Invar Wire
What is Invar Wire ?
Invar wire is a low-expansion nickel-iron alloy wire known for its dimensional stability. It’s mostly made of 36% nickel and the rest iron, with variants like Invar 42 and Invar 49 adjusting the nickel content for different needs. These wires have high tensile strength, low thermal expansion, and excellent magnetic properties. For crucial applications in electronics, scientific apparatus, and aerospace, Parag Metals provides premium Invar wire with precise tolerances and reliable performance.
Invar wire is resistant to corrosion, simple to machine and provides consistent performance under temperature sensitive conditions. We have wires in different diameters ranging from 0.1 mm to 6 mm and provide custom lengths as per request. From precision engineered material or bulk orders, our stock caters to a large variety. Being an Invar wire wholesaler and stockist, we provide prompt availability and quick dispatch.
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Specialized In Invar Wires Stockist In India, Excellent Quality In Invar Wire, Invar MIG Wire Dealer In India, Get Custom Size Invar Wires at Lowest Price.
Prices vary based on grade, size, and order volume. Invar 36 wire is widely used in CRT shadow masks, precision instruments, and clocks. Invar 42 wire is ideal for electronics and semiconductor applications. Invar 49 wire finds use in relays and transformers. We are known as trusted Invar wire suppliers in India and also serve as an Invar wire exporter to clients overseas. Contact us directly for pricing and delivery.
Each wire batch undergoes strict quality checks. We conduct tests for tensile strength, thermal expansion, conductivity, and surface finish. As an Invar wire dealer and distributor, we guarantee that our products meet national and international standards before they reach you.
Advantages of Invar Wire
- Ultra-Low Thermal Expansion
- Excellent Corrosion Resistance.
- Good Strength and Toughness.
- Ease of Fabrication.
- Compatible with Cryogenic Applications.
Uses of Invar Wire
- Aerospace Industry
- Telecommunications
- Clocks and Watches
- Electronics
- Industrial Applications
Specification of Invar Wire
| Material Grade | Invar Wire |
|---|---|
| Standards | ASTM B163, ASME SB165 |
| Form | Wires, Rods |
| Size Range | 0.1 mm – 5 mm |
| Wall Thickness | N/A |
| Length | Single Random, Custom |
| Density | 8.19 g/cm³ |
| Tensile Strength | 900 MPa |
| Yield Strength (0.2% Offset) | 600 MPa |
| Elongation | 25% |
| Hardness | Rockwell B85 |
| Melting Point | 1450°C |
| Corrosion Resistance | Good in non-oxidizing environments |
| Applications | Aerospace, Telecommunications, Optical Engineering |
Available Types of Invar Wire
Invar Bright Wire
Invar MIG Wire
Invar Filler Wire
Invar Coil Wire
Invar Electrode Wire
Invar Welding Wire
Invar Wire Equivalent Grades
| STANDARD | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM F1684, ASTM B753, ASTM B752, ASTM B754 | 1.3912 | K93600 |
Chemical Composition Of Invar Wire
| Element | Ni | Cr | Fe | Mn | C | Si | Other Elements |
|---|---|---|---|---|---|---|---|
| Invar Wire | 36% | 0.5% | 63.5% | 0.5% | 0.02% | 0.05% | Copper (Cu) 0.1%, Sulfur (S) 0.01% |
Invar Wire Mechanical Properties
| Tensile Strength (MPa) | 900 |
|---|---|
| Yield Strength (0.2% Offset, MPa) | 600 |
| Elongation (%) | 25 |
| Hardness (Rockwell) | B85 |
| Modulus of Elasticity (GPa) | 210 |
| Poisson’s Ratio | 0.29 |
| Shear Modulus (GPa) | 80 |
| Density (g/cm³) | 8.19 |
| Reduction of Area (%) | 50 |
| Ultimate Tensile Strength (MPa) | 950 |
Invar Wire Size Chart
| Diameter (mm) | Diameter (inch) | Supply Form | Tolerance (mm) | Typical Coil/Spool Weight |
|---|---|---|---|---|
| 0.10 mm | 0.004 in | Fine wire / Spool | ±0.01 | 1 – 2 kg |
| 0.25 mm | 0.010 in | Spool / Coil | ±0.01 | 2 – 5 kg |
| 0.50 mm | 0.020 in | Coil / Spool | ±0.01 | 5 – 10 kg |
| 0.80 mm | 0.032 in | Coil / Spool | ±0.02 | 10 – 15 kg |
| 1.00 mm | 0.039 in | Coil / Straight | ±0.02 | 10 – 20 kg |
| 1.50 mm | 0.059 in | Coil / Straight | ±0.02 | 15 – 25 kg |
| 2.00 mm | 0.079 in | Coil / Straight | ±0.02 | 20 – 30 kg |
| 3.00 mm | 0.118 in | Coil / Straight | ±0.03 | 25 – 40 kg |
| 4.00 mm | 0.157 in | Straight Length | ±0.03 | 30 – 50 kg |
| 5.00 mm | 0.197 in | Straight Length | ±0.05 | 40 – 60 kg |
Application Industries of Invar Wire
Export Countries for Invar Wire
- ASIA – China, Thailand, Singapore, Sri lanka, Bangladesh, Japan, Philippines, Vietnam, Nepal, Bhutan
- Middle East – Kuwait, Dubai, Saudi Arabia, Qatar, Oman, Bahrain, Jordan
- Europe – United Kingdom, Italy, Belgium, France, Croatia, Spain, Germany, Russia, Denmark
- South America – Argentina, Chile, Brazil, Colombia, Paraguay
- Africa – Ghana, South Africa