Interesting facts about copper
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Technical specifications.
Copper has been known to mankind since time immemorial. It combines high electrical and thermal conductivity, plasticity and corrosion resistance, has good casting qualities, is very technological. It is indispensable in electrical engineering, radio electronics and instrument making. On its basis, alloys are produced: brass, bronze and copper-nickel alloys.
Hydrogen Disease
If, in the presence of hydrogen, the copper part in which there is a nitrous oxide (Cu 2 O) is heated, then as a result of diffusion of hydrogen, the reduction reaction of Cu 2 O + H 2 → 2Cu + H 2 O begins. The resulting moisture vapor causes warping or cracking of the part.
Composition of copper grades GOST 859−66
The content of impurities is given in hundredths of a percent
| Make | Cu (min) | Bi | Sb | As | Fe | Ni | Pb | Sn | S | O2 | Zn | P | Ag | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M00 | 99.99 | 0, 5 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | - | 1 | 1 | - | 10 |
| M0 | 99.95 | 1 | 2 | 2 | 4 | 2 | 4 | 2 | 4 | 20 | 4 | 2 | 3 | 50 |
| M0b | 99.97 | 1 | 2 | 2 | 4 | 2 | 4 | 2 | 4 | 1 | 3 | 2 | 3 | thirty |
| Ml | 99.90 | 1 | 2 | 2 | 5 | 2 | 5 | 2 | 5 | 50 | 5 | - | 3 | 100 |
| Mlp | 99.90 | 1 | 2 | 2 | 5 | 2 | 5 | 2 | 5 | 10 | 5 | 40 | 3 | 100 |
| M2 | 99.70 | 2 | 5 | 10 | 50 | 200 | 10 | 50 | 10 | 70 | - | - | - | 300 |
| M2p | 99.70 | 2 | 5 | 10 | 50 | 200 | 10 | 50 | 10 | 10 | - | 40 | - | 300 |
| MH | 99.50 | 3 | 50 | 10 | 50 | 200 | 50 | 50 | 10 | 80 | - | - | - | 500 |
| МЗр | 99.50 | 3 | 50 | 50 | 50 | 200 | thirty | 50 | 10 | 10 | - | 40 | - | 500 |
| M4 | 99.0 | 5 | 200 | 200 | 100 | - | 300 | - | 20 | 150 | - | - | - | 1000 |
| AMF | The basis | 1 | 2 | 2 | 5 | 2 | 5 | 2 | 5 | 50 | 5 | 30−160 | 3 | 100 |
Delivery, price
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