Side
af
764
Forrige
Næste
OF ENGINEEBING FORMULÆ.
Weight of a Square Foot of Sheet Metals in ibs
Thickness Birmingham Wire Gauge.______________
Thickness B.W.G. Iron. (Copper. Brass. Thickness B.W.G. Iron. Copper. Brass.
30 •48 •550 •521 15 2-88 3-298 3'161
29 •52 •595 •579 14 3-32 3-801 3-644
28 ■56 •641 •615 13 3-80 4-351 4 170
27 •64 •733 •702 12 4-36 4-992 4’785
26 •72 1 -824 •790 11 4-80 5-496 5-268
25 •80 •916 •878 10 5-36 6-137 5'883
24 •88 11-008 ■966 9 5-92 6-778. 6'497
23 100 1'145 1'097 8 6'60 7*557 7-243
22 1-12 1-282 1-229 1 7'20 8’244 7-902
21 1-28 1'466 1-405 6 8-12 9-297 8-912
20 1-40 1'603 1-536 5 8-80 10’076 9’658
19 1'68 1-924 1-844 4 9-52 10-900 10-448
18 1-98 2-244 2-151 3 10-36 11-862 11 370
17 2’32 2’656 2'546 2 11-36 13'007 12’468
16 2-60 2'977 2’853 1 12-00 13’740 13’170
Weight of a* Superficial Foot of Plates, Different
___________________Metals, in lbs,__________________
Thick- ness Inches. Iron. Steel. Brass. Cop- per. Lead. Zinc. Thickness.
Inches. Milli- metres.
2-5 2’6 2,T 2-9 3-1 2’3 •0625 1-59
i 5 5-2 5’5 5-8 7-4 4-7 •125 3-17
?« 7-5 7-8 8-2 8-7 11-1 7-0 •1875 4-76
i 10 10-4 11-0 11'6 14-8 9-4 •25 6-35
A 12-5 13 13-7 14-5 18’5 11’7 •3125 7*94
t 15 15’6 16-4 17-2 22’2 14-0 •375 9-52
A 17’5 18-2 19-2 20-0 25-9 16-4 •4375 11-11
i 20 20-8 21-9 22’9 29-5 18 • 7 •5 12-7
22'5 23’4 24-6 25-7 33-2 21-1 •5625 14’29
25 26 27•i 28-6 36’9 23-4 •625 15-87
JL1 27-5 28'6 30-1 31*4 40-6 25-7 •6875 17’46
’ i 30 31-2 32’9 34’3 44’3 28-1 •75 19-05
X.3. 32-5 33-8 35'6 37-2 48-0 30-4 •8125 20-64
1 35 36-4 38-3 40-0 51-7 32*8 •875 22-22
1JL 37-5 39 41-2 42’9 55-4 35'1 •9375 23’81
1 40 41-6 43’9 45-8 59-1 37-5 1-000 25-4