Bronze Bra7
Bronze БрХ0,6Цр0,05 (БрХЦр0,6-0,05)
Bronze BrN10,5A0,5 (BrNA10,5-0,5)
Bronze БрН2,5Х0,7К0,6 (БрНХК2,5-0,7-0,6)
Bronze БрН5Мц2Т0,1 (БрНМцТ5-2-0,1)
BrNTsr bronze
Bronze BrSr0,1
Bronze БрТ5Х0,5 (БрТХ5-0,5)
Bronze БрХ0,2Нб0,1 (Alloy 204А; БрХНб0,2-0,1)
Bronze БрХ0,3Цр0,09 (БрХЦр0,3-0,09)
Bronze БрХ0,4Ко0,4Кр0,2Мг0,04 (Alloy №50)
Bronze БрХ0,4Нб0,25 (Alloy 204; БрХНб0,4-0,25)
Bronze БрХ0,5В0,2Цр0,2 (ХВЦр0,5-0,2-0,2)
Bronze БрХ0,6Т0,5 (БрХТ0,6-0,5)
Bronze BrMc5
BrCr0.7 bronze
Bronze БрХ0,8
Bronze BrX1
Bronze BrC1Cr
Bronze BrChNb
Bronze BrCNT
Bronze BrCrK
Bronze BrCrTV
Bronze BrCr0,2
Bronze BrCr0,3
Bronze BrCr0,4
Bronze BrCr0.7
Bronze БрА9Ж4Н4Мц1 (БрАЖНМц9-4-4-1)
Bronze BrB2
Bronze БрАЖ1,5 (БрАЖ10-1,5)
Bronze БрААЖ3Мц1,5 (БрАЖМц10-3-1,5)
Bronze БрААЖ10Ж4Н4 (БрАЖН10-4-4)
Bronze БрАА10Мц2 (БрАМц10-2)
Bronze BrA5
Bronze БрА6Мг1 (БрАМг6-1)
Bronze BrA7
Bronze БрА8,5Ж4Н5Мц1,5 (БрАЖНМц8,5-4-5-1,5)
Bronze БрАА9Ж4 (БрАЖ9-4)
Bronze БрА9Мц2 (БрАМц9-2)
Bronze БрБ1,7НТ (БрБНТ1,7)
Bronze БрБ1,9НТ (БрБНТ1,9)
Bronze БрБ1,9НТМг (БрБНТ1,9Мг)
Bronze BrN1,5Kr0,5 (BrNKr1,5-0,5)
Bronze BrB2,5
Bronze БрК0,4Х0,6Кo1,6 (БрКХКo0,4-0,6-1,6)
Bronze BrK1H3 (BrKN1-3)
Bronze БрК3Мц1 (БрКМц3-1)
Bronze BrKd0,5X0,15 (BrKdX0,5-0,15)
Bronze BrKd1
BrKo3Mts10 (BrKoMts3-10) bronze
Bronze BrMg0.03Cr0.035 (BrMgCr0.03-0.035)
Bronze BrMg0,3
Bronze BrMg0,5
Bronze BrMg0,8
Bronze BrMc12A8Zh3N2 (BrMcAzHN12-8-3-2)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
БрА7 |
| Designation GOST Latin |
BpA7 |
| Transliteration |
BrA7 |
| The chemical elements |
BaAl7 |
Description
Bronze Bra7 used: for the manufacture of semi-finished tapes and bands; elements of chemical engineering; moving contact; springs from the tape.
Note
Bronze is corrosion resistant to sulfuric and acetic acids, heat resistant, abrasion resistant.
Bronze brand Bra7 well deformed in a cold state.
Analog bronze Bra7 at CMEA 377−76 is bronze CuAl8.
Standards
| Name |
Code |
Standards |
| Tapes |
В54 |
GOST 1048-79, OST 4.021.079-92 |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 18175-78, GOST 28873-90, OST 4.021.009-92 |
| Sheets and stripes |
В53 |
TU 48-21-181-82 |
Chemical composition
| Standard |
P |
Mn |
Si |
Fe |
Cu |
Al |
Zn |
Sn |
Pb |
| GOST 18175-78 |
≤0.01 |
≤0.5 |
≤0.1 |
≤0.5 |
The rest |
6-8 |
≤0.5 |
≤0.1 |
≤0.03 |
Cu is the basis.
According to GOST 18175-78, the total mass fraction of normalized impurities is ≤ 1.10%. As agreed by the manufacturer with the consumer, the content of impurities of arsenic and antimony can be normalized. The mass fraction of nickel is allowed up to 0.50% without taking it into account in the total amount of impurities.
Mechanical characteristics
| Section, mm |
sT|s0,2, MPa |
σB, MPa |
d10 |
HV, MPa |
| Cold-rolled steel strip 0.1-1.0 mm in the delivery state on the EAST 4.021.079-92. (T/o for "heat-Treated": the Annealing at 260-280 °C (aging of 0.5-1.0 h) |
| 0.5-1 |
470-720 |
570-770 |
≥5 |
- |
| 0.5 |
510-755 |
589-785 |
≥3 |
- |
| 0.5-1 |
≥490 |
≥590 |
≥10 |
- |
| 0.5 |
≥490 |
≥590 |
≥5 |
- |
| Cold-rolled steel strip of 0.1-2.0 mm in the delivery state according to GOST 1048-79. (T/o for "heat-Treated": the Annealing at 260-280 °C (aging of 0.5-1.0 h) |
| 0.5-1.2 |
≥720 |
≥770 |
- |
≥230 |
| 0.5 |
≥760 |
≥780 |
- |
≥230 |
| 0.5-1.5 |
470-720 |
570-770 |
≥5 |
180-240 |
| 0.5 |
510-760 |
590-780 |
≥3 |
180-240 |
| 0.5-2 |
≥490 |
≥590 |
≥10 |
- |
| 0.5 |
≥490 |
≥590 |
≥5 |
- |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σB |
Limit short-term strength |
| d10 |
Elongation after rupture |
| HV |
The Vickers hardness |
Physical characteristics
| Temperature |
Е, ГПа |
r, кг/м3 |
l, Вт/(м · °С) |
R, НОм · м |
| 20 |
120 |
7800 |
80 |
110 |
A description of the physical symbols
| Name |
Description |
| Е |
The normal elasticity modulus |
| r |
Density |
| l |
Coefficient of thermal conductivity |
