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Precision Alloys
Precision Alloys
Precision Alloys
Precision Alloys

Precision Alloys

Precision alloys are metal materials with special physical properties (such as magnetism, electricity, expansion, resistivity, etc.). Precision alloys play an indispensable role and can be used in industry such as electronic and electrical, consumer electronics, precision instruments, communication, sealing, sensor, aviation, energy power and others.
Typical products include soft magnetic alloys (1J21, 1J22, 1J27, 1J50, 1J79, 1J85), half-soft magnetic alloys (2J4, 2J85), elastic alloys (3J21, 3J33, 3J53), expansion alloys (4J29, 4J36, 4J42, 4J50), electric-resistance alloys (6J22, 6J23) etc.
The product form include strip, plate, bar, wire, ring, etc. The minimum thickness of strip is 0.005mm, the maximum width is 450mm, and the tolerance can reach ±0.5μm.

Features

Features are as below:

? ?Excellent physical properties;

? ?Accurate chemical composition, low inclusion, high purity;

? ?High dimensional accuracy, good shape and flatness, excellent surface quality;

? ?The weight of strip can reach up to 2800kg.

Typical Applications

Typical applications are as below:

? ?Electronic and electrical products: inductor core, choke core, sensor,? transformer, solenoid valve and magnetic shield, spring etc.;

? ?Consumer electronics: screen and shield for mobile consumer products, connectors for electronic devices and wireless headsets, components for 5G base station, etc.;

? ?Automatic control: signal amplifier, sensor, switch;

? ?Precision instrument: pressure sensitive diaphragm;

? ?Communication: optical fiber connector, cable shield.

Technical Specifications

Precision Alloys Typical Products

Alloy Type Brand Equivalent Brand Cold Strip Cold Wire Rolled Bar
Soft magnetic alloys 1J21 Hiperco 50    
1J27 Hiperco 27    
1J22 Hiperco 50  
1J50    
1J51      
1J79 Permalloy
1J85 Super-permalloy
1J116      
1J117      
Half-soft? magnetic alloy 2J4      
2J85  
Elastic alloys 3J1?    
3J9  
3J21    
3J33    
3J53      
3J78  
Expansion alloys 4J29 ?Covar
4J33    
4J36 ?Invar
4J42  
4J50  
Resistance? alloys 6J10    
6J12      
6J20  
6J22 ?Karma    
6J23 ?Evanohm    
6J40 ?Constantan    
High resistance alloys for electrical heating Cr20Ni80      
Cr20Ni35      
Cr20Ni30      

 

?Precision Alloys? Specification

Prodect Type Thickness/mm Width/mm Length/mm Remark
Hot-rolled Plate 6-100 100-400 100-3000  
Hot-rolled Strip 3-6 100-450 100-25000  
Bar? Φ10-Φ150 100-4000  
Cold-rolled Plate? 0.9-3.0 300-1000 100-3000  
Cold-rolled Strip? 0.1-2.0 200-450   Coil
Cold-rolled Thin Strip? 0.03-0.1 200-450   Coil
Foil? 0.005-0.03 ≤100   Coil
Wire Rod? Φ3-Φ10   Coil

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