Invar alloy Seamless 1j29 tube
The Invar alloy Seamless 1j29 tube is a low-expansion alloy. Its seamless tube is made by precision cold rolling or cold drawing. It has a uniform microstructure and excellent dimensional stability. The Invar alloy Seamless 1j29 tube has a very low thermal expansion coefficient (≤1.5×10⁻⁶/°C) from -60°C to +200°C. It is suitable for high-precision situations that are sensitive to temperature changes. The surface of the Invar alloy Seamless 1j29 tube is usually polished or passivated. This ensures its corrosion resistance and cleanliness. It meets the strict requirements of aerospace and optical instruments.
The Invar alloy Seamless 1j29 tube is widely used because of its ultra-low thermal expansion. It is used in aerospace (satellite frames, optical mirror tubes), precision instruments (lasers, telescope frames), electronics (semiconductor vacuum lines), and energy (LNG cryogenic supports). The Invar alloy Seamless 1j29 tube ensures dimensional stability in extreme temperatures. It meets the needs for high precision and reliability.
Features of Invar alloy Seamless 1j29 tube
Ultra-low thermal expansion: The unique composition of Invar alloy Seamless 1j29 tube makes it almost unchanged in size over a wide temperature range. It avoids deformation caused by thermal stress.
High strength and rigidity: The seamless manufacturing process of Invar alloy Seamless 1j29 tube improves its mechanical properties. It has a tensile strength of over 500MPa and is still lightweight.
Excellent sealing performance: The seamless structure of Invar alloy Seamless 1j29 tube has no weld defects. It is suitable for high vacuum or high-pressure environments like semiconductor device chambers.
Good machinability: Invar alloy Seamless 1j29 tube can be precisely turned, welded (with special welding materials) and coated on the surface.
Applications of Invar alloy Seamless 1j29 tube
Aerospace: Invar alloy Seamless 1j29 tube is used in satellite frames and spacecraft optical mirror tubes to offset the risk of deformation in extreme temperatures.
Precision instruments: Invar alloy Seamless 1j29 tube is used as the material for laser resonator cavities and astronomical telescope frames. It ensures the long-term alignment accuracy of optical components.
Electronics: Invar alloy Seamless 1j29 tube is used in the carriers or vacuum lines of chip manufacturing equipment to reduce the impact of thermal drift on the process.
Energy sector: Invar alloy Seamless 1j29 tube is used as the support parts of liquefied natural gas (LNG) pipelines to meet the size stability requirements in ultra-low temperature environments.
|
Parameter |
Specification Range |
Remarks |
|
Outer Diameter (OD) |
3 mm ~ 150 mm |
Custom sizes available |
|
Wall Thickness (WT) |
0.5 mm ~ 10 mm |
Ultra-thin/thick walls upon request |
|
Length |
500 mm ~ 6000 mm (custom up to 12m) |
Precision-cut lengths available |
|
Thermal Expansion Coefficient |
≤1.5×10⁻⁶/°C (-60°C to +200°C) |
Typical value: ~1.2×10⁻⁶/°C |
|
Density |
8.1 g/cm³ |
-- |
|
Tensile Strength |
≥500 MPa |
Annealed state (~500 MPa), higher after cold working |
|
Yield Strength |
≥280 MPa |
-- |
|
Elongation |
≥30% (annealed) |
Reduced after cold working |
|
Surface Finish |
Polished/Pickled/Passivated |
Custom finishes available |
|
Standards |
ASTM F1684, GB/T 15018 (China) |
Other standards upon request |
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 Seamless 1j29 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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