Page:Sheet Metal Drafting.djvu/242

TABLE A

U. S. Standard Gage for Sheet and Plate Iron and Steel, 1893

Number of Gage.		Approximate Thickness in Fractions of an Inch.		Approximate Thickness in Decimal Parts of an Inch.		Weight per Square Foot in Ounces.		Weight per Square Foot in Pounds.
0000000		1	/2	0	.5	320		20
000000		15	/32	0	.4688	300		18	.75
00000		7	/16	0	.4375	280		17	.50
0000		13	/32	0	.4063	260		16	.25
000		3	/8	0	.375	240		15
00		11	/32	0	.3438	220		13	.75
0		5	/16	0	.3125	200		12	.50
1		9	/32	0	.2813	180		11	.25
2		17	/64	0	.2656	170		10	.625
3		1	/4	0	.25	160		10
4		15	/64	0	.2344	150		9	.375
5		7	/32	0	.2188	140		8	.75
6		13	/64	0	.2031	130		8	.125
7		3	/16	0	.1875	120		7	.5
8		11	/64	0	.1719	110		6	.875
9		5	/32	0	.1563	100		6	.25
10		9	/64	0	.1406	90		5	.625
11		1	/8	0	.125	80		5
12		7	/64	0	.1094	70		4	.375
13		3	/32	0	.938	60		3	.75
14		5	/64	0	.0781	50		3	.125
15		9	/128	0	.0703	45		2	.813
16		1	/16	0	.0625	40		2	.5
17		9	/160	0	.0563	36		2	.25
18		1	/20	0	.05	32		2
19		7	/160	0	.0438	28		1	.75
20		3	/80	0	.0375	24		1	.50
21		11	/320	0	.0344	22		1	.375
22		1	/32	0	.0313	20		1	.20
23		9	/320	0	.0281	18		1	.125
24		1	/40	0	.025	16		1
25		7	/320	0	.0219	14		0	.875
26		3	/160	0	.0188	12		0	.75
27		11	/640	0	.0172	11		0	.688
28		1	/64	0	.0156	10		0	.625
29		9	/640	0	.0141	9		0	.563
30		1	/80	0	.0125	8		0	.5
31		7	/640	0	.0109	7		0	.438
32		13	/1280	0	.0102	6	12	0	.406
33		3	/320	0	.0094	6		0	.375
34		11	/1280	0	.0086	5	12	0	.344
35		5	/640	0	.0078	5		0	.313
36		9	/1280	0	.007	4	12	0	.281
37		17	/2560	0	.0066	4	14	0	.266
38		1	/160	0	.0063	4		0	.25