Incoloy 800HT High Temperature Alloy Wire for Turbine Blades and Aerospace Engine Parts

1. Product Information‌

‌Product Name‌: Incoloy 800HT Wire
‌Material Type‌: Nickel-Iron-Chromium Superalloy (High-Temperature Variant)
‌Standards‌: ASTM B407, ASTM B408, AMS 5766, UNS N08811, DIN 1.4876
‌Forms Available‌: Round wire, flat wire, spooled wire, and custom-drawn profiles.
‌Diameter Range‌: 0.2 mm to 12.0 mm (customizable upon request).
‌Surface Finish‌: Bright annealed, pickled, or electro-polished.
‌Operating Temperature‌: Continuous service: Up to 870°C (1600°F), Short-term exposure: Up to 1100°C (2012°F)

‌Certifications‌: Compliant with NACE MR-0175 for sour gas resistance and ASME Boiler & Pressure Vessel Code.

‌2. Characteristics‌

Incoloy 800HT wire is a high-performance variant of Incoloy 800, designed for extreme temperature and stress conditions:

• ‌Superior Creep Resistance‌: High carbon content (0.06-0.10%) and controlled Al/Ti ratio enhance time-dependent deformation resistance at 600–900°C.

• ‌Oxidation & Carburization Resistance‌: Forms a dense Cr₂O₃-Al₂O₃ dual-layer oxide, protecting against scaling and carbon ingress in hydrocarbon-rich atmospheres.

• ‌Phase Stability‌: Retains austenitic structure without sigma-phase embrittlement even after prolonged thermal exposure.

• ‌Mechanical Strength‌: Tensile strength of 550-750 MPa at 800°C, with creep rupture life exceeding 10,000 hours at 700°C/100 MPa.

• ‌Thermal Fatigue Resistance‌: Low coefficient of thermal expansion (15.0 μm/m·°C at 20–600°C) minimizes stress during cyclic heating.

• ‌Fabrication Adaptability‌: Compatible with TIG, laser, and electron beam welding; cold-forming possible with intermediate annealing.

‌3. Technology‌

‌Manufacturing Process‌:

• ‌Vacuum Induction Melting (VIM)‌: Ensures precise control over carbon and impurity levels (S < 0.015%, P < 0.02%).

• ‌Thermomechanical Processing‌: Hot-rolled billets are cold-drawn with multi-pass dies to achieve ±0.015 mm dimensional accuracy.

• ‌Heat Treatment‌:

• Solution annealing at 1120-1170°C (2050-2140°F) to dissolve secondary phases.

• Rapid argon quenching to lock carbon in solid solution.

• ‌Surface Engineering‌: Electropolishing reduces surface roughness (Ra < 0.4 μm) for enhanced corrosion resistance.

‌Quality Control‌:

• Glow discharge spectrometry (GDS) for trace element analysis.

• Creep rupture testing per ASTM E139 at 700°C/100 MPa.

• Microstructural examination via SEM/EDS to verify carbide distribution.

‌4. Theory‌

The alloy’s exceptional high-temperature performance is rooted in its metallurgical design:

• ‌Solid Solution Strengthening‌: Nickel stabilizes the austenitic matrix, while chromium enhances oxidation resistance.

• ‌Carbon Optimization‌: Controlled carbon content promotes intragranular M₂₃C₆ carbides, which pin dislocations and inhibit creep deformation.

• ‌Aluminum-Titanium Synergy‌: Al and Ti combine with carbon to form fine (Ti,Al)C precipitates, strengthening grain boundaries against creep cavitation.

• ‌Thermal Stability‌: The Ni-Fe-Cr ternary system suppresses harmful phase transformations (e.g., sigma, chi phases) even after 10,000 hours at 800°C.

• ‌Self-Healing Oxide Layer‌: Chromium and aluminum oxides regenerate dynamically under thermal cycling, maintaining barrier integrity in oxidizing/carburizing environments.

‌5. Application‌

Incoloy 800HT wire is critical in industries requiring prolonged exposure to extreme heat and mechanical stress:

• ‌Petrochemical‌:

• Ethylene cracking furnace tubes, pyrolysis coil supports, and hydrogen reformer internals.

• Wire mesh for sulfur recovery unit (SRU) components.

• ‌Power Generation‌:

• Gas turbine combustion liners, exhaust ducting springs, and superheater tube hangers.

• Nuclear reactor control rod drive mechanisms.

• ‌Heat Treatment Industry‌:

• Fixtures for carburizing furnaces, annealing trays, and quenching basket assemblies.

• ‌Aerospace‌:

• Afterburner flame holders, turbine seal rings, and rocket engine injector elements.

• ‌Chemical Processing‌:

• Catalyst carrier grids in nitric acid plants and syngas reactors.

6. Parameters

Our Advantage

1. Market Leader

Top 5 in China's nonferrous metal industry

2. Flexible products

Thousands of product specifications,Meet multiple needs of buyers

3. Low MOQ

Can customize samples

4. Short production lead time，fast delivery of whole cabinet

5. Professional inspection equipment

Before delivery, we will use spectrometers, tensile testers and other professional equipment to conduct a comprehensive inspection of the products to ensure that the goods are qualified for acceptance

6. Professional business team

Quickly responds to customer inquiries,24-hour professional quotation online

The salesperson will follow the customer's requirements for the use of the product,Professionally recommend more appropriate performance and price products to customers

7. Intact packaging

Packaging according to customer needs.You can customize wooden boxes to ensure that the goods arrive at the destination in good condition

8. Various payment methods

Facilitate customer payment

9. Get good reviews from customers

Old customers have long-term cooperation,The longest is more than 7 years

10. Received various awards

Google is very recognized by us,They give us awards every year