Bronze Brocs4-4-2,5
Bronze BrMcO7-3
Bronze БрОФ2-0,25
Bronze БрОФ4-0,25
Bronze БрОФ6,5-0,15
Bronze БрОФ6,5-0,4
Bronze БрОФ7-0,2
Bronze БрОФ8-0,3
Bronze БрОЦ4-3
Bronze БрОЦС4-4-2,5
Bronze БрОЦС4-4-4
Bronze БрХ0,3О0,3Цр0,1 (БрХОЦр0,3-0,3-0,1)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
БрОЦС4-4-2,5 |
| Designation GOST Latin |
BpOTsC4-4-2,5 |
| Transliteration |
BrOTsS4-4-25 |
| The chemical elements |
BaSnZnPb4-4-2,5 |
Description
Bronze Brocs4−4-of 2.5 is used: for the manufacture of tapes and bands used for gaskets, bushings and bearings; bushings and pads of automobiles and tractors.
Standards
| Name |
Code |
Standards |
| Tapes |
В54 |
GOST 15885-77 |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 28873-90, GOST 5017-2006 |
Chemical composition
| Standard |
S |
P |
Ni |
Fe |
Cu |
Al |
Zn |
Sn |
Sb |
Pb |
Bi |
Mg |
| GOST 5017-2006 |
≤0.007 |
≤0.03 |
≤0.3 |
≤0.05 |
The rest |
≤0.002 |
3-5 |
3-5 |
≤0.002 |
1.5-3.5 |
≤0.002 |
≤0.007 |
Cu is the basis.
According to GOST 5017-2006, the total content of other impurities (not specified in the chemical composition) should be ≤ 0,20%.
Mechanical characteristics
| Section, mm |
σB, MPa |
d5, % |
d10 |
Brinell hardness number, MPa |
| Bronze in the delivery condition |
| - |
300-350 |
35-45 |
- |
50-70 |
| - |
550-650 |
2-4 |
- |
160-170 |
| Ribbon (0,5-2,0 mm) and strip (of 1.58-3.0 mm) supplied according to GOST 15885-77 |
|
≥290 |
- |
≥35 |
- |
|
390-490 |
- |
≥10 |
- |
|
≥540 |
- |
≥5 |
- |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| σB |
Limit short-term strength |
| d5 |
Elongation after rupture |
| d10 |
Elongation after rupture |
Physical characteristics
| Temperature |
Е, ГПа |
r, кг/м3 |
l, Вт/(м · °С) |
R, НОм · м |
| 20 |
75 |
8900 |
84 |
90 |
A description of the physical symbols
| Name |
Description |
| Е |
The normal elasticity modulus |
| l |
Coefficient of thermal conductivity |
| R |
UD. the resistivity |
