Seamless Incoloy 800HT tube
Seamless Incoloy 800HT tube is a high-performance seamless tube made of nickel-iron-chromium alloy. It is designed for extreme high-temperature and corrosive environments. The addition of stable titanium, aluminum, and carbon elements improves its creep resistance and long-term strength. It can be used in service conditions above 800℃ for a long time. The seamless structure ensures excellent pressure-bearing ability and medium tightness. It is widely used in core parts of petrochemical, nuclear power, and heat treatment industries.
Features of Seamless Incoloy 800HT tube
High-temperature resistance and oxidation resistance: Seamless Incoloy 800HT tube still has stable mechanical properties below 1100℃. The dense chromium oxide layer formed on the surface effectively resists high-temperature corrosion such as sulfidation and carburization.
Excellent mechanical properties: Seamless Incoloy 800HT tube has a tensile strength of more than 450MPa at high temperatures through solid solution strengthening and grain boundary stabilization. Its creep-rupture life is much better than that of ordinary stainless steel.
Chemical compatibility: Seamless Incoloy 800HT tube is resistant to acid and alkali, chloride stress corrosion, and is especially suitable for sulfur-containing oil and gas and molten salt environments.
Process adaptability: Seamless Incoloy 800HT tube supports cold bending, welding (with INCO series welding materials), and heat treatment. It is convenient for integrating into complex systems.

Applications of Seamless Incoloy 800HT tube
In the energy field: Seamless Incoloy 800HT tube is often made into nuclear power evaporator heat transfer tubes and supercritical boiler superheater pipes. It can withstand high-pressure steam above 540℃.
In the chemical processing industry: Seamless Incoloy 800HT tube is used in ethylene cracking furnace tubes and ammonia synthesis conversion furnace parts to resist the erosion of hydrogen and nitrogen compounds.
In industrial furnace technology: Seamless Incoloy 800HT tube is used in radiant heating tubes and muffle cans. It can achieve long-life and low-maintenance operation in continuous heat treatment production lines.

|
Parameter |
Typical Value / Range |
Standard |
|
Material Grade |
UNS N08811 / W.Nr. 1.4958 |
ASTM B407 / ASME SB407 |
|
Outer Diameter (OD) |
6 mm ~ 150 mm (customizable) |
EN 10216-5 / DIN 17458 |
|
Wall Thickness (WT) |
1 mm ~ 20 mm (varies with OD) |
– |
|
Length |
1 m ~ 12 m (fixed or random) |
– |
|
Manufacturing Process |
Hot/Cold Rolling + Solution Annealing |
– |
|
Density |
7.95 g/cm³ |
– |
|
Melting Range |
1350°C ~ 1400°C |
– |
|
Tensile Strength (RT) |
≥450 MPa |
ASTM B407 |
|
Yield Strength (RT) |
≥170 MPa |
– |
|
Elongation (RT) |
≥30% |
– |
|
Max Operating Temp |
1100°C (short-term) / 800°C (long-term) |
– |
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 Seamless Incoloy 800HT 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.
Hot Tags: seamless incoloy 800ht tube, China seamless incoloy 800ht tube suppliers, factory, Inconel 625 Pipe, Nickel Based Alloys, Kovar Seamless Pipe




