Table 14.11. Typical Brazing Filler Metal Consumption

Tube, nominal or standard size, inchesFiller metal length, inchesAverage weight per 100 joints, pounds*
116 inch wire18 in x .050 in rod332 inch wire18 inch wire
14 12 14 14 18 .04
38 58 38 38 14 .06
12 118 58 12 38 .10
58 158 78 58 12 .15
34 214 118 1 58 .21
1 312 134 158 78 .32
114 412 214 2 114 .42
112 - 3 258 112 .56
2 - 434 438 212 .90
212 - 612 578 338 1.22
3 - 858 778 412 1.64
312 - 1112 1012 578 2.18
4 - 1478 1312 758 2.81
5 - 2258 2012 1158 4.30
6 - 3112 2812 16 5.97
8 - 5312 4812 2738 10.20
10 - 6714 61 3414 12.77
12 - 9012 82 4618 17.20

* The amount of filler metal indicated is based on an average two-thirds penetration of the cup and with no provision for a filler. For estimating purposes, actual consumption may be two to three times the amounts indicated in this table, depending on the size of joints, method of application and level of workmanship.

NOTE:
1090 inches of 116-inch wire = 1 pound
534 inches of 18-inch x .050-inch rod = 1 pound
484 inches of 332-inch wire = 1 pound
268 inches of 18-inch wire = 1 pound