Modern Machine-Shop Practice, Volumes I and II

by Joshua Rose

Below is given the Washburn and Moen Manufacturing Company’s music wire-gauge.

SIZES OF THE NUMBERS OF STEEL MUSIC
WIRE-GAUGE.

No. of Gauge.	Size of each No. in decimal parts of an inch.	No. of Gauge.	Size of each No. in decimal parts of an inch.
12	.0295	21	.0461
13	.0311	22	.0481
14	.0325	23	.0506
15	.0343	24	.0547
16	.0359	25	.0585
17	.0378	26	.0626
18	.0395	27	.0663
19	.0414	28	.0719
20	.043	——	——

These sizes are those used by the Washburn and Moen Manufacturing Company, of Worcester, Mass., manufacturers of steel music wire.

In the following table is the French Limoges wire-gauge.

Number on gauge.	Diameter, millimètre.	Inch.	Number on gauge.	Diameter, millimètre.	Inch.
0	.39	.0154	13	1.91	.0725
1	.45	.0177	14	2.02	.0795
2	.56	.0221	15	2.14	.0843
3	.67	.0264	16	2.25	.0886
4	.79	.0311	17	2.84	.112
5	.90	.0354	18	3.40	.134
6	1.01	.0398	19	3.95	.156
7	1.12	.0441	20	4.50	.177
8	1.24	.0488	21	5.10	.201
9	1.35	.0532	22	5.65	.222
10	1.46	.0575	23	6.20	.244
11	1.68	.0661	24	6.80	.268
12	1.80	.0706

The following table gives the Birmingham wire-gauge for rolled sheet silver and gold.

Gauge number.	Thickness.	Gauge number.	Thickness.
	Inch.		Inch.
1	.004	19	.064
2	.005	20	.067
3	.008	21	.072
4	.010	22	.074
5	.013	23	.077
6	.013	24	.082
7	.015	25	.095
8	.016	26	.103
9	.019	27	.113
10	.024	28	.120
11	.029	29	.124
12	.034	30	.126
13	.036	31	.133
14	.041	32	.143
15	.047	33	.145
16	.051	34	.148
17	.057	35	.158
18	.061	36	.167

The following table gives the gauge thickness of Russia sheet iron,[25] the corresponding numbers by Birmingham wire gauge, and the thicknesses in decimal parts of an inch.

[25] This iron comes in sheets 28 × 56 inches = 10.88 square feet of area.