Bronze Sheets
Bronze Sheet is copper with tin, aluminum, and trace elements as raw materials, through processing by ingots, hot rolled, cold rolled, heat treatment, surface cleaning, cutting, finishing and packing, materials with high yield strength, fatigue strength, elastic properties and excellent bending formability. It has been widely used in computer CPU socket, car terminals, mobile phone keypad, electrical and other high-tech electronics connectors.
Main Technical Parameters:
3-1Chemical Composition
|
Name
|
Alloy No.
|
Chemical Composition (%, Max.)
|
||||||||
|
Sn
|
Al
|
Zn
|
Ni
|
Fe
|
Pb
|
P
|
Cu
|
Impurity
|
||
|
Tin Bronze
|
QSn4-0.3
|
3.5-4.9
|
---
|
0.30
|
0.2
|
0.10
|
0.05
|
0.03-0.35
|
Rem
|
0.2
|
|
QSn4-3
|
3.5-4.5
|
0.002
|
2.7-3.3
|
0.2
|
0.05
|
0.02
|
0.03-0.35
|
Rem
|
0.2
|
|
|
QSn6.5-0.1
|
6.0-7.0
|
0.002
|
0.3
|
0.2
|
0.02
|
0.02
|
0.1-0.25
|
Rem
|
0.1
|
|
|
QSn8-0.3
|
7.0-9.0
|
------
|
0.2
|
0.2
|
0.10
|
0.05
|
0.03-0.35
|
Rem
|
0.1
|
|
|
Aluminum Bronze
|
QAl5
|
0.1
|
4.0-6.0
|
0.5
|
0.5
|
0.5
|
0.03
|
0.01
|
Rem
|
1.6
|
|
QAl7
|
-----
|
6.0-8.5
|
0.2
|
0.5
|
0.5
|
0.02
|
------
|
Rem
|
------
|
|
|
QAl9-2
|
0.1
|
8.0-10.0
|
1.0
|
0.5
|
0.5
|
0.03
|
0.01
|
Rem
|
1.7
|
|
|
Name
|
Alloy No.
|
Chemical Composition (%, Max.)
|
|||||||||
|
Be
|
Al
|
Si
|
Ni
|
Fe
|
Pb
|
Ti
|
Co
|
Cu
|
Impurity
|
||
|
Beryllium Bronze
|
QBe2
|
1.8-2.1
|
0.15
|
0.15
|
0.2-0.4
|
0.15
|
0.005
|
---
|
---
|
Rem
|
0.5
|
|
QBe1.9
|
1.85-2.1
|
0.15
|
0.15
|
0.2-0.4
|
0.15
|
0.005
|
0.10-0.25
|
---
|
Rem
|
0.5
|
|
|
QBe1.7
|
1.6-1.85
|
0.15
|
0.15
|
0.2-0.4
|
0.15
|
0.005
|
0.10-0.25
|
---
|
Rem
|
0.5
|
|
|
QBe0.6-2.5
|
0.4-0.7
|
0.20
|
0.20
|
------
|
0.10
|
---
|
---
|
2.4-2.7
|
Rem
|
---
|
|
|
QBe0.4-1.8
|
0.2-0.6
|
0.20
|
0.20
|
1.4-2.2
|
0.10
|
---
|
---
|
0.30
|
Rem
|
---
|
|
|
QBe0.3-1.5
|
0.25-0.5
|
0.20
|
0.20
|
------
|
0.10
|
---
|
---
|
1.4-1.7
|
Rem
|
---
|
|
3-2 Alloy Table
|
Name
|
China
|
ISO
|
ASTM
|
JIS
|
|
Tin Bronze
|
QSn4-0.3
|
CuSn4
|
C51100
|
C5101
|
|
QSn4-3
|
CuSn4Zn2
|
---
|
---
|
|
|
QSn6.5-0.1
|
CuSn6
|
C51900
|
C5191
|
|
|
QSn8-0.3
|
CuSn8
|
C52100
|
C5210
|
|
|
Aluminum Bronze
|
QAl5
|
CuAl5
|
C60600
|
------
|
|
QAl7
|
CuAl7
|
C61000
|
------
|
|
|
QAl9-2
|
CuAl9Mn2
|
------
|
------
|
|
|
Beryllium Bronze
|
QBe2
|
CuBe2
|
C17200
|
C1720
|
|
QBe1.9
|
------
|
------
|
------
|
|
|
QBe1.7
|
CuBe1.7
|
C17000
|
C1700
|
|
|
QBe0.6-2.5
|
------
|
C17500
|
C1750
|
|
|
QBe0.4-1.8
|
------
|
C17510
|
C1751
|
|
|
QBe0.3-1.5
|
------
|
C17600
|
C1760
|
3-3 Feature
3-3-1Specification Unit: mm
|
Name
|
Alloy No.(China)
|
Temper
|
Size(mm)
|
||
|
Thickness
|
Width
|
Length
|
|||
|
Tin Bronze Sheets
|
QSn6.5-0.1
|
Y,Y2
M,T
|
0.2~0.49
|
600
|
1000~2000
|
|
0.5~2.5
|
600
|
1000~3000
|
|||
|
3.0~12
|
400~600
|
1000~2000
|
|||
|
QSn4-3
QSn8-0.3 |
M,Y,T
|
0.3~2.0
|
≤550
|
1000~2000
|
|
|
3.0~12
|
＞400~600
|
1000~2000
|
|||
|
Aluminum Bronze Sheet
|
QAl5 QAl7
|
R
|
8~25
|
600~1500
|
≤2000
|
|
QAl5
|
Y,M
|
3~12
|
600~1000
|
≤2000
|
|
|
QAl7
|
Y Y2
|
||||
|
QAl9-2
|
R
|
8~25
|
<600
|
≤2000
|
|
|
Y,M
|
3~12
|
≤1000
|
≤2000
|
||
|
QA19-4
|
R
|
8~25
|
<600
|
≤2000
|
|
|
Y
|
3.0~12
|
≤1000
|
≤2000
|
||
|
Beryllium Bronze Sheet
|
QBe2 QBe1.9 QBe1.7
QBe0.6-2.5 QBe0.3-1.5
|
R
|
1.0-60
|
<600
|
<2000
|
|
Y M
|
0.05-1.0
|
<600
|
<2000
|
||
Temper Mark:M. Soft;Y4. 1/4 Hard;Y2. Hard;Y. Hard;T. Ultra hard.
