperatures. Adding 1-2% iron and manganese increases chemical stability, and these alloys form a thin oxide layer on the surface, providing corrosion resistance. Some alloys can achieve superior physical properties through heat treatment.
The price of bronze material varies depending on the product section, dimensions, and surface quality. You can access our prices through the "Switch to Online Sales" button on the www.saglammetal.com homepage.
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