6139. Weight of Copper and Lead

6139. Weight of Copper and Lead.

Weight of a Square Foot of Copper and Lead in pounds. from 1/32 to 1/2 inch in thickness.

6139 Weight of Copper and Lead 75

6141. Weight of Sheet Iron

6141. Weight of Sheet Iron.

Weight of a Square Foot of Sheet Iron in pounds avoirdupois, the thickness being the number on the wire gauge. No 1 is 5/16 of an inch; No. 4, 1/4; No. 11, 1/8, etc..

No. on Wire Gauge.

Pounds Avoir.

No. on Wire Gauge.

  

Pounds Avoir.

1 ............

.12.5

12......

  

.4.62

2 ............

.12.

13......

  

.4.31

3 ............

.11.

14......

  

.4.

4 ............

.10.

15......

  

.3.95

5 ............

. 9.

16......

  

.3.

6 ..........

. 8.

17......

  

.•2.5

7 ............

. 7.5

18......

  

.2.18

8 ............

. 7.

19......

  

.1.93

9 ............

. 6.

20......

  

.1.62

10............

. 5.68

21......

  

.1.5

11............

. 5.

22......

  

.1.37

6142. Weight of Boiler Iron

6142. Weight of Boiler Iron.

Weight of a Square Foot of Boiler Iron, from 1/8 inch thick, in pounds.

6142 Weight of Boiler Iron 76

6143. Properties of Metals

6143. Properties of Metals.

METALS.

Weight of a

Cubic Inch

In Lbs.

Specific Gravity.

Weight or a

Cubic Foot in Lbs.

Tenacity in Lbs. per Square Inch.

Crushing Force in Lbs. per sq.Inch.

Melting point. Fahr.

Expansion between 32o & 212°

Conducting power.

Specific Heat.

Aluminum......

.092

2.56

160

    

*1800°

      

Antimony, cast..

.242

6.7

418

1,066

  

810°

.0011

  

.0507

Bismuth

.35

9.82

605

3,250

  

497°

.0014

  

.0288

Brass, cast......

.3

8.4

525

17,978

10,300

1869°

.002

    

" wire......

  

8.5

531

49,000

          

Copper, cast.....

.32

8.89

555

19,072

11,700

1996°

.0017

  

.0949

" sheet____

  

8.95

559

33,000

      

898

  

" wire.....

  

9.

562

61,000

          

Gold

.7

19.25

1203

20,400

  

2016°

.0016

1000

.0298

Gun metal

.3

8.4

525

36,000

          

Iron, wrought bar

.28

7.7

481

60,000

38,000

  

.0012

347

.1100

" Swedish-----

  

7.6

475

70,000

          

" wire

      

85,000

          

" sheet

.26

7.18

448

19,000

92,000

2786°

.0011

    

Lead, cast.......

.41

11.35

709

1,824

7,000

612°

.0028

180

.0293

" sheet......

      

3,328

          

Mercuty

.49

13.56

847

    

—39°

.016

  

.0330

Silver...........

.38

10.47

654

41,000

  

1873°

.0019

973

.0557

Steel............

.282

7.8

487

120,000

  

2500°

.0011

    

" puddled___

  

7.78

485

80,000

          

Tin ...

.263

7.29

455

5,000

15,000

442°

.0021

304

.0514

Zinc

.253

7.

437

8,000

  

773°

.0029

363

.0927

 

* Approximate; no well-authenticated experiments on Aluminum.