CDA 172 Beryllium Cu Alloy Bars With High Tensile Strength For Welding Equipment
Product Normal Description:
Product Name: Beryllium Cu alloy bars
Grade: CDA 172
Standard: ASTM B196,251,463; SAE J461,463; AMS 4533,4534,4535; AMS 4650,4651; RWMA Class 4
Product Diameter: 5mm-100mm
State: A(TB00),1/2H (TD02), H(TD04),AT(TF00),HT(TH04)
Typical Application: For electrical industry
CDA 172 Beryllium Cu Alloy International Specification:
Rods/Bars/Tubes: ASTM B196,251,463; SAE J461,463; AMS 4533,4534,4535; AMS 4650,4651; RWMA Class 4
European Standards: CuBe2, Alloy 25, QBe2, BrB2, DIN.2.1247, CW101C to EN
Note:
ASTM: American Society for Testing and Materials
SAE: Society of Automotive Engineers
AMS: Aerospace Materials Specification(Published by SEA)
RWMA: Resistance Welder Manufacturers' Association
Note: Unless otherwise specified, material will be produced by ASTM.
Typical Physical Properties of CDA 172 Beryllium Cu Alloy :
| Characteristics |
|
English |
Metric |
| Nominal density
(68°F/20°C)
|
|
0.298 lbs/in3 |
8.25 g/cm3 |
| Specific heat
(212 °F/100°C)
|
|
0.10 BTU/lb – °F |
420 J/KG- °K |
| Melting range |
|
1590-1800 °F |
865-980 °C |
| Coefficient of thermal
expansion
|
68°F – 212°F
20°C – 100°C
|
9.3 micro in/in- °F |
16.7 micro m/m- °K |
| 68°F – 392°F
20°C – 200°C
|
9.4 micro in/in- °F |
17.0 micro m/m- °K |
| 68°F – 572°F
20°C – 300°C
|
9.9 micro in/in- °F |
17.8 micro m/m- °K |
| Thermal conductivity |
20°C / 68°F |
60-75 BTU/ft- hr – °F |
105-130 W/m – °K |
| 200°C / 392°F |
75-77 BTU/ft- hr – °F |
130-133 W/m – °K |
| Electrical resistivity |
20°C / 68°F |
57-115 nΩ ∙ m |
| Electrical conductivity |
Volumetric:
20°C / 68°F
|
15-30% IACS |
Mechanical and Electrical Properties of CDA 172 Beryllium Cu Alloy Bars:
| Temper(*) |
Diameter |
Heat Treatment |
Tensile Strength ksi |
Elongation Percent
(Min)
|
Electrical Conductivity Percent
IACS
|
Hardness Rockwell B or C Scale |
| A(TB00) |
ALL SIZE |
/ |
400~600 |
30 |
15~19 |
B45~85 |
| 1/2H(TB04) |
5~40 |
/ |
550~700 |
10 |
15~19 |
＞B78 |
H(TD04) |
5~10 |
/ |
660~900 |
5 |
15~19 |
＞B88 |
| ＞10~25 |
/ |
620~860 |
5 |
15~19 |
| ＞25 |
/ |
590~830 |
5 |
15~19 |
| AT(TF00) |
ALL SIZE |
3 hr 320°C |
1100~1380 |
2 |
22~28 |
C35~42 |
| HT(TH04) |
5~10 |
2 hr 320°C |
1200~1550 |
1 |
22~28 |
C37~45 |
| ＞10~25 |
1150~1520 |
1 |
22~28 |
C36~44 |
| ＞25 |
1120~1480 |
1 |
22~28 |
C35~44 |
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