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
how to culculate stress in unsymmetrical bending

define spcific steam consumption

Consider a pressure vessel as shown in the figure. The cylinder has a longitudinal axis of rotational symmetry and is also symmetric with respect to a plane passing through it

Tunnels: Tunnels become unavoidable for negotiating hills, where detours are costly. The tunnels in rock are not lined, but those in loose strata require a lining of cement c

EXPLANE PLZZ

hey ...!!!! i am looking for hydraulic car lift circuit diagram. can any 1 plzzz help me did this?

Metallurgy of Electron Beam Welding EBW is capable of joining a variety of materials in a broader thickness range than any other fusion welding process. This is being in

Q. Briefly explain Model scale design? Knowledge of dynamic similarity conditions enables evaluation of model scales. Almost alI the problems related to river hydraulics are ab

Q. What is Carbon steel? Carbon steel has long been used for handling concentrated sulphuric acid under ambient temperature and low velocity conditions. In service, a soft sul

validity on compressible and incompressible fluids