Phosphor bronze rod is commonly used nonferrous spring alloys. The combination of good physical properties, fair electrical conductivity, and moderate cost make phosphor bronze round, square, flat, and special-shaped wire desirable for many springs, electrical contacts, and a wide variety of wire forms where the desired properties do not require the use of more expensive beryllium copper.
Grade Chart | ||||||
China | Russia | United States | United Kingdom | France | Germany | Japan |
QBe2 | БPБHT2 | C17200 C17300 | CuBe2 | CuBe2 | C1720 | |
QBe1.9 | БPБHT1-9 | C17200 | CuBe1.9 | |||
QBe1.7 | БPБHT1-7 | C17000 | CB101 | CuBe1.7 | CuBe1.7 | C1700 |
Chemical Composition | |||||||||||||
Type | Alloy | Al | Be | Si | Ni | Fe | Pb | Ti | Mg | Co | Ag | Cu | Impurities |
High-strength beryllium bronze | QB2 | 0.15 | 1.80-2.1 | 0.15 | 0.2-0.5 | 0.15 | 0.005 |
|
|
|
| Rest | 0.5 |
QBe1.9 | 0.15 | 1.85-2.1 | 0.15 | 0.2-0.4 | 0.15 | 0.005 | 0.1-0.25 |
|
|
| Rest | 0.5 | |
QBe1.9-0.1 | 0.15 | 1.85-2.1 | 0.15 | 0.2-0.4 | 0.15 | 0.005 | 0.1-0.25 | 0.07-0.13 |
|
| Rest | 0.5 | |
QBe1.7 | 0.15 | 1.6-1.85 | 0.15 | 0.2-0.4 | 0.15 | 0.005 | 0.1-0.25 |
|
|
| Rest | 0.5 | |
High-conductivity beryllium bronze | QBe0.6-2.5 | 0.20 | 0.4-0.7 | 0.20 |
| 0.10 |
|
|
| 2.4-2.7 |
| Rest |
|
QBe0.4-1.8 | 0.20 | 0.20-0.6 | 0.20 | 1.4-2.2 | 0.10 |
|
|
| 0.3 |
| Rest |
| |
QBe0.3-1.5 | 0.20 | 0.25-0.5 | 0.20 |
| 0.10 |
|
|
| 1.4-1.7 | 0.9-1.1 | Rest |
| |
Performance | Alloy |
BFe30-1-1 Iron white copper | |
Liquid point /℃ | 1231.7 |
Solid point /℃ | 1171.6 |
Specific heat capacity /J·（kg·K）-1 | |
20-100℃Linear expansion coefficient /℃-1 | 16x10-6 |
Thermal conductivity（20℃）/W·（m·K）-1 | 37.3 |
Density /kg·m-3 | 8900 |
Resistivity（20℃）/μΩ·m | 420 |
Resistance temperature coefficient /℃-1 | 20.012 |
Elastic Modulus /GPa | 154 |
Phosphor bronze sheet (94.8% copper, 5% tin, 0.2% phosphorus) is also used in cryogenics. In this application, Phosphor bronze sheet combination of fair electrical conductivity and low thermal conductivity allows the making of electrical connections to devices at ultra-low temperatures without adding excessive heat.
1. Standard Exporting package.
2. Original package or neutral package.
3. According to clients ' needs.
4. Shipped in10-35 days after payment.
