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Hastelloy X Sheets & Plates Supplier in Mumbai, India – ASTM B435 UNS N06002
Nicorex Alloys is an ISO 9001 and ISO 14001 certified supplier, stockist, and trading company based in Mumbai, India. We supply Hastelloy X sheet and plate manufactured according to ASTM B435 / ASME SB435 / AMS 5536.
Alloy X (UNS N06002, Werkstoff Nr. 2.4665) is a solid-solution-strengthened nickel-chromium-iron-molybdenum superalloy with a nominal composition of Ni 47%, Cr 22%, Fe 18%, and Mo 9%. High-temperature oxidation resistance up to 1204°C (2200°F) is what sets Hastelloy X sheet and plate apart from every other nickel alloy flat product on the market. The relatively high carbon content (0.05-0.15%) drives creep strength at elevated temperatures, a trait absent in low-carbon corrosion-resistant grades like C-276 and C2000. Sheet thickness ranges from 0.5 to 4.76 mm; plate from 4.76 to 75 mm. Widths reach 2000 mm, lengths up to 6000 mm for sheets and 12000 mm for plates. High-temperature strength holds to 816°C (1500°F).
Available forms include hot-rolled plate, cold-rolled sheet, strip, coil, shim, clad plate, and perforated sheet. Standard sizes cover 1000×2000, 1220×2440, 1500×3000, and 2000×4000 mm. Surface finishes include #1 (HR annealed and descaled), #2D, #2B, and BA. All material ships in solution-annealed condition at 1177°C (2150°F) with rapid cooling. Density is 8.22 g/cm³ and the melting range falls between 1260-1355°C (2300-2470°F). Hastelloy X is non-magnetic (permeability < 1.002). Industries served include aerospace, gas turbine, industrial furnace, petrochemical, power generation, and nuclear energy. Every ASTM B435 Hastelloy X sheet and plate ships with EN 10204/3.1B mill test certificates, PMI reports, and full traceability documentation.
Hastelloy X Sheet & Plate Specifications
| Standards | ASTM B435 / ASME SB435 / AMS 5536 |
|---|---|
| Material Base | Nickel-Chromium-Iron-Molybdenum |
| Sheet Thickness | 0.5–4.76 mm (3/16 in.) |
| Plate Thickness | 4.76–75 mm |
| Width | Up to 2000 mm |
| Length | Up to 6000 mm (sheets), 12000 mm (plates) |
| Standard Sizes | 1000×2000, 1220×2440, 1500×3000, 2000×4000 mm |
| Process | Hot Rolled (HR), Cold Rolled (CR) |
| Condition | Solution Annealed (1177°C / 2150°F, rapid cooled), Bright Annealed |
| Edge | Mill, Slit, Sheared |
Chemical Composition of Alloy X Plate/Sheet
| Element | Nickel (Ni) | Chromium (Cr) | Iron (Fe) | Molybdenum (Mo) | Cobalt (Co) | Tungsten (W) | Carbon (C) | Silicon (Si) | Manganese (Mn) | Aluminium (Al) | Titanium (Ti) | Niobium (Nb) | Boron (B) | Phosphorus (P) | Sulfur (S) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Composition (wt%) | Balance (~47) | 20.5–23.0 | 17.0–20.0 | 8.0–10.0 | 0.5–2.5 | 0.2–1.0 | 0.05–0.15 | 1.0 max | 1.0 max | 0.50 max | 0.15 max | 0.50 max | 0.010 max | 0.04 max | 0.03 max |
Carbon at 0.05-0.15% is the key differentiator. This range sustains carbide precipitation that pins grain boundaries at service temperatures above 800°C. Cr at 22% forms a tenacious Cr₂O₃ film that resists spalling during thermal cycling of sheet and plate components.
Mechanical Properties of ASTM B435 Hastelloy X Sheet & Plate
| Property | Tensile Strength | Yield Strength 0.2% | Elongation | Hardness HRBW |
|---|---|---|---|---|
| Plate | 760 (110.2) | 340 (49.3) | 48.9 | 87 |
| Sheet | 783 (113.5) | 376 (54.5) | 46.5 | 86 |
| Unit | MPa (ksi) | MPa (ksi) | % | – |
| Temp (°C) | UTS (MPa) | YS (MPa) | Elong (%) | Strength Retained |
|---|---|---|---|---|
| 538 | 628 | 253 | 53.6 | 80% |
| 649 | 580 | 241 | 65.5 | 74% |
| 760 | 424 | 233 | 95.6 | 54% |
| 871 | 251 | 193 | 117.9 | 32% |
| 982 | 130 | 88 | 81.5 | 17% |
At 760°C, Alloy X sheet retains 54% of room-temperature tensile strength, which is critical for gas turbine and furnace component selection.
Physical Properties of Hastelloy X
Physical properties of Hastelloy X (UNS N06002) consist of density, melting range, magnetic permeability, and other information:
| Property | Density | Melting Range | Magnetic Permeability | Specific Heat (RT) | Thermal Conductivity (25°C) | CTE (26–100°C) | Electrical Resistivity (24°C) | Modulus of Elasticity (RT) | Poisson’s Ratio |
|---|---|---|---|---|---|---|---|---|---|
| Value | 8.22 g/cm³ (0.297 lb/in³) | 1260–1355°C (2300–2470°F) | < 1.002 (non-magnetic) | 486 J/kg·°C | 9.2 W/m·°C | 13.9 µm/m·°C | 114.83 µΩ·cm | 205 GPa (29.8 × 10⁶ psi) | 0.32 |
Hastelloy X Sheet & Plate Equivalent Grades
| Standard | UNS | Werkstoff Nr. | DIN |
|---|---|---|---|
| Designation | N06002 | 2.4665 | 17742 NiCr22Fe18Mo |
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Available Forms of Hastelloy X Sheet & Plate
Hastelloy X Hot Rolled Plate