High purity Elastic alloy / 3J40, The price is for reference only, please contact customer service for quotation!!!
element ： 3J40
shape ： Rod
Package ： Vacuum packaging, carton, wooden box
Formal invoices are provided for all orders, and formal quotations and contracts are provided according to customer needs
Market reference price: $80.00 or so,The price is for reference only, please contact customer service for quotation.
Product Name: Elastic alloy / 3J40
Specifications: Various specifications and sizes can be customized according to customer requirements.
Physical and chemical properties
3J40 is a shaft tip alloy used to make shaft tips and small shafts of instruments.
It has high elastic limit, proportional limit, lasting limit, low elastic after-effect, elastic hysteresis, stress relaxation, and has a certain elastic modulus and shear modulus.
Some alloys also have a low temperature coefficient of elastic modulus (shear modulus) and a high mechanical quality factor.
The main purpose:
Instrument, the shaft tip of the instrument.
Main features:
Non-magnetic, shock-resistant, wear-resistant.
Chemical composition
| C | P | S | Mn | Si | Fe | Cr | Al | Ce | Ni |
| (≤) | |||||||||
| 0.03 | 0.01 | 0.01 | 0.1 | 0.2 | 0.5 | 39.0-41.0 | 3.30-3.50 | 0.10-0.20 | Balance |
Physical properties
| Shape | Alloy expansion coefficient βf/（10-6 ℃） | |||||
| 20-55℃ | 20-100℃ | 20-200℃ | 20-300℃ | 20-400℃ | 20-500℃ | |
Solid solution |
12.2-12.7 | 12.4-12.5 | 12.6-12.8 | 13.0-13.1 | 13.5-13.6 | 13.8-14.0 |
Solid solution + aging |
11.0-11.5 | 11.9-12.0 | 12.0-12.2 | 12.4-12.5 | 12.7-12.8 | 13.1-13.3 |
Cold drawing + aging |
11.6 | 12 | 12.1 | 12.4 | 12.8 | 13.3 |
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