Table 3

 

Unit Sheet and Wire Weights

 

 

 

One Square Inch of

Metal .001" Thick

One Foot of

Round Wire

.001" Dia.

 

Tr. Ozs.

Tr. Dwts.

         Tr. Dwts.

24K Gold

.010200

.20400

.001923

18K Gold, Green

.008375

.16750

.001579

18K Gold, Yellow

.008211

.16422

.001548

18K Gold, White

.007712

.15424

.001454

14K Gold, Green

.007482

.14964

.001410

14K Gold, Yellow

.006885

.13770

.001298

14K Gold, White

.006642

.13284

.001252

l0K Gold, Yellow

.006096

.12192

.001149

l0K Gold, White

.005832

.1 1664

.001099

l0K Gold, Green

.005810

.l 1620

.001095

 

To determine sheet weight:

To find the weight of a piece of any of the above metals of any given

size and thickness, multiply the weight of one square inch of the

metal .001" thick as shown above, by the decimal thickness desired,

and then multiply this product by the number of square inches in the

given piece. The result will be the troy weight of the piece.

For example: required-the weight of a piece of 14K yellow gold

3" x 4;' gauge .020:' From the table one square inch of 14K yellow gold

.001, or one thousandth of an inch thick, weighs.13770 dwt., there-

fore, 1 sq. inch .020 or 20 thousandths would weigh twenty times

13770 or 2.7540 dwt., and since there are 3 x 4 or 12 sq. inches in the

piece, the total weight would be 12 x 2.7540 dwt., or 33.048 dwts.

 

To determine wire weight:

Take the number of thousandths in the diameter of the wire whose

weight \,on wish to determine, square that figure, (multiply it by

itself) and multiply- the product by the weight of 1 ft. of the corresponding metal shown in the above table. The result will be the

weight of one foot of the ,wire. To find the weight of the entire piece

multiply the weight of one foot by the number of feet in the piece.

   For example: To find weight of 10 feet of round 18K white gold wire

020" dia., multiply 20 X 20 = 400

     18K white gold wire weighs .001454 dwts. (see table)

     400 X .001454 = .5816 dwts., the weight of one foot of wire

      10 X .5816 --- 5.8160 dwts., the weight of ten feet

   For square wire the process is the same, but square wire is 1.27324

times as heavy as round wire of the same gauge.