Copper M2

Designation

Name The value
Designation GOST Cyrillic М2
Designation GOST Latin M2
Transliteration M2
By 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
Tape В54 GOST 1018-77, GOST 20707-80, GOST 1173-2006
Bars В55 GOST 1535-2006
Tubes of 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 strips В53 GOST 495-92, GOST 5638-75, OST 4.021.094-92
Non-ferrous metals, including rare, 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 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 properties

Section, mm σU, MPa d5, % d10 HB, 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
σU Limit short-term strength
d5 Elongation after rupture
d10 Elongation after rupture
HB Brinell hardness number
HV The Vickers hardness

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
l Coefficient of thermal conductivity
R UD. the resistivity