Designation
| Name |
The value |
| Designation GOST Cyrillic |
М2к |
| Designation GOST Latin |
M2k |
| Transliteration |
M2k |
| By chemical elements |
Cu2к |
Description
Copper M2K is used: as a feedstock for the production of cast and deformed semi-finished products from copper and copper alloys.
Note
The copper cathode.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare, and their alloys |
В51 |
GOST 546-2001, GOST 859-2001 |
Chemical composition
| Standard |
S |
P |
Ni |
Fe |
Cu |
As |
Zn |
Sn |
Sb |
Pb |
Bi |
O |
Ag |
| GOST 859-2001 |
≤0.01 |
≤0.002 |
≤0.003 |
≤0.005 |
≥99.93 |
≤0.002 |
≤0.004 |
≤0.002 |
≤0.002 |
≤0.005 |
≤0.001 |
≤0.03 |
≤0.003 |
Cu is the basis.
Mechanical properties
| Section, mm |
sT|s0,2, MPa |
σU, MPa |
d5, % |
HB, MPa |
| Copper cathodes |
|
90-150 |
200-250 |
≥60 |
≥45 |
|
300-450 |
400-490 |
≥6 |
≥110 |
Description mechanical marks
| Name |
Description |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σU |
Limit short-term strength |
| d5 |
Elongation after rupture |
| HB |
Brinell hardness number |
Physical characteristics
| Temperature |
Е, HPa |
r, kg/m3 |
l, W/(m · °C) |
R, Mr. · m |
С, J/(kg · °C) |
| 20 |
132 |
8940 |
387 |
178 |
390 |
A description of the physical symbols
| Name |
Description |
| Е |
The normal elasticity modulus |
| r |
Density |
| l |
Coefficient of thermal conductivity |
| R |
UD. the resistivity |