Fax:0086-29-33698670
Email:sales@xagy.cn
Location:No. 88 East of Century Avenue, XianYang, Shaanxi, China. P.C. 712046
Super Invar
Forms: Sheet/Plate, Bar/Rod/Wire/Coil,Capillary/Pipe/Tube
Description
Super Invar ,A low expansion alloy consisting of 32% Nickel, 4% Cobalt, and balance Iron. Super Invar Alloy exhibits minimum thermal expansion at room temperatures (one half of Invar Alloy), as well as thermal expansion properties less than that of Invar Alloy in the 67/203°F (-55/95°C) temperature range. The minimal expansion of Super Invar over this range of temperatures, makes this alloy useful in many applications including structural components and substrates in instrument systems requiring precision measurements.
Application
Optical instruments . Telescopes . Laser instruments and equipment . Ring laser gyroscopes . Laser benches . Positioning devices . Metrology devices . Structural components . Substrates in instrument systems requiring precision measurements, and other applications that require lower expansivity than Invar Alloy provides.
parameter
Cross Reference
| Russia | USA | Japan | France |
| 32HКД | Super-invar | SI | Invar |
| 32HК-BИ | Super-Nilvar | Superieur |
Typical chemistry
| C | Si | P | S | Cu | Mn | Ni | Co | Fe | ||
| ≤ | ||||||||||
| 0.05 | 0.20 | 0.020 | 0.020 | 0.40-0.80 | 0.20-0.60 | 31.5-33.0 | 3.20-4.20 | Balance | ||
Notes:Under condition that the average coefficient of the linear expansion meets the requirements of the standard, the content of nickel and cobalt are allowed to deviate from the stated range.
Typical Physical Properties
| Density | lb/cu in | 0.294 |
| Specific Gravity | 8.15 | |
| Curie Temp | °F | 535 |
| °C | 279 | |
| Melting Point | °F | 4600 |
| °C | 1454 | |
| Electrical Resistivity | Micro-ohm-cm | 80 |
| Micro-ohm-c | 481.3 | |
| Tensile Strength | ksi | 70 |
| MPa | 483 | |
| Yield Strength | ksi | 40 |
| MPa | 276 | |
| Elongation | % in 2 in. | 40 |
Average Coefficient of Linear Expansion
Typical Expansion Coefficient
| Temp | 20--50℃ | 0-100℃ | 20-200℃ | 20-300℃ | 20-400℃ | 20-500℃ |
| Value | 0.7 | 0.8 | 1.4 | 4.3 | 7.2 | 9.3 |
Typical Mechanical Properties
| shape | Delivery state | Thickness&diameter/mm | Tensile strengthòь/Mpa | Elongationò(%) |
| Strip | Cold rolled | 0.20-2.50 | 1225 | 5 |
| Annealed | 0.20-1.00 | 1080 | 8 | |
| Wire | Cold drawn | 0.50-5.00 | 1375 | 5 |
| Rod | Cold drawn | 3.0-18.0 | 1325 | 5 |
| Pipe&Flatspring | Hot rolled &hot forged | 6.0-25.0 | 1080 | 10 |
Size Range
| Sheet | Thickness:0.10mm~3.50mm, width: ≤300mm |
| Plate | Thickness:3.5mm~40.0mm, width: ≤500mm |
| Round wire | Thickness:0.10mm~5.0mm |
| Flat Wire | Dia 0.5mm~Dia 5.0mm, length≤1000 |
| Rod | Dia 5.0mm~Dia 8.0mm, length≤2000 |
| Dia 8.0mm~Dia 32.0mm, length≤2500 | |
| Dia 32.0mm~Dia180.0mm, length≤1000 | |
| Capillary | OD 8.0mm~1.0mm,ID 0.1~8.0 length≤2500 |
| Pipe | OD 120mm~8.0mm,ID 8.0~129 length≤4000 |
Condition: (With max tolerance) cold rolled, cold drawn, hot rolled , hot forging ,peeled turned ,bright ,bright annealed
XAGY Advantages
1. High-qulity product
- ISO9001:2008 International Quality System Certification.
- With advanced equipments: VIMF, Induction Furnace, ESR Furnace ect.
- Strict Quality-testing System.
2. Strong R & D Strength
- 40,000㎡ production base.
- 60+ R & D team members, with rich customization experience.
- A good assortment of alloy to choose.
3. Efficient delivery
- Flexible transport means, very convenient.
- Tailor a suitable transport plan.
4. Good service
- We provide online service, information feedback within 24 hours.
- Professional team to provide remote technical advice and guidance.
Contact XAGY
Xi'an Gangyan Special Alloy Co., Ltd.
Hotline: 0086-29-33669103
Fax: 0086-29-33698670
Email: sales@xagy.cn
Add.: No. 88 East of Century Avenue, XianYang, Shaanxi, China. P.C.712046
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