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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