Module 5 Non-Ferrous Alloys Objective Three

Question 1

Wrought copper alloys: 100-155

Answer 1

commercial coppers

Question 2

Wrought copper alloys: 162-199

Answer 2

high copper alloys

Question 3

Wrought copper alloys: 200-299

Answer 3

copper zinc alloys (brasses)

Question 4

Wrought copper alloys: 300-399

Answer 4

copper-zinc-lead alloys (leaded brasses)

Question 5

Wrought copper alloys: 400-499

Answer 5

copper-zinc-tin alloys (tin brasses)

Question 6

Wrought copper alloys: 500-529

Answer 6

copper-tin alloys (phosphor bronzes)

Question 7

Wrought copper alloys: 532-548

Answer 7

copper-tin-lead alloys (leaded phosphor bronzes)

Question 8

Wrought copper alloys: 600-642

Answer 8

copper-aluminium alloys (aluminium bronzes)

Question 9

Wrought copper alloys: 647-661

Answer 9

copper-silicon alloys (silicon bronzes)

Question 10

Wrought copper alloys: 667-699

Answer 10

miscellaneous copper zinc alloys

Question 11

Wrought copper alloys: 700-725

Answer 11

copper-nickel alloys

Question 12

Wrought copper alloys: 732-799

Answer 12

copper-nickel-zinc alloys (nickel silvers)

Question 13

cast copper alloys: 833-838

Answer 13

red brasses and leaded red brasses

Question 14

cast copper alloys: 842-848

Answer 14

semired brasses and leaded semired brasses

Question 15

cast copper alloys: 852-858

Answer 15

yellow brasses and leaded yellow brasses

Question 16

cast copper alloys: 861-868

Answer 16

manganese and leaded manganese bronzes

Question 17

cast copper alloys: 872-879

Answer 17

silicon bronzes and silicon brasses

Question 18

cast copper alloys: 902-917

Answer 18

tin bronzes

Question 19

cast copper alloys: 922-929

Answer 19

leaded tin bronzes

Question 20

cast copper alloys: 932-945

Answer 20

high leaded tin bronzes

Question 21

cast copper alloys: 947-949

Answer 21

nickel-tin bronzes

Question 22

cast copper alloys: 952-958

Answer 22

aluminium bronzes

Question 23

cast copper alloys: 962-966

Answer 23

copper nickels

Question 24

cast copper alloys: 973-978

Answer 24

leaded nickel bronzes

Question 25

Low brass

Answer 25

80cu/20Zn uses: architectural, ornamental

Question 26

Cartridge Brass

Answer 26

70Cu/30Zn uses: munitions, tubing, hardware

Question 27

Yellow Brass

Answer 27

65Cu/35Zn uses: cold forming, screws, springs

Question 28

Muntz Metal

Answer 28

60Cu/40Zn uses: Architectural, condenser tubes

Question 29

Free Cutting Brass

Answer 29

61. 5Cu/35.5Zn/1Pb/3Mn

uses: screw machine parts

Question 30

Admiralty Brass

Answer 30

71Cu/28Zn/1Sn

Uses: condenser tubes (salt water), heat exchangers

Question 31

Naval Brass

Answer 31

61Cu/38Zn/1Sn/1Pb

uses: condenser tubes

Question 32

Alpha Brasses

Answer 32

<36% Zinc and form a single phase microstructure with all of the zinc in solid FCC solution

Question 33

Beta Brasses

Answer 33

> 36% Zinc with both FCC and HCP phases

Question 34

Tin (Sn) Brasses

Answer 34

small tin additions improve strength and corrosion resistance (especially against salt water)

Question 35

Leaded (Pb) Brasses

Answer 35

0.5-4.0% Pb to improve machinability

Question 36

Copper/Tin alloys (True Bronzes)

Answer 36

up to 12% Sn increases strength, phosphorous increases hardness and strength

Question 37

Aluminium Bronzes/Silicon Bronzes

Answer 37

high abrasion, but excellent wear resistance

Question 38

Cupronickels (copper/nickel alloys)

Answer 38

up to 30% nickel, almost immune to stress corrosion cracking and exhibit high oxidation resistance in steam and moist air