Invar alloy 4j36 tube
Invar alloy 4j36 tube is a nickel-iron low-expansion alloy. Its typical composition is 36% nickel and 64% iron. It also has a small amount of carbon, manganese and other elements. It is made into hollow tubes by precision cold rolling or hot working. It has excellent dimensional stability and a very low thermal expansion coefficient. The thermal expansion coefficient is close to 1.5×10⁻⁶/℃ between room temperature and 100℃. The surface of Invar alloy 4j36 tube is usually polished or passivated. It is suitable for high-precision environments.
Invar alloy 4j36 tube has a very low thermal expansion coefficient of 1.5×10⁻⁶/℃ and excellent dimensional stability. It is widely used in high-precision fields. It is used in semiconductor equipment carriers, LNG low-temperature supports, satellite structural parts and optical instrument supports. It can solve the deformation caused by temperature differences. It ensures the reliable operation of precision systems in extreme environments.
Features of Invar alloy 4j36 tube
Ultra-low thermal expansion: The thermal expansion coefficient of Invar alloy 4j36 tube is very low over a wide temperature range (-80℃ to +100℃). The size change caused by temperature change is almost negligible.
High dimensional stability: Invar alloy 4j36 tube can keep its shape even after long-term use or temperature cycling. It has excellent anti-creep performance.
Good mechanical properties: Invar alloy 4j36 tube has medium strength and toughness. It is easy to machine and weld. Special welding materials are needed.
Environmental adaptability: Invar alloy 4j36 tube can stand heat and cold. It has stable performance in extreme temperatures. In some environments, it needs plating to prevent corrosion.
Applications of Invar alloy 4j36 tube
Precision instruments: Invar alloy 4j36 tube is used in parts that are sensitive to thermal expansion, such as optical measuring devices, astronomical telescope supports and laser cavities.
Electronic industry: Invar alloy 4j36 tube is used in carrier tubes and vacuum-sealed cavities in semiconductor manufacturing equipment. It prevents thermal displacement from affecting precision.
Energy field: Invar alloy 4j36 tube is used in LNG pipeline supports. It can adapt to the size contraction in low-temperature environments.
Aerospace: Invar alloy 4j36 tube is used in satellite structural parts and spacecraft thermal control system pipes. It ensures reliability in extreme temperature differences.
|
Parameter |
Specification Range |
Remarks |
|
Outer Diameter (OD) |
3mm ~ 200mm |
Custom sizes available |
|
Wall Thickness (WT) |
0.5mm ~ 20mm |
Thin/thick wall options |
|
Length |
Custom (typically 1m ~ 6m) |
Precision cutting service |
|
CTE (Coefficient of Thermal Expansion) |
1.5×10⁻⁶/°C (20°C~100°C) |
Ultra-low expansion |
|
Density |
8.1 g/cm³ |
Similar to steel |
|
Tensile Strength |
≥440 MPa |
Can be heat-treated |
|
Yield Strength |
≥280 MPa |
Depends on processing |
|
Elongation |
≥30% |
Excellent ductility |
|
Surface Finish |
Polished/Pickled/Passivated |
For corrosion resistance |
|
Standards |
ASTM F1684, GB/T 15018, DIN 17745 |
International compliance |
FAQ
Are you a factory or manufacturer?
A: Yes, we are a factory but we generally use our trading company to handle the business abroad. It will be more convenient to receive the remittance and arrange the shipment.
What is the delivery method?
A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.
Why is your product so cost-effective?
A: We cut out the middlemen in the end-to-end manufacturing process and we obtain raw material directly from its source.
Do you do spot quality inspection or full inspection?
A: 100% full inspection for sure. All unqualified products are discarded.
How do you ensure your lead time?
A: From material preparation to machining and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.
What is the MOQ of Invar alloy 4j36 tube?
A: Depends on quantity, generally, no MOQ limit.
How to pay for it?
A: A bank transfer (T/T) will be acceptable.
What is the delivery time?
A: around 7-20 days which depends on the quantity and production.
What is kind of the package?
A: Generally, we use a carton case or plywood case with protective material inside to ensure the save of cargo
What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.
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