Handy Facts - Materials

What are the Constituent Metals in Metal Alloys?

Brass chiefly copper and zinc (copper predominating)
Bronze chiefly copper and tin (copper predominating)
Commercial Bronze A" Copper 88%, Zinc 12%
Gunmetal copper 90%, tin 10%
Phosphor bronze Copper 95%, tin 5% phosphorus trace
Nickel silver Copper 64%, nickel 10%, zinc 26%
Duralumin Aluminum 95%,copper 4%, manganese 0.5%, magnesium 0.5%
Babbit metal Tin 88.9%, copper 3.7%, antimony 7.4%
Wood's metal Bismuth 50%, lead 25%, tin 12.5%, cadmium 12.5%
Type metal (monotype) Lead 74%, antimony 16%, tin 10%
Type metal (foundry) Lead 62%, antimony 25%, tin 12%, copper 1%
Pewter Tin 90-98%, antimony 0.5-8%, copper 0.25-2.5%

Melting points

platinum 1772° C
iron
1535° C
nickel 1453° C
manganese 1244° C
copper 1083° C
gold 1063° C
silver 960.8° C
zinc 419.4° C
lead 327.5° C
tin 231.89° C

Ignition Temperatures

The following temperatures are required to ignite the different substances specified:
charcoal
660 degrees F
dry pine wood
800 degrees F
dry oak wood
900 degrees F
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