Chemical Composition of Beryllium Copper Alloy B14 C17510
(% maximum, unless shown as range or minimum)
|
Copper(1) |
Aluminium |
Beryllium |
Cobalt |
Iron |
Nickel |
Silicon |
| Min / Max |
Remainder
|
0.20
|
0.2-0.6
|
0.3
|
0.10
|
1.4-2.2
|
0.20
|
| Nominal |
97.8
|
–
|
0.4
|
–
|
–
|
1.8
|
–
|
Note: Copper + Sum of Named Elements, 99.5% min)
Applicable Specifications
| Product |
Specification |
| AMS |
ASTM |
MILITARY |
SAE |
|
Bar
|
|
B441
|
|
|
|
Bar, Rolled
|
|
B534
|
|
|
|
Plate
|
|
B534
|
|
|
|
Rod
|
|
B441
|
|
J461, J463
|
|
Shapes
|
|
|
|
J461, J463
|
|
Sheet
|
|
B534
|
|
|
|
Strip
|
|
B534
|
MIL-C-81021
|
J461, J463
|
|
Tube
|
|
|
|
J461, J463
|
Common Fabrication Processes
Blanking, Drilling, Forming and Bending, Tapping, Turning
Fabrication Properties
| Joining Technique |
Suitability |
|
Soldering
|
Good |
|
Brazing
|
Good |
|
Oxy-Acetylene Welding
|
Not Recommended |
|
Gas Shielded Arc Welding
|
Fair |
|
Coated Metal Arc Welding
|
Fair |
|
|
| Joining Technique |
Suitability |
|
Spot Weld
|
Good |
|
Seam Weld
|
Fair |
|
Butt Weld
|
Fair |
|
Capacity for Being Cold Worked
|
Excellent |
|
Capacity for Being Hot Formed
|
Good |
|
Mechanical Properties
Typical Room Temperature 20°C
|
Temper
|
Section Size
|
Tensile Strength
|
Yield Strength
(0.5% ext under load)
|
Yield Strength
(0.2% offset)
|
Elongation
|
Rockwell Hardness
|
Vickers Hardness
|
Fatigue Strength
@ 108 cycles
|
|
mm
|
MPa
|
MPa
|
MPa
|
%
|
B
|
C
|
F
|
30T
|
|
MPa
|
| Flat Products |
| TB00 |
0.0
|
310
|
172
|
–
|
28
|
32
|
–
|
–
|
36
|
(78)
|
–
|
| TD02 |
0.0
|
469
|
414
|
–
|
8
|
70
|
–
|
–
|
64
|
(126)
|
–
|
| TD04 |
0.0
|
538
|
483
|
–
|
5
|
83
|
–
|
–
|
72
|
(160)
|
–
|
| TF00 |
0.0
|
758
|
621
|
–
|
12
|
96
|
–
|
–
|
80
|
(220)
|
–
|
| TH02 |
0.0
|
793
|
745
|
–
|
8
|
98
|
–
|
–
|
81
|
(234)
|
241
|
| TH04 |
0.0
|
793
|
758
|
–
|
8
|
98
|
–
|
–
|
81
|
(234)
|
–
|
| Forgings |
| TB00 |
0.0
|
293
|
–
|
138
|
–
|
50
|
–
|
–
|
–
|
(95)
|
–
|
| TF00 |
102
|
794
|
–
|
620
|
–
|
92
|
–
|
–
|
–
|
(198)
|
–
|
| Rod |
| TB00 |
0.0
|
310
|
172
|
–
|
28
|
35
|
–
|
–
|
–
|
(80)
|
–
|
| TD04 |
0.0
|
496
|
448
|
–
|
12
|
68
|
–
|
–
|
–
|
(122)
|
–
|
| TF00 |
0.0
|
758
|
621
|
–
|
18
|
96
|
–
|
–
|
–
|
(220)
|
–
|
| TH04 |
0.0
|
793
|
758
|
–
|
14
|
98
|
–
|
–
|
–
|
(234)
|
–
|
Physical Properties
| Property |
Metric Units
|
Imperial Units
|
|
Melting Point (Liquidus)
|
1068°C
|
1955°F
|
|
Melting Point (Solidus)
|
1029°C
|
1885°F
|
|
|
|
|
Density
|
8.77 gm/cm³ @ 20°C
|
0.317 lb/in³ @ 68°F
|
|
Specific Gravity
|
8.77
|
8.77
|
|
|
|
|
Coefficient of Thermal Expansion
|
17.6 x 10 -6 / °C (20-300°C)
|
9.8 x 10 -6 / °F (68-392°F)
|
|
Themal Conductivity
|
207.7 W/m. °K @ 20°C
|
120.0 BTU/ft²/ft/hr/°F @ 68°F
|
|
Thermal Capacity (Specific Heat)
|
419.0 J/kg. °K @ 293°K
|
0.1 BTU/lb/°F @ 68°F
|
|
|
|
|
Electrical Resistivity
|
3.79 microhm.cm @ 20°C
|
22.8 ohms (circ mil/ft) @ 68°F
|
|
Electrical Conductivity*
|
0.281 MegaSiemens/cm @ 20°C
|
48% IACS@ 68°F
|
|
Electrical Conductivity
|
0.263 MegaSiemens/cm @ 20°C
|
45% IACS@ 68°F
|
|
|
|
|
Modulus of Elasticity (tension)
|
132,400 MPa
|
19,200ksi
|
|
Modulus of Rigidity (shear)
|
51,710 MPa
|
7,500 ksi
|
Tempers Most Commonly Used
|
Flat Products
|
|
Bar, Drawn
|
H04, TB00, TF00
|
|
Bar, Rolled
|
H04, TB00, TF00
|
|
Plate
|
TB00
|
|
Strip, Rolled
|
H02, H04, TB00, TF00
|
|
|
|
Other Products
|
|
Rod
|
H04, TB00, TF00
|
|
Shapes
|
H02, TB00
|
|
Tube
|
TB00, TF00
|
|
Typical Uses for Beryllium Copper Alloy B14 C17510
Electrical: Instrument parts, connectors, heavy duty, relay parts, conductors, fuse clips, switch parts
Fasteners: Fasteners
Industrial: Springs, die casting plunger tips, thermal transfer plates, high flux electromagnets, welding equipment
|
