Product Details
3j21 Wire Super Elastic Alloy Wire For Spring Precision Wire
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3J21 wire is made of 3J21 alloy, which is a cobalt - based
precipitation - hardening high - elastic alloy. It is widely used
in aerospace, precision instruments, medical devices and other
fields due to its excellent performance.
According to ASTM F1058 standard, the chemical composition of 3J21
is as follows:
Element | Content (%) |
---|
Co | 39 - 41 |
Cr | 19 - 21 |
Ni | 14 - 16 |
Mo | 6.5 - 7.5 |
Mn | 1.7 - 2.3 |
C | 0.07 - 0.12 |
Be | 0.01 |
Fe | Bal. |
Si | 0.6 |
P | ≤0.015 |
S | ≤0.015 |
The physical properties of 3J21 wire are shown in the following
table:
Property | Value |
---|
Density (g/cm³) | 8.4 |
Resistivity (μΩ·m) | 0.92 |
Elastic Modulus (E/MPa) | 196000 - 215500 |
Shear Modulus (G/MPa) | 73500 - 83500 |
Magnetic Susceptibility (K/10⁶) | 50 - 1000 |
Melting Point (℃) | 1372 - 1405 |
- High Elasticity
- Excellent Fatigue Resistance
- Good Corrosion Resistance
- Non - magnetic
- High - temperature Resistance
- Aerospace: Used for key springs of engines, diaphragms, precision fasteners,
sensor elements, etc.
- High - end Instruments and Meters: Applicable to tension wires, hairsprings, diaphragms, bellows,
precision springs, etc.
- Medical Devices: Used for elastic components of surgical instruments and
components of implanted devices.
- Precision Machinery and Electronics: Suitable for relay contact springs, connectors, support parts of
optical devices, etc.
- Energy and Petrochemical: Used for special valve springs and elastic parts of down - hole
tools.
The diameter of 3J21 wire usually ranges from 0.05mm to 6.0mm.
Different diameter specifications are suitable for making different
components,
such as small - scale precision springs and sensor elements.
Picture
Company Profile
Huona (Shanghai) New Material Co., Ltd. Was established in 2008,
currently have three divisions: Magnesium Division, Thermal Spray
Division and Functional Material Division.
Magnesium Division produces magnesium metal products. Various
models of high-quality magnesium alloy plate, magnesium rods,
high-purity magnesium, magnesium plate, magnesium die casting,
magnesium extrusion profiles and other metal magnesium and deep
processing products.
Thermal spray wire Division offers a wide variety of pure metal and
metal alloy wires, including nickel-, iron-, aluminum-, and
zinc-based wires for thermal spray projects.
Fuctional Material Division supply electronic packaging
COMPONENTS(GTMS, CTMS), soft magnetic alloys and bimetal strip.
Our company is certified by ISO9001 quality system and ISO14001
environmental protection system.
Mission Statement
We try our best to understand and utilize information within the
environment. With this competency, we assist customers to create
added value and contribute to the development of industry and
healthy living.
We strive for "Best, " welcome challenges, and are relentless till
we deliver products and solutions.