Description

Manganese bronze is bright gold in color and can be cast centrifugally into refractory molds. Composition includes 58.25% copper and various amounts of zinc, iron, manganese, aluminum and tin.

Form: Casting grain
Metal type: Manganese bronze
Metal color: Yellow
Solidus temperature: 1,700°F (927°C)
Cast temperature: 2,100°F (1,149°C)
Density: 8.3
Country of origin: United States

please note: This product contains lead, a chemical known to the State of California to cause cancer, birth defects or other reproductive harm. This product should not be used in jewelry or other items intended for children under the age of 12.

Cast temperature is approximate; adjust for your particular alloy and application.

How To Determine Metal Weight for Wax Trees: Knowing how to determine the correct metal weight for each wax tree before you cast ensures that you melt the right amount of metal for your cast, making your casting process more cost-effective and more reliable.

SPECIFIC GRAVITIES:

24KY = 19.32

18KY = 15.5814KY = 13.07

10KY = 11.57

Fine silver = 10.49

Sterling = 10.36

Platinum = 21.54

Caster's brass chunks = 8.4

Caster's white bronze chunks = 8.1

Ancient bronze = 8.8Yellow bronze = 8.4

Manganese bronze = 8.3

Nickel silver = 8.8

Alpaca = 8.6

Step 1 First, weigh your wax models along with main and gate sprues. Then add an additional 10% to account for your button.

Step 2 Multiply that total by the specific gravity of the metal you're casting (see table above for a general guideline).

Example: For a 5-gram wax model, add 0.5 (10% of 5g) to get a total wax weight of 5.5g. For a 14KY gold casting, multiply 5.5g x 13.07 s.g. The amount of 14KY gold needed for this tree is 71.89 grams.^

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