Copper wire
Copper is popular metal that has been used worldwide since ancient times. This golden pink alloy is much more abundant in earth’s crust than gold, silver and iron.
General characteristics
Ductile copper metal differs from other metals in following series of properties:
- High heat and electrical conductivity;
- Softness;
- Tenacity;
- Easy rolling and pulling;
- Melting point 1083 °C;
- Resistance to corrosion;
- Diamagnetism (magnetization against direction of external magnetic field), etc.
Such characteristics have made copper popular since the copper and bronze ages.
Application area
Scope of use of copper products is very wide. Among most popular distinguish following applications of this metal:
- Cable production;
- Gas, steam and water pipes;
- Heat pipes;
- Coolers for cooling computer devices;
- Cooling and heating systems;
- Heat exchangers;
- Architecture;
- Electric wires;
- Electric motors, etc.
Today it easy to find copper and alloys from this metal in form of wire, sheets, tapes, ingots and other products that can be converted into necessary products and parts.
Steel grades
Among of copper grades, most popular alloys are BrB2, BrBNT1,9, BrKMc3−1 and others. Here are chemical compositions of these alloys:
Alloy grades |
Chemical composition, % |
Standard | ||||||||||||||||||||||||||
GOST |
Wnr |
Uns |
Fe |
Cu+Ag |
Si |
Mg |
Sn |
Bi |
Mn |
Co |
Be |
Ti |
Cr |
Cu |
Zn |
Ni |
Sb |
Zr |
Al |
Pb |
As |
P |
C |
S |
O |
Ni + Co |
Impurities | |
BrB2 |
2.1447 |
C17200 |
<0.15 |
<0.15 |
1.8−2.1 |
96.9−98 |
0.2−0.5 |
<0.15 |
<0.005 |
GOST 18175−78 | ||||||||||||||||||
BrBNT1,9 |
- |
- |
<0.15 |
<0.15 |
1.85−2.1 |
0.1−0.25 |
96.295−97.85 |
0.2−0.4 |
<0.15 |
<0.005 |
<0.5 |
GOST 1789−13 | ||||||||||||||||
BrKMc3−1 |
- |
- |
<0.3 |
2.7−3.5 |
<0.25 |
1−1.5 |
94−96.3 |
<0.5 |
<0.2 |
<0.03 |
GOST 18175−78 | |||||||||||||||||
BrH1 |
- |
- |
0.4−1.2 |
98.5−99.6 |
GOST 18175−78 | |||||||||||||||||||||||
BrHCr |
2.1293 |
C18400 |
<0.01 |
<0.002 |
0.4−1 |
98.855−99.57 |
<0.01 |
<0.03 |
0.03−0.08 |
<0.003 |
<0.01 |
GOST 614−97 | ||||||||||||||||
M2 |
- |
C12500 |
<0.05 |
> 99.593 |
<0.05 |
<0.002 |
<0.2 |
<0.005 |
<0.01 |
<0.01 |
<0.01 |
<0.07 |
GOST 859−2001 | |||||||||||||||
HMZhMc 28−2,5−1,5 |
2.4360 |
N04400 |
2−3 |
<0.05 |
<0.1 |
<0.002 |
1.2−1.8 |
27−29 |
65.213−69.8 |
<0.002 |
<0.003 |
<0.01 |
<0.01 |
<0.2 |
<0.01 |
<0.6 |
GOST 1525−15 | |||||||||||
- |
2.4375 |
- |
0.5−2 |
<0.5 |
<1.5 |
<1 |
0.3−1 |
27−34 |
<63 |
2.2−3.5 |
<0.2 |
<0.015 |
DIN 17743 | |||||||||||||||
MNC15−20 |
- |
C75400 |
<0.3 |
<0.15 |
<0.05 |
<0.002 |
<0.3 |
60.6−68.5 |
18−22 |
<0.002 |
<0.02 |
<0.01 |
<0.005 |
<0.03 |
<0.01 |
13.5−16.5 |
GOST 492−2006 | |||||||||||
Such alloys have good casting and technological properties and are easy to process.
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Mass units
| Kilogram (kg) | Metric ton (mt) | Pound (lb) |
|---|---|---|
| 1 000 | 1 | 2 200.62 |
| 1 | 0.001 | 2.20 |
| 0.4536 | 1 |