Durable Incoloy 825 High Strength Alloy Wire for Chemical Processing and Corrosion Resistance

1. Product Information‌

‌Product Name‌: Incoloy 825 Wire
‌Material Type‌: Nickel-Iron-Chromium-Molybdenum Superalloy
‌Standards‌: ASTM B423, ASTM B163, AMS 5767, DIN 2.4858
‌Forms Available‌: Round wire, flat wire, spooled wire, and customized profiles.
‌Diameter Range‌: 0.1 mm to 10.0 mm (customizable upon request).
‌Surface Finish‌: Bright annealed, pickled, or polished.

Operating Temperature‌: -200°C to 540°C (continuous service), with peak resistance up to 815°C (short-term).
‌Certifications‌: Compliant with NACE MR-0175/ISO 15156 for sour gas environments.

‌2. Characteristics‌

Incoloy 825 wire is a corrosion-resistant superalloy designed for severe chemical and thermal environments:

• ‌Acid Resistance‌: Exceptional performance in sulfuric, phosphoric, and nitric acids due to high Ni-Cr-Mo-Cu content.

• ‌Localized Corrosion Resistance‌: Resists pitting, crevice corrosion, and stress corrosion cracking (SCC) in chloride-rich media.

• ‌High-Temperature Strength‌: Retains mechanical integrity up to 540°C, with minimal carbide precipitation.

• ‌Oxidation Resistance‌: Stable Cr₂O₃ oxide layer prevents scaling in oxidizing atmospheres.

• ‌Fabrication Versatility‌: Easily welded (TIG, MIG), cold-formed, and machined with standard tools.

• ‌Low Thermal Expansion‌: Coefficient of 13.7 μm/m·°C (20–100°C) ensures dimensional stability under thermal cycling.

‌3. Technology‌

‌Manufacturing Process‌:

• ‌Melting‌: Vacuum induction melting (VIM) followed by electro-slag remelting (ESR) to minimize impurities (S, P < 0.015%).

• ‌Hot/Cold Working‌: Hot-rolled bars are cold-drawn to precise tolerances (±0.02 mm) using multi-pass dies.

• ‌Heat Treatment‌: Solution annealing at 925-980°C with water quenching to dissolve secondary phases and optimize ductility.

• ‌Surface Treatment‌: Electrolytic polishing or bright annealing in hydrogen to enhance surface smoothness.

‌Quality Control‌:

• X-ray fluorescence (XRF) for compositional accuracy.

• Ultrasonic testing for internal defects.

• Intergranular corrosion testing per ASTM G28 for sensitization resistance.

‌4. Theory‌

The alloy’s superior performance stems from its balanced metallurgical design:

• ‌Nickel Matrix‌: High Ni content stabilizes the austenitic structure, ensuring ductility and resistance to reducing acids.

• ‌Molybdenum & Copper Synergy‌: Mo provides resistance to chloride-induced SCC, while Cu enhances sulfuric acid corrosion resistance.

• ‌Titanium Stabilization‌: Ti combines with carbon to form TiC, preventing chromium carbide precipitation at grain boundaries (sensitization).

• ‌Passive Oxide Layer‌: Cr and Mo synergistically form a Cr-Mo-O passive film, self-repairing in aggressive media like hot hydrochloric acid.

• ‌Phase Stability‌: Low carbon content (<0.05%) and Ti addition suppress sigma-phase formation, retaining toughness in welded structures.

‌5. Application‌

Incoloy 825 wire is critical in industries requiring resilience to both corrosive and high-temperature conditions:

• ‌Chemical Processing‌: Wire mesh for acid pickling tanks, phosphoric acid evaporators, and sulfuric acid reactors.

• ‌Oil & Gas‌: Downhole wireline components, subsea umbilicals, and sour gas wellhead seals.

• ‌Pollution Control‌: Scrubber systems, flue gas desulfurization (FGD) components, and waste incineration hardware.

• ‌Nuclear Industry‌: Fuel rod cladding, reactor coolant system fasteners, and spent fuel handling tools.

• ‌Marine Engineering‌: Seawater heat exchanger springs, offshore platform bolts, and desalination plant fittings.

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

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9. Get good reviews from customers

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