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Table 198. Mechanical Properties of Miscellaneous Alloys

Table 198. Mechanical Properties of Miscellaneous Alloys

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TABLE 198.-MECHANlCAL



LO



z



PROPERTIES O F MISCELLANEOUS ALLOYS (continued)



ri

I

VI

0



I

2



I



p

rn



In



Composition

percent



Condition



Density

g/cma



Modulus of

elasticity

kg/mm’



Proportional

limit

kg/mm2



Yield

strength

kg/mm2



Tensile

strength

kg/mmz



Pd-16.1; Pt-7.0; Ir-1.2;

Zn-.07



Strip, .006 in., w.-q. from

1290°F



...



Pt-9.3 ; Ag-.l ; Zn-.O2 ;

Ni-.Ol



Strip, .006 in., w.-q. from

1290°F



...



7,000



Ag-10.0; Pt-6.l; (3-5.9;

Ir-.l



Rod, & in. diam., cast, w.-q.

from 1290°F



...



7,700



Cable sheath, 1 in. 0.-d.

x Q in. wall, extruded,

aged 131 days a t r.-t.



...



...



...



...



Linotype :

Sb-11.5 ; Sn-4.4 ; Cw.08



Cast



...



...



...



...



8.22



Monotype :

Sb-15.3 ; Sn-8.3



Cast



...



...



...



8.4



Bi-.065; Cu-.013; Sb-.0015



Cable sheafh, 2.87 in. 0.-d.

X .159 In. wall (ring

specimen)



...



...



...



...



1.34



Rod, extruded from 2 E in.

to 3 in. diam. at 350400°F

Cast, h.-t. and aged



1.77



4,290



9.48



...



...



4,570



...



Rod, 1 in. diam., hot-rolled



...



4,640



...



12,240



Lead alloys

Sb.80



Magnesium alloys

A1-4.40 : Mn-26

AI-10; Mn>.l ; Si<.5 ;

Zn<.3

CU-13

Manganese alloys

Cu-18; Ni-10



....



14,050



35.1

6.32

15.8



5.2



...



(continued)



E



CQ



...



61.8



Elongation

percent



4.6(8 in.)



Endurance

limit

kg/mma



...



Hardness

number



...



...

...



...



.722( 10‘)



v 10



9.0(2 in.)



...



21



4.0(2 in.)



...



22



...



24.6



24(8 in.)



...



33.7



18(3 in.)



3.09(rate

32(2.5 in.)

of strain)

.1 (in./in.)/min



47



...



...



3.9



27.4



16(8in.)



10.5(10*)



58



13.4

25.3

(2%offset)

...

27.4



2 ( 2 in.)



6.3

(5 x 10a)



69



2.5(4V/a)



...



...



6.5



,..



...



77.0



T A B L E 198.-MECHANICAL



P R O P E R T I E S O F MISC ELLA N EOU S A L L O Y S (concluded)



I

0



<

I?



Composition

percent



F



c)



4



g

I

-



g



Nickel alloys

A1-4.78: Mn-.26; C-.17;

Fe-.07 : Si-.05



Condition



Density

g/cm3



Modulus of

elasticity

kg/mm2



Proportional

limit

kg/mmz



Rod, i; in. diam., hot-rolled,

ann. 2 hr at 1650°F.

slowly cooled



.. .



21,500



Ni-80 ; Cr-13 ; Fe-rem.



Sheet ann.



...



21,800



...



Cr-20



Wrought



8.4



21,800



. ..



Cu-29; Fe-1.5; Si-1.25;

Mn.9; C-.2; S<.O15



Sand-cast



8.80



18,300



...



Ni-60; Cr-15; Mo-7;

Be-6-1.0 ; Fe-rem.



Quenched



8.3



15,500



. ..



Mo-30; Fe-5



Cast



9.24



21,600



.. .



Silver alloys

CU-5.75 ; Cd-1.75



Sand-cast



Tin allow

Sb-6.87: Cu-5.69 ; Pb.19;

Fe.03 ; As-.02



...



Cast



SblO.01; Cu-9.88; Pb.19; Cast

Fe.08



...



9.4



3.6



Yield

strength

kg/mm2



Tensile

strength

kg/mm2



18.75

61.6

(.Ol% offset)



...



55.0



44.5

77.4

(yld. pt.1

24.5

49.0

(.2% offset)



Elongation

percent



Endurance

limit

kg/mm*



Hardness

number



43 ( 4 v K a )



...



...



...



...



30( 10 in.)



...

...



...



30(2 in.)



...



140

195

190-230



88.0



30(4 in.)



53-58



6-9(2 in.)



...

...



9.9



20.7



40(2 in.)



...



73



41.8

(yld. pt.)

38.5-40.0

(yld. pt.)



6,120



...



5.76

(.2% off set)



8.4



5.2(10 diam.)



2.39



23



5,980



...



6.88

(.2% off set)



7.5



.6( 10 diam.)



2.32



27



T A B L E 199.-PHYSICAL



P R O P E R T I E S O F SOME SPECIAL-PURPOSE A L L O Y S



*



N

N



0

Composition

percent



Density



Resistivity

microhmscm



Temperature

coeff. of

resistance



Thermal

conductivity

cgs



Alloys for strength with lightness

Duralumiii (A 17 S)

Al 97, Cu 2.5, Mg .3.. 2.74

4.3



.37



Super duralumin (24 S)

A1 93, Cu 4.5, Mn .6

Mg 1.5 ........... 2.77



.29



Dow metal

Mg 92, Al 8.. ....... 1.81

Beryllium alloys

Beryllium t ........... 1.83



5.7



7200



70



50



7200



120



23



4.6

90-110



.O-2.5



81.



63.



1.26X1O3



C23-28



10-15



112.



63.



.30



115.



98.



1.33Xlo3



C37-42



12.7



.I6



49.



21.



1 . 1 2109

~



C85-95



7.0



03



Be 2.60, Ni 1.10, Bal

Cu ............... 7.6



7.8



.18



Be 2.0, Co .5, Bal Cu

cast .............. 8.1



6.5



.......... 8.21



Alloys f o r sealing t o glass

42% nickel iron 5

Fe 57, N i 42, Mn 1.. 8.1



wrought



30



Elongation

2 in.

percent



2.6X10'



.SO



Be 2.0, Co .3, Bal Cu



Hardness

number

Rockwell



Yield

strength

kg/mm?



18.7



3.4



.......... 8.75



Young's

modulus

kg/mm2



Tensile

strength

kg/mni'



35



.385



wrought



20-200"

12.9x10-0



13

4.3



Alloys t

Be .45, Co 2.6, Bal Ca



Thermal

expansion

per "C



20-200"

1 2 . 4 lo-'

~



20-200"

17~10-~



C38



.35-.50



~~



.



0-200

5.4x10-'



70.3



14.7X103



(Specific heat

cgs .12)



For reference, see footnote 5 5 , p. 187. For low-melting-point alloys, see Table 201; for special magnetic alloys, see Tables 470.476.

t Annealed and heat treated. -4 number of alloys with beryllium a r e made by different manufacturers with aliout these .same compqsiJions and properties.. These alloys

are valuable due to their endurance and wear resistance, for a noninagnetic mateial, and, in addition. good heat and electrical conductlvlty and corrosion resistance. Most

of the data a r e taken from a special :\merican Machinist report, McCraw-Hill.



(rori f i i r urd)



T A B L E 199.-PHYSICAL



E

.-.

v)



P ROPER TIES OF SOME SPECIAL-PURPOSE A LLOYS (continued)



S

-4

v)

0



z



Composition

percent



I



9

z



2

52



Ez



F



-,



-



P



Density



Chrom iron

Fe 70-72, Cr 28-30,

hln S . 8 .......... 7.8



Resistivity

microhmscm



...



Temperature

coeff. of

resistance



Thermal

conductivity,

cgs



...



..............



Yield

strength

kg/mm2



Young's

modulus

kgjmm?



Hardness

number

Rockwell



7.6



Dumet core

Ni 42, Fe 58, Cu 20-30

total weight . . . . . . . . . .



Miscellaneous

Constantin D

Cu 53.3, Ni 45, Mn 1,

Fe .6 ............. 8.4

Manganin 5

Cu 84, Mn 12, Ni 4 . . 8.5

Nichromc 8 *

59.9 Ni, 25 Fe, 15 Cr,

.1 C .............. 8.08

Invar

Fe 63.8, N i 36, C 2 . . 8.05



6.4



...



...



...



.06



...



20-100"

10.3X1O-'



15



49



8x10-'



44






18



100



4x10-'



12



81



1 . 0 8 lo-'

~



23



53.0



20.3x lo3



(Specific heat

cgs .15)



70



25.000



100



Radial 8.01oxlO-8

Axial 6.16.5)<10"



1.6



17.900



80



21.000



160 (Specific heat

cgs .12)



5 There a r e several alloys of ahout this same composition that are made by different manufacturers. They all have aLou1 the same characteristics.

Uses:

a



b

(I



a

f



8



b



Elongation

2 in.

percent



100-500"

4.2-5.4X lo-'



h



Sealmet



Tensile

strength

kg/nim?



20600"

11.4X10-'



Fernico

Fe 54, Ni 28, Co 18..



v)



Thermal

expansion

per "C



Heater and resistance.

Standard resistances.

I.ow thermal expansion.

Thermocouples.

Mirrors. is a n exceedingly hard untarnishable metal.

Mirrors'and reflecting gratings; takes good polish and does not tarnish easily.

.\n alloy sometimes used a s a getter for clearing off last traces of gas in a n evacuated vessel.

Used for making special casting and in a r t work.



(contirrrted)



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Table 198. Mechanical Properties of Miscellaneous Alloys

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