Copper-nickel alloys, Mechanical Engineering

Copper-Nickel Alloys

Complete solubility arises between nickel and copper. All alloys have same microstructure and may be cold or hot worked.

Cupro-nickel also termed as German silver is extremely ductile and malleable. This is good against corrosion because of salt water. Condenser tubes are major parts made out of this alloy. This is also employed for coinage. 75/25, 80/20 and 70/30 alloys are very usual.

Monel metal is essentially 70 percent Nickel and 30% Cu along with minute amounts of iron and other elements. Alloy is well identified for its corrosion resistance and high strength. This alloy is largely employed for chemical and food processing plants. This also finds great employ as turbine blades, screws, nails and valves corrosion resistance bolts. This is known for its individuality silver luster.

                                  Table 19 and 20 respectively illustrates Brasses and Bronzes along with their applications.

                                                        Table no.19: Composition, Properties and Applications of Brasses

Gliding metal (95 Cu, 5 Zn)

High ductility and corrosion resistance, coins, medals, gold platings

Red brass (85 Cu, 15 Zn)

Good corrosion resistance, workability, heat exchanger tube, radiator cores

Cartridge brass (70 Cu, 30 Zn)

Good strength and ductility, rivets, springs, automotive radiator cores

Yellow brass (65 Cu, 35 Zn)

Screws, rivets reflectors, plumbing accessories, automotive radiator cores

Muntz metal (60 Cu, 40 Zn)

Soundness and good machinability, condenser tubes, architectural work

Leaded red brass (85 Cu, 5 Zn, 5 Sn, 5

Pb)

Fair strength, soundness and good machining in cast state, pressure valves, pipe fittings, pump fittings

Leaded commercial bronze

(89 Cu, 9.25 Zn, 1.75 Pb)

Screws, screw machine parts, electrical connectors, builder's applications

Admiralty brass (71 Cu, 28 Zn, 1 Sn)

Condenser, evaporator and heat exchanger tubes, marine applications

High leaded brass (64 Cu, 33 Zn, 2 Pb)

Flat products, gears, wheels

 

                                                        Table no.20: Composition and Applications of a Few Bronzes

Phosphor bronze (94.8 Cu, 5 Sn, 0.2 P)

Bolts, electric contracts, spring, bearing

Phosphor bronze (89.8 Cu, 10 Sn, 0.2 P)

Such applications where high strength and

resistance to salt water is desired, bushing and gears

Gun metal (88 Cu, 10 Sn, 2 Zn)

Sand cast, sued under heavy pressure such as gears and bearings

Aluminium bronze

(88 Cu, 10.5 Al, 3.5 Fe )

High UTS

Beryllium bronze (98 Cu, 1.7 Be, 0.3

Co)

Very high mechanical strength, springs, used against fatigue, wear and corrosion

(UTS - 1200 MPa)

Posted Date: 2/27/2013 1:20:33 AM | Location : United States







Related Discussions:- Copper-nickel alloys, Assignment Help, Ask Question on Copper-nickel alloys, Get Answer, Expert's Help, Copper-nickel alloys Discussions

Write discussion on Copper-nickel alloys
Your posts are moderated
Related Questions
Q. Explain about Horizontal Vessels? Horizontal vessels shall preferably be designed for two saddle supports attached by welding. Design of saddle supports and calculation of

Explain the Single Cast Component Auger Material for Single Cast Component Auger: Either Ni-Cr or Cast iron Length of components: 1250 mm. Outer Diameter of Auger compone

Let consider the breakwater configuration shown in the figure below. The incident wave conditions at the breakwater are a wave height of 1.5m, wave period of 7.0s and a wave crest

Essence of Second Law: Sol: First law deals with conservation and conversion of energy. But it fails to state the conditions under which the energy conversion are possible.

The cockpit of a jet plane flying at a speed of 1200 km/hr is to be cooled by simple air cooling system. The cockpit is to be maintained at 25 0 C and pressure in the cockpit is 1

Cracks   Cracks are the linear ruptures of the metal under stress. Sometimes they appear large and frequently they are narrow separations. The major classification of cracks

RAILWAYS: Railway transport is one of the important modes of transport in India. Its technology is based on the traction of a group of wagons or coaches over a fixed track, co

EXPLANE PLZZ

Newton's first law of motion: First law of Newton: It is magnitude of force that develops acceleration of 1 m/s2 in 1 kg mass of the body. The subject of rigid body mecha

Find an approximated probability: Sixteen numbers are selected independently and at random from the interval [ 0, 1 ]. Find an approximated probability that the mean of these