TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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ASTM F1684 4J36, commonly known as Invar 36, is a specialized iron-nickel alloy renowned for its exceptional low thermal expansion properties. This makes it an ideal choice for applications where dimensional stability is crucial over a range of temperatures. The alloy is primarily composed of 36% nickel and 64% iron, which gives it unique characteristics that are highly valued in precision engineering fields.
The ASTM F1684 standard outlines the specifications for Invar 36 capillary tubes, ensuring they meet the necessary requirements for low thermal expansion applications. These tubes are manufactured to precise dimensions and tolerances, making them suitable for use in scientific instruments, aerospace components, and other high-precision environments.
The chemical composition of Invar 36 is critical to its performance. Below is a table detailing its typical composition:
| Element | Composition (%) |
|---|---|
| Nickel | 36.0 |
| Iron | 63.0 - 64.0 |
| Carbon | ≤ 0.05 |
| Manganese | ≤ 0.60 |
| Silicon | ≤ 0.30 |
| Sulfur | ≤ 0.025 |
| Phosphorus | ≤ 0.025 |
The mechanical properties of Invar 36 are equally important, ensuring it can withstand the demands of its applications. The table below outlines these properties:
| Property | Value |
|---|---|
| Density | 8.11 g/cm³ |
| Tensile Strength | 490 MPa (71,000 psi) |
| Yield Strength | 240 MPa (35,000 psi) |
| Elongation | 30% |
| Modulus of Elasticity | 141 GPa (20,500 ksi) |
Invar 36 is classified under the steel grade 4J36, which is specifically designed for applications requiring low thermal expansion. This grade is part of the broader family of iron-nickel alloys, each tailored for specific performance characteristics.
Invar 36 capillary tubes are used in a variety of applications, including:
While Invar 36 is highly specialized, there are alternative grades that may be suitable for certain applications, depending on specific requirements:
A: manufacturer,also can do trading.
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
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