Contents


Gold

The story of gold
Standards of gold
International gold standards (Chart A)
Fineness of gold karats (Chart B)
The karat system
Gold alloying, general principles
    Color
    White golds
    Characteristics and heat treatment/
    annealing
Controlling finish
Handy & Harman gold alloys
Karat gold alloys (Chart C)
Calculating weights
Casting karat golds
General density for karat gold (Chart D)
Casting grain alloys (Chart E)
Casting grain designation (Chart F)
Design principles for jewelry casting
Gold filled, origin and advantages
    Weight of gold filled sheet (Chart G)
    Forms and applications of gold filled strip, tubing and wire
    Base metals most commonly used in gold filled
General reference tables
    Weight and conversion
    Round wire weight
    Unit sheet and wire weights
    Karat gold densities
    Fine gold value

Silver

The uses of silver
Sterling silver
Characteristics
Metallurgical facts
Controlling hardness and workability
Properties of silver alloys (Chart H)
Annealing
Controlling color and finish
Casting sterling silver
General reference tables
    Weight and conversion
     Round wire weight (B&S gauge)
     Round wire weight
     Unit sheet and wire weights
     Sterling sheet weight per square inch
     Sterling sheet weight in ounces per foot
     Sterling circles weight in ounces
     Weight of .001" thick sterling circles



Platinum

The story of platinum
Platinum in the jewelry industry
Casting platinum
Products

Soldering

Terminology
Six steps of soldering
Handy Flux as a temperature indicator
(Chart I)
Handy & Harman soldering materials
Karat gold solders (Chart J)
Silver solders (Chart K)
Fluxes and safety recommendations

Refining

Steps for recovering value from scrap
Precious metal determination

Handy & Harman Products

Gold products
Silver products
Platinum products
Soldering materials


General Tables

Fractions and decimal equivalents
Weights-the troy system
Pennyweights
Grains
Conversion figures
Weight equivalents, troy and avoirdupois
Specific gravity, melting points, weights
Temperature tables
How to determine weights
Comparative weights of equal volumes
Circles and squares, circumferences and areas Hardness conversion table

Glossary

The Handy & Harman Story