Bronze Brof4-0,25
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 |
БрОФ4-0,25 |
| Designation GOST Latin |
BpOF4-0,25 |
| Transliteration |
BrOF4-025 |
| The chemical elements |
BaSnP4-0,25 |
Description
Bronze Brof4−0,25 is used: for the manufacture of semi-finished tapes and tubes used in vehicle building and instrumentation; oval, round and flat-oval drawn tubes for the manufacture of the pressure springs.
Standards
| Name |
Code |
Standards |
| Pipes from non-ferrous metals and alloys |
В64 |
GOST 2622-75 |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 28873-90, GOST 5017-2006 |
| Tapes |
В54 |
TU 48-21-174-72 |
Chemical composition
| Standard |
S |
P |
Si |
Ni |
Fe |
Cu |
Al |
Zn |
Sn |
Sb |
Pb |
Bi |
Mg |
| GOST 5017-2006 |
≤0.007 |
0.2-0.3 |
≤0.002 |
≤0.2 |
≤0.02 |
The rest |
≤0.002 |
≤0.3 |
3.5-4 |
≤0.002 |
≤0.02 |
≤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 ≤ 0.10%.
Mechanical characteristics
| Section, mm |
σB, MPa |
d10 |
| Pipe drawn (round, oval, flat-sided oval) in the delivery state according to GOST 2622-75 |
|
≥490 |
≥3 |
|
≥340 |
≥40 |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| σB |
Limit short-term strength |
| d10 |
Elongation after rupture |
Physical characteristics
| Temperature |
Е, ГПа |
r, кг/м3 |
l, Вт/(м · °С) |
R, НОм · м |
| 20 |
100 |
8900 |
84 |
90 |
A description of the physical symbols
| Name |
Description |
| Е |
The normal elasticity modulus |
| l |
Coefficient of thermal conductivity |
