Alloy X Sheet

Alloy X Sheet, with UNS number N06002 and German grade 2.4665, corresponds to the ISO standard NiCr21Fe18Mo9. This sheet material is characterized by excellent high-temperature oxidation resistance, formability, weldability, and resistance to stress corrosion cracking. HT PIPE is a ams 5536 hastelloy x sheet supplier with 15+ export experience. Contact us for more information and quotes for free!

We offers Alloy X in a variety of forms, including:

• Bar
• Wire
• Sheet
• Plate
• Forgings
• Pipe fittings
• Flanges
• Seamless & Welded pipe
• Seamless Tube & Welded tube
• Weld Rod

ASTM B435 Hastelloy X Standard Specification

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Hastelloy n06002 plate Physical Properties

Density: 8.28-8.3 g/cm³. Melting temperature range: 1260-1355℃. Thermal conductivity: 13.38 W/(m·℃) (at 100℃). Specific heat capacity: 372.6 J/(kg·℃). Elastic modulus: 199 GPa. Shear modulus: 1.18 GPa. Electrical resistivity: 12.1 μΩ·m (20-100℃). Coefficient of linear expansion: 12.1 × 10⁻⁶/℃ (20-100℃).

alloy x sheet Mechanical Properties (Minimum values ​​tested at 20℃ after solution treatment)

Tensile strength ≥ 690 MPa. Yield strength ≥ 275 MPa. Elongation ≥ 30%. Brinell hardness ≥ 241 HBS. This sheet material maintains good ductility after 16,000 hours of long-term exposure at 650-870℃. It can be used long-term below 900℃, with a short-term working temperature up to 1080℃, and still exhibits excellent oxidation resistance at 1200℃.

alloy n06002 plate Corrosion Resistance and High-Temperature Performance

It is resistant to oxidation, reduction, and neutral atmospheres, and resists carburization, nitriding, and sulfide corrosion. In petrochemical conditions, it effectively resists stress corrosion cracking. A dense and stable oxide film forms on its surface, which is not easily detached. Industrial furnace rollers made of this material remained in good condition after 8700 hours of service at 1177℃.

Hastelloy X Sheet Processing and Heat Treatment Processes

alloy 2.4665 plate Hot and Cold Working

The hot working temperature is 1177℃. It is necessary to ensure that the entire workpiece reaches this temperature before forging or other processing. Cold working performance is excellent, with a work hardening rate similar to austenitic stainless steel. In the annealed state, it can be formed using conventional cold working processes. If the metal temperature falls below the minimum processing temperature during processing, reheating is required.

hastelloy 2.4665 plate Welding Process

Supports various welding methods, including gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), shielded metal arc welding (SMAW), and resistance welding. Before welding, the sheet material should be in the solution-treated state, with surface oxides, oil, and markings removed. The area within 25mm on both sides of the weld should be polished to a bright metal surface.

Welding should use low heat input, with an interpass temperature not exceeding 100℃. Pre- and post-weld heat treatment is not required. Recommended welding materials are AWS A5.14 ERNiCrMo-2 (GTAW/GMAW) and AWS A5.11 ENiCrMo-2 (SMAW).

astm hastelloy x sheet Heat Treatment Process

The conventional solution heat treatment temperature is 1177℃, followed by rapid cooling after soaking. Bright annealed products are cooled in hydrogen. If the annealing temperature is lower than the solution treatment temperature, secondary phase precipitation may occur, affecting the alloy's strength and ductility.

Welded parts or combustion chambers can be treated at 980℃±10℃ for 60 minutes followed by air cooling. Stress relief after machining is performed at 870℃±10℃ for 30-60 minutes followed by air cooling. Dimensional stabilization treatment is performed at 760℃±10℃ for 2 hours followed by air cooling.

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