METAL CONVERSION CHART

                Use this conversion chart to convert the weight of wax to metal and one metal to another

for casting or for calculating a price.

	Platinum	F. Gold	18K	14K	10K	Sterling	Wax
Platinum	1.00	0.90	0.70	0.60	0.53	0.48	21.45
F. Gold	1.11	1.00	0.78	0.67	0.59	0.54	19.32
18K	1.42	1.28	1.00	0.85	0.76	0.68	15.50
14K	1.66	1.50	1.17	1.00	0.89	0.80	13.40
10K	1.88	1.69	1.32	1.13	1.00	0.90	11.60
Sterling	2.06	1.87	1.46	1.25	1.11	1.00	10.40
Wax	21.45	19.32	15.50	13.40	11.60	10.40	1.00

                                       
               Example: Convert wax to metal

               Wax model weight   x   factor of metal wanted    =   weight of metal wanted

                1 DWT. (wax)    x    10.40 (sterling factor)  =   10.40 DWT.    sterling

 

              Example: Finding weight of an object in a different metal than it is now.

 

              Model weight in metal     x   factor of metal wanted    =   weight of metal wanted

              Sterling Ring 10 DWT.    x   1.25 (14K factor)           =    12.50 DWT.    14K

 

              This chart intended to provide a good indication within a reasonable tolerance.

 

              Use this conversion chart to convert the weight of one metal to another.

                                 Models in non-ferrous metals to sterling silver.

Weight of model in		Factor		Weight in sterling silver
Lead	x	.917	=	Weight in sterling silver
Pewter	x	1.09	=	Weight in sterling silver
Copper	x	1.16	=	Weight in sterling silver
Brass / Bronze	x	1.18	=	Weight in sterling silver
Tin	x	1.43	=	Weight in sterling silver
Zinc	x	1.46	=	Weight in sterling silver
Aluminum	x	3.85	=	Weight in sterling silver
Magnesium	x	5.98	=	Weight in sterling silver

 

             Example:

             Weight of model in metal   x   factor of the metal   =   weight in S.S.

             Zinc (model)   10 DWT.      x    1.46  (factor)         =   14.6 DWT.  S.S.

 

             This chart intended to provide a good indication within reasonable tolerance.  

 

             Use this conversion chart to convert the weight of one metal to another.

                                   Models in non-ferrous metals to 10K gold.

Weight of model in		Factor		Weight in 10K gold
Lead	x	1.02	=	Weight in 10K gold
Pewter	x	1.22	=	Weight in 10K gold
Copper	x	1.30	=	Weight in 10K gold
Brass / Bronze	x	1.32	=	Weight in 10K gold
Tin	x	1.59	=	Weight in 10K gold
Zinc	x	1.62	=	Weight in 10K gold
Aluminum	x	4.30	=	Weight in 10K gold
Magnesium	x	6.67	=	Weight in 10K gold

 

             Example:

             Weight of model in metal   x   factor of the metal   =   weight in 10K gold

             Zinc (model)  10 DWT.      x   1.62  factor)         =   16.2  DWT.  in 10K gold

 

             This chart intended to provide a good indication within reasonable tolerance.

 

             Use this conversion chart to convert the weight of one metal to another.

                            Models in non-ferrous metals to 14K gold

Weight of model in		Factor		Weight in 14K gold
Lead	x	1.18	=	Weight in 14K gold
Pewter	x	1.41	=	Weight in 14K gold
Copper	x	1.50	=	Weight in 14K gold
Brass / Bronze	x	1.52	=	Weight in 14K gold
Tin	x	1.84	=	Weight in 14K gold
Zinc	x	1.88	=	Weight in 14K gold
Aluminum	x	4.96	=	Weight in 14K gold
Magnesium	x	7.70	=	Weight in 14K gold

             Example:

             Weight of model in metal    x   factor of the metal     =   weight in 14K gold

             Zinc (model)   10 DWT.       x    1.88  (factor)           =   18.8 DWT.   in 14K gold

 

             This chart intended to provide a good indication within reasonable tolerance.

 

              Use this conversion chart to convert the weight of one metal to another.

                                   Models in non-ferrous metals to 18K gold.

Weight of model in		Factor		Weight in 18K gold
Lead	x	1.37	=	Weight in 18K gold
Pewter	x	1.63	=	Weight in 18K gold
Copper	x	1.74	=	Weight in 18K gold
Brass / Bronze	x	1.76	=	Weight in 18K gold
Tin	x	2.13	=	Weight in 18K gold
Zinc	x	2.17	=	Weight in 18K gold
Aluminum	x	5.74	=	Weight in 18K gold
Magnesium	x	8.91	=	Weight in 18K gold

 

             Example:

             Weight of model in metal   x   factor of the metal    =   weight in 18K gold

             Zinc (model)   10 DWT.      x    2.17  (factor)          =   21.7  DWT.  in 18K gold

 

             This chart intended to provide a good indication within reasonable tolerance.

               Use this conversion chart to convert the weight of one metal to another.

                            Models in non-ferrous metals to platinum

 

Weight of model in		Factor		Weight in platinum
Lead	x	1.89	=	Weight in platinum
Pewter	x	2.26	=	Weight in platinum
Copper	x	2.40	=	Weight in platinum
Brass / Bronze	x	2.44	=	Weight in platinum
Tin	x	2.94	=	Weight in platinum
Zinc	x	3.00	=	Weight in platinum
Aluminum	x	7.94	=	Weight in platinum
Magnesium	x	12.33	=	Weight in platinum

          Example:

               Weight of model in metal    x   factor of the metal    =   weight in platinum

               Zinc (model)   10 DWT.      x    3.00  (factor)           =   30.0 DWT.   in platinum

 

               This chart intended to provide a good indication within reasonable tolerance.

 

               Zinc (model)   10 DWT.      x    3.00  (factor)           =   30.0 DWT.   in platinum

 

               This chart intended to provide a good indication within reasonable tolerance.

 

 

 

 

                                               SPECIFIC GRAVITY CHART

 

 

Material	Specific gravity
Wax	1.00
Aluminum	2.70
Magnesium	1.74
Pewter	9.50
Brass / Bronze	8.80
Copper	8.92
24K Gold (fine gold)	19.32
18K Gold	15.50
14K Gold	13.40
10K Gold	11.60
Platinum	21.45
Silver (fine silver)	10.49
Sterling Silver	10.40
Tin	7.29
Zinc	7.14
Lead	11.34

 

 

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