Aerospace Incoloy 800HT fasteners
Aerospace Incoloy 800HT fasteners are high - performance fasteners made from nickel - iron - chromium alloy. They are designed for extreme environments. These fasteners are strengthened by adding titanium and aluminum and then treated through solid - solution strengthening. They have excellent high - temperature resistance, oxidation resistance, and creep resistance. They are used in tough conditions like aerospace and energy chemical industries.
Aerospace Incoloy 800HT fasteners are widely used in many places. They are used as bolts in aircraft engine combustion chambers and connectors in spacecraft high - temperature pipelines. They are also used in bolts for nuclear power pressure vessels and gas turbines. These fasteners are in high - temperature and high - pressure environments. Their corrosion resistance makes them a good choice for petrochemical cracking furnaces and heat exchangers. They can greatly improve the reliability and life of equipment in extreme conditions.
Features of Aerospace Incoloy 800HT fasteners
Excellent high - temperature resistance: Aerospace Incoloy 800HT fasteners can work for a long time at over 700°C. They can also withstand temperatures up to 1100°C in the short term. Their high - temperature strength is much better than that of ordinary stainless steel.
Oxidation and corrosion resistance: The high chromium content (19 - 23%) of Aerospace Incoloy 800HT fasteners forms a dense oxide film. This film resists the attack of sulfides, chlorides and acidic media.
Low thermal expansion coefficient: Aerospace Incoloy 800HT fasteners have excellent thermal stability. This reduces stress deformation caused by thermal cycling. They are suitable for parts of aircraft engines with large temperature differences.
High processing requirements: Aerospace Incoloy 800HT fasteners need to be processed by precision cold - heading or hot - forming. They are then treated by aging to improve their mechanical properties. For example, the tensile strength is at least 450 MPa.
Applications of Aerospace Incoloy 800HT fasteners
Aerospace: Aerospace Incoloy 800HT fasteners are used in the flange bolts of jet engine combustion chambers and the fasteners of turbine casings. They are also used in the high - temperature pipeline connection systems of spacecraft.
Energy industry: Aerospace Incoloy 800HT fasteners are used in the bolts of nuclear reactor pressure vessels and the high - temperature bolts of gas turbines. They can withstand high - pressure steam environments for a long time.
Chemical equipment: Aerospace Incoloy 800HT fasteners are used in the acid - and heat - resistant fasteners of petrochemical cracking furnaces and heat exchangers. They replace traditional 316 stainless steel to extend the life of the equipment.
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Parameter |
Typical Value / Range |
Remarks |
|
Material Standard |
UNS N08811 / W.Nr. 1.4958 / AMS 5876 |
Complies with aerospace & high-temp standards |
|
Composition |
Ni: 30-35%, Cr: 19-23%, Fe: ≥39.5% |
Ti, Al (≤0.6%) for creep resistance |
|
Tensile Strength |
≥450 MPa (RT) |
Maintains ≥250 MPa at 700°C |
|
Yield Strength |
≥170 MPa (RT) |
Minimal degradation at high temps |
|
Elongation |
≥30% |
Ensures ductility for fatigue resistance |
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Hardness |
HRB 65-90 / HV 150-200 |
Varies with heat treatment |
|
Temperature Range |
Long-term: -200°C to +750°C |
Excellent oxidation resistance (to 1100°C) |
|
Short-term: Up to 1100°C |
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|
Thermal Expansion |
14.4 μm/m·°C (20-1000°C) |
Low expansion reduces thermal stress |
|
Thread Sizes |
M3 – M36 (Metric) |
Covers common aerospace fastener sizes |
|
#4 – 1" (Imperial) |
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Surface Finish |
Passivated or High-Temp Silver Plated |
Enhances corrosion/anti-galling properties |
|
Certifications |
AMS 5876, ASTM B409, ISO 15156-3 |
Suitable for sour gas (NACE) & aerospace |
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 Aerospace Incoloy 800HT fasteners ?
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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