3-3-2 Tolerance Unit: mm
|
Thickness
|
Width
|
|||||
|
Thickness Allow Deviation±
|
Width Allow Deviation ±
|
|||||
|
<600
|
<1000
|
<2000
|
<600
|
<1000
|
<2000
|
|
|
0.2~0.3
|
0.020
|
0.025
|
-----
|
0.3
|
0.3
|
-----
|
|
0.3~0.5
|
0.030
|
0.035
|
-----
|
0.3
|
0.3
|
-----
|
|
0.5~0.8
|
0.035
|
0.050
|
0.080
|
0.3
|
0.3
|
1.5
|
|
0.8~1.2
|
0.040
|
0.060
|
0.090
|
0.3
|
0.5
|
1.5
|
|
1.2~2.0
|
0.050
|
0.080
|
0.100
|
0.3
|
0.5
|
2.5
|
|
2.0~3.2
|
0.060
|
0.100
|
0.120
|
0.5
|
0.5
|
2.5
|
|
3.2~5.0
|
0.080
|
0.120
|
0.15
|
0.5
|
0.8
|
5.0
|
|
5.0~8.0
|
0.110
|
0.160
|
0.200
|
0.5
|
0.8
|
5.0
|
|
8.0~12.0
|
0.150
|
0.200
|
0.250
|
0.5
|
0.8
|
5.0
|
|
12.0~20.0
|
0.400
|
0.650
|
1.100
|
5.0
|
7.5
|
10.0
|
|
20.0~30.0
|
0.550
|
0.850
|
1.300
|
5.0
|
7.5
|
10.0
|
|
30.0~40.0
|
0.700
|
1.100
|
1.600
|
5.0
|
7.5
|
10.0
|
|
40.0~60.0
|
0.900
|
1.300
|
2.200
|
5.0
|
7.5
|
10.0
|
3-3-3 Mechanical Performance:
|
Temper
|
Tensile Strength
N/mm2
|
Elongation
≥%
|
Hardness
HV
|
|
|
M
|
(O)
|
≥295
|
40
|
------
|
|
Y4
|
(1/4H)
|
390-510
|
35
|
100-160
|
|
Y2
|
(1/2H)
|
440-570
|
10
|
160-205
|
|
Y
|
(H)
|
540-690
|
8
|
180-230
|
|
T
|
(TH)
|
≥640
|
5
|
≥200
|
Temper Mark:M. Soft;Y4. 1/4 Hard;Y2. Hard;Y. Hard;T. Ultra hard.
|
Alloy No.
|
Temper
|
Mechanical Performance
|
Erichsen Depth (mm)
|
Treatment
|
|||
|
Tensile Strength
σb≥MPa |
Elongation
δ≥(%) |
Hardness
HV MPa |
Thickness
|
||||
|
0.16-0.25
|
0.15-0.10
|
||||||
|
QBe2.0
QBe1.9
QBe1.7
|
Soft
|
392-588
|
30
|
≤1274
|
≥7
|
≥6
|
320℃x2h
|
|
Hard
|
637
|
2.5
|
≥1666
|
≥3
|
≥2.5
|
||
|
Soft Aging
|
1127
|
2.0
|
≥3136
|
-
|
-
|
||
|
Hard Aging
|
1176
|
1.5
|
≥3528
|
-
|
-
|
||
|
QBe0.6-2.5 QBe0.3-1.5
|
Soft
|
392-588
|
30
|
≤1176
|
≥7
|
≥6
|
|
|
Hard
|
637
|
2.5
|
≥1568
|
≥3
|
≥2.5
|
||
|
Soft Aging
|
1127
|
2.0
|
≥3430
|
-
|
-
|
320℃x2h
|
|
|
Hard Aging
|
1176
|
1.5
|
≥3626
|
-
|
-
|
||