Copper M2
Designation
| Name |
The value |
| Designation GOST Cyrillic |
М2 |
| Designation GOST Latin |
M2 |
| Transliteration |
M2 |
| The chemical elements |
Cu2 |
Description
Copper M2 is used: for the production of high quality semi-finished products and alloys, copper-based pressure treated; for the manufacture of products of cryogenic equipment; round drawn thin-walled tubes; drawn rectangular tubes, intended for the manufacture of waveguides; drawn capillary tubes used in propose hypersound or ultras and instrumentation and refrigeration equipment; cold-rolled foil and strip, cold-rolled and hot-rolled sheets and plates of General purpose; radiator tape, is intended for manufacturing cooling tubes and radiator fins.
Note
M2 copper produced by fire refining and smelting waste and scrap of copper.
Standards
| Name |
Code |
Standards |
| Tapes |
В54 |
GOST 1018-77, GOST 20707-80, GOST 1173-2006 |
| Bars |
В55 |
GOST 1535-2006 |
| Pipes from non-ferrous metals and alloys |
В64 |
GOST 2624-77, GOST 11383-75, GOST 20900-75, GOST 617-2006, OST 4.021.130-92 |
| Sheets and stripes |
В53 |
GOST 495-92, GOST 5638-75, OST 4.021.094-92 |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 859-2001, OST 4.021.009-92 |
Chemical composition
| Standard |
S |
Ni |
Fe |
Cu |
As |
Sn |
Sb |
Pb |
Bi |
O |
| GOST 617-2006 |
≤0.01 |
≤0.2 |
≤0.05 |
The rest |
≤0.01 |
≤0.05 |
≤0.005 |
≤0.01 |
≤0.002 |
≤0.07 |
Cu is the basis.
According to GOST 1173-2006, GOST 1535-2006 and GOST 859-2001 the total content of Cu + Ag is ≥ 99.70%.
Mechanical characteristics
| Section, mm |
σB, MPa |
d5, % |
d10 |
Brinell hardness number, MPa |
HV, MPa |
| The tape is supplied according to GOST 1018-77 (samples) |
| 0.35-1.86 |
≥200 |
- |
≥36 |
- |
- |
| Ribbons and leaves (≥0.5 mm) in the delivery condition (transverse specimens) |
| - |
≥200 |
- |
≥30 |
- |
- |
| - |
200-260 |
≥45 |
≥36 |
≥55 |
40-65 |
| - |
240-310 |
≥15 |
≥12 |
≥75 |
65-95 |
| - |
≥290 |
≥6 |
≥3 |
≥95 |
90-110 |
| Bars according to GOST 1535-2006 in the delivery condition (longitudinal samples) |
| - |
≥190 |
≥35 |
≥30 |
≥35 |
≥40 |
| - |
≥200 |
≥40 |
≥35 |
≥40 |
40-65 |
| - |
≥240 |
≥15 |
≥10 |
≥60 |
70-95 |
| - |
≥270 |
≥8 |
≥5 |
≥70 |
90-115 |
| The pulled capillary tube in the state of delivery according to GOST 2624-77 (samples) |
| - |
≥200 |
≥40 |
≥35 |
- |
- |
| - |
≥250 |
≥5 |
≥4 |
- |
- |
| Pipe humanitariannet and extruded in the state of delivery according to GOST 617-2006 (in cross-section is specified outside diameter, in brackets are the values for pipes with improved plasticity and strength) |
| ≤360 |
≥200 (210) |
≥38 |
≥35 (40) |
- |
≤55 |
| ≤360 |
≥240 (270) |
≥10 |
≥8 (8) |
- |
- |
| ≤200 |
≥190 |
≥32 |
≥30 |
- |
≤80 |
| 200 |
≥180 |
≥32 |
≥30 |
- |
- |
| ≤360 |
≥280 (310) |
- |
- |
- |
90-135 |
| Solid cold-rolled foil of 0.015-0.050 mm in the delivery state according to GOST 5638-75, OST 4.021.094-92 |
|
≥290 |
- |
- |
- |
- |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| σB |
Limit short-term strength |
| d5 |
Elongation after rupture |
| d10 |
Elongation after rupture |
| HV |
The Vickers hardness |
Physical characteristics
| Temperature |
Е, ГПа |
r, кг/м3 |
l, Вт/(м · °С) |
R, НОм · м |
С, Дж/(кг · °С) |
| 20 |
132 |
8940 |
387 |
178 |
390 |
A description of the physical symbols
| Name |
Description |
| Е |
The normal elasticity modulus |
| l |
Coefficient of thermal conductivity |
| R |
UD. the resistivity |
