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Invar Square Bar
Invar Alloy an alloy containing iron (63.8 per cent), nickel (36 per cent), and carbon (0.2 per cent). It has a very low coefficient of expansion and is used for the balance springs of watches, etc An alloy of iron and nickel used in tuning forks and measuring tapes and other instruments. A mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten; "brass is an alloy of zinc and copper"
Description
Product Description
Invar Alloy has a low and normally constant coefficient of thermal expansion from room temperature to about 300ºC (570ºF). Invar Alloy is used for semiconductor lead frames in integrated circuits, bi-metal thermostat strip, thermostat rods, for ceramic-to-metal seals with alumina ceramics, and various glass-to-metal seals such as the core of copper-clad-wire for sealing into glass envelopes of electric bulbs, radio valves, television tubes and fluorescent lights.
Invar 36 is made up of 64% iron and 36% nickel which is one of the best sale invar alloy in our company. Invar is known for its excellent properties of controlled coefficient of themal expansion.We supply Plate, sheet, bars( Invar Square Bar, Invar flat bars etc), wire, pipe etc.
Chemical Composition(%)
|
Grade |
C |
P |
S |
Si |
Mn |
Cu |
Co |
Ni |
Fe |
|
≤ |
|||||||||
|
Invar 36 |
0.05 |
0.02 |
0.02 |
0.2 |
0.2~0.6 |
0.4~0.8 |
3.2~4.2 |
31.5~33.0 |
Balance |
Physical Property
|
Grade |
Heat Treatment of Samples |
Mean Coefficient of Linear Expansion |
|
|
20~100℃ |
20~300℃ |
||
|
Invar 36 |
To heat the semi-finished products samples to 840±10℃,hold for 1 hour.and quench in the water. |
≤1.5 |
|
Typical Expansion Coefficient
|
Grade |
Mean Coefficient of Linear Expansion |
|||||
|
Invar 36 |
20~50℃ |
20~100℃ |
20~200℃ |
20~300℃ |
20~400℃ |
20~500℃ |
|
0.6 |
0.8 |
2 |
5.1 |
8 |
10 |
|
Pls confirm below information when you inquiry us
1. Delivery status: forged, cast, annealed, solid solution, aging state, etc;
2. Appearance status: black skin state, polished state, acid washed state;
3. Dimensional specifications: nominal size, tolerance range, fixed length, non fixed length, standard size;
4. Quality standards: GB, HB, GJB, AMS, GB/T, ASTM, ASME, JIS, DIN, EN, and others;
5. Product classification: Bar,Tube ,Strip, Wire,Flange,Plate,Ring,Round Cake,Forging ,casting Welding or drawing. We can produce according to your requirements
6. Order quantity
7. Delivery time
Our Advantages
Reliable Quality System
OEM/ ODM Services
No MOQ Required, More Opportunities
Excellent Pre-sales Service & After-sales Service
Fast Shipping & Best Price
FAQ
Q:What information should i confirm you when i send inquiry
A:Sometimes we need product specification like material standard or Grade, size, Qty, shipping port, Terms like FOB or CIF etc.
Q: How long of the delivery time?
A: Usually, the shipment can be delivery within 15-30days after the order confirmed.
Q: How about the payment items?
A: LC, T/T, PayPal, Western Union etc.
Q: Which country have you exported to?
A: Our main market is South America, Middle East, Africa and Europe. And have built long time relationship with Pakistan, US, Norway, Germany, Korea, Russia,Taiwan customers.And got continue orders from them every month.
Q: Can i visit your factory?
A: Sure! Welcome in any time.
Q: How about the MOQ?
A: Normally we dont have MOQ requirement, We always expect more opportunities with you. But for some special material or special size let's communicate the actual status.
Q: Can you support us in the applications?
A: It is our pleasure!
Q: Can you accept the inspection from a third party?
A: Yes. We have enough experience to cooperate with the inspection project.
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