SUPER-INVAR 32-5 LOW EXPASION ALLOY ASTM F1684
Super Invar 32-5 is Iron-Nickel-Cobalt alloy, consisting of 32% nickel, 5% cobalt, and balance iron. Super Invar Alloy exhibits minimum thermal expansion at room temperatures (one half of Invar 36 Alloy), as well as thermal expansion properties less than that of Invar 36 Alloy in the 67/203°F (-55/95°C) temperature range.
The alloy is first melted using Vacuum Induction Melting (VIM) techniques. A secondary melt operation, Electro Slag Remelt (ESR), is then employed to further remove impurities and improve overall homogeneity.
| Commercial Grade |
Super-invar 32-5 |
| Material |
Iron-Nickel-Cobalt alloy |
| Specification |
ASTM F1684 |
| Thermal Expansion,（30-100℃）/μ m/m•°C |
0.3 |
| Application |
Seals |
Forms Manufactured
| ROD |
DIA≤50MM |
| Strip/Sheet |
T≥0.015MM，Width≤1500MM |
| Plate |
T≥3.0MM，Width≤2500MM |
Chemical Composition，%
| Ni |
Co |
Mn |
Si |
C |
Al |
Mg |
Zr |
Ti |
Cr |
P |
S |
Fe |
| 32.0 |
5.0 |
≤0.6 |
≤0.25 |
≤0.05 |
≤0.10 |
≤0.10 |
≤0.10 |
≤0.10 |
≤0.25 |
≤0.015 |
≤0.015 |
Bal |
Physical properties
| Electrical resistivity ,μΩ.m |
0.77 |
| Density,g/cm3 |
8.15 |
| Curie temperature,ºC |
230 |
| melting Point,ºC |
1427 |
Coefficient of Thermal Expansion
| Temperature Range,℃ |
Thermal Expansion,μ m/m•°C |
| 30 to 100 |
1.0 Max |
| -18 to 93 |
0.9Max |
Typical Coefficient of Thermal Expansion，μ m/m•°C
| Temperature Range,℃ |
Thermal Expansion,μ m/m•°C |
| 30-100 |
0.4 |
| -18 to 93 |
0.6 |
Typical Mechanical Properties
|
Tensile Strength
Rm MPa
|
Yield Strength
Rp0.2 MPa
|
Elongation
A/%
|
Reduction Section
Z,%
|
Hardness
HV
|
| 448 |
286 |
44 |
79 |
168 |
Important Notice
1. Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only.
2. Sample Policy
Super-Invar 32-5 are available in many shapes and dimensions,supplying semi-finished products in forms of Strip,plate & Rods.The samples are big enough (typically about 200mm in length for strip or plate) to get an understanding of the material characteristics, meanwhile custom-made sample order available ! small quantity accepted.
3. Payment Terms
30% T/T in advance ,balance before shippment.
4. Who you talking to
Mr. Paul (Designation :Foreign Trade Manager)
WeChat & Phone No: +86 (0)13669288752 (24 Hours)
Skype: alloynickel
Tel: +86 29 3366 9103 ( 08:30-17:30,Beijing Time. Mr.Paul ,Excellent Engilsh & Mandarin)
Fax: +86 29 3369 8670
Http:// www.alloynickel.com
