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
Rubber Hoses: Fuel or vacuum hoses should be installed so that end is bottomed into its fitting which would ensure adequate area for the hose clip to grip the hose beneath the fla

Traveling at a speed of 16.0 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the roa

Numerica l Problems Based on Overhanging Beam: Q: Draw Shear force diagram for the simply supported beam loaded as shown in the figure given below. Sol.: Let the

Concept of plane stress: Define the concept of plane stress. Sol.:   In cubical element of strained material is acted on by stresses acting on only 2 pairs of parallel plane

Fixed Support: At such support beam end is not free to translate or rotate at the fixed end there are three reaction horizontal reaction ( R H ), a vertical reaction ( R V ), an

Q. Describe Elastic and plastic deformation? When a sufficient load is applied to a metal or other structural material, it will cause the material to change shape. This chang

what do you mean by law of belting and also explain the crowning of pulleys ?

Overhead Bridge Crane Figure below shows a jib crane. In this type of crane the hook can move in a circular path. A jib crane is preferred where lifting of the jobs is requ

Throttle Free Play Adjustmen: A smooth operation of the throttle ensures proper acceleration of the vehicle according to the requirement of the rider. If the throttle cable is kin

Introduction There was a power point presentation on Hydrogen fuel, Hydrogen production using electrolyzer and solar energy and solar energy.Topics like Alternative Energy Sys