Premium Incoloy 800 High Temperature Alloy Wire for Heat Exchanger and Furnace Applications

1. Product Information‌

‌Product Name‌: Incoloy 800 Wire
‌Material Type‌: Nickel-Iron-Chromium Superalloy
‌Standards‌: ASTM B408, ASTM B409, AMS 5766, DIN 2.4858
‌Forms Available‌: Round wire, flat wire, spooled wire, and custom profiles.
‌Diameter Range‌: 0.1 mm to 12.7 mm (customizable upon request).
‌Surface Finish‌: Bright annealed, pickled, or polished.
‌Operating Temperature‌: -200°C to 800°C (short-term), with optimal performance at 540-760°C.

‌Certifications‌: Compliant with NACE MR-0175 for sour service environments.

‌2. Characteristics‌

Incoloy 800 wire is engineered for extreme environments, offering a unique combination of properties:

• ‌High-Temperature Stability‌: Maintains tensile strength and creep resistance up to 800°C due to its austenitic structure.

• ‌Oxidation & Carburization Resistance‌: Forms a protective Cr₂O₃ oxide layer at elevated temperatures, resisting scaling and carbon absorption.

• ‌Corrosion Resistance‌: Excellent resistance to sulfuric acid, nitric acid, alkaline solutions, and chloride-induced stress corrosion cracking.

• ‌Mechanical Strength‌: Typical tensile strength of 500-700 MPa (annealed condition) with elongation exceeding 30%.

• ‌Fabrication Flexibility‌: Easily cold-worked, welded (TIG, MIG), and machined using standard tooling.

• ‌Thermal Cycling Resistance‌: Low coefficient of thermal expansion (14.4 μm/m·°C at 20–100°C) minimizes distortion under cyclic heating.

‌3. Technology‌

‌Manufacturing Process‌:

• ‌Melting‌: Vacuum induction melting (VIM) ensures precise control over impurities (e.g., sulfur, phosphorus).

• ‌Hot/Cold Working‌: Hot-rolled billets are cold-drawn through diamond dies to achieve tight dimensional tolerances (±0.01 mm).

• ‌Heat Treatment‌: Solution annealing at 980-1030°C followed by rapid quenching to stabilize the microstructure.

• ‌Surface Treatment‌: Bright annealing in hydrogen atmosphere to prevent oxidation and enhance surface finish.

‌Quality Control‌:

• Spectrochemical analysis for composition verification.

• Non-destructive testing (eddy current) for surface defects.

• Mechanical testing (hardness, tensile) per ASTM E8/E21 standards.

‌4. Theory‌

Incoloy 800 derives its performance from advanced metallurgical principles:

• ‌Solid Solution Strengthening‌: High Ni content stabilizes the FCC austenitic matrix, enhancing ductility and fracture toughness.

• ‌Chromium Oxide Layer‌: Cr reacts with oxygen to form a self-healing Cr₂O₃ layer, providing continuous protection against oxidation.

• ‌Precipitation Hardening‌: Controlled additions of Al and Ti promote fine (Ti,Al)C carbides at grain boundaries, improving creep resistance.

• ‌Thermodynamic Stability‌: The Ni-Fe-Cr ternary system minimizes σ-phase embrittlement and retains phase stability under prolonged thermal exposure.

‌5. Application‌

Incoloy 800 wire is widely used in industries demanding reliability under aggressive conditions:

• ‌Petrochemical‌: Wire mesh for catalyst grids, furnace internals, and reformer tubes in hydrogen sulfide environments.

• ‌Power Generation‌: Heating element windings, thermocouple sheaths, and boiler tube supports in coal-fired and nuclear plants.

• ‌Aerospace‌: Combustion chamber liners, exhaust seals, and afterburner components.

• ‌Heat Treatment‌: Basket fixtures and conveyor belts for annealing/carburizing furnaces.

• ‌Chemical Processing‌: Fasteners, springs, and gaskets in nitric acid production equipment.

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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