The use advantage of aviation material copper alloy

Among the copper alloys used in aircraft, aluminum bronze occupies a very high share. Were it not for the strength-to-weight ratio, it would be comparable to alloy steel. Aluminum bronze has the strength and toughness of medium carbon steel and is highly resistant to corrosion, including air, water, and chemicals. Easy to forge, hot or cold rolled and heat treated.

These copper-based alloys contain at least 16% aluminium, while other metals such as iron, nickel and manganese can be added. Aluminum bronze has good tearing properties, strength, hardness, impact resistance and fatigue. Because of these characteristics, they are used in diaphragms, gears and pumps. Aluminum bronze can be made into bars, plates, sheets, bars, forgings and other forms.

Red brass, sometimes called "bronze" because of its tin content, can be used to make piping parts for fuel and lubricating oil systems. This metal has good casting and machining properties. Bronze IS a copper ALLOY WITH TIN IN IT. True BRONZE contains more than 25 PERCENT tin, BUT THOSE with less than 11 PERCENT are more useful, especially for making airplane pipe joints.

Beryllium bronze is a relatively successful copper alloy developed in recent years. It contains about 97 percent copper, 2 percent beryllium, and enough nickel to increase elongation. An important characteristic of this metal is that its physical properties can be rapidly increased by heat treatment, with the tensile strength rapidly increasing from 70,000 pounds in the annealing state to 200,000 pounds in the heat treatment state. The fatigue and wear resistance properties of beryllium copper make it more suitable for diaphragms, precision bearings and bushings, ball holders, and spring washers.

Brass is a copper alloy containing zinc and small amounts of aluminum, iron, lead, manganese, magnesium, nickel, phosphorus, and tin. Brass with a zinc content of 30-35% is malleable, while brass with a zinc content of 45% has a relatively high strength. The Muntz alloy is brass consisting of 60% copper and 40% zinc. It has excellent corrosion resistance to sea water. The metal has an ultimate tensile strength of 50,000 pounds. It is used to make bolts, nuts, and parts to come in contact with salt water.

Manganese bronze is a very strong, tough, corrosion-resistant copper alloy that is formed by adding aluminum, manganese, iron, nickel or tin to a copper zinc alloy. The metal can be plate bent, pressed, stretched, or hot and cold rolled to any desired shape. If it is in the form of a bar, it is usually used in machining parts such as aircraft landing gear and brackets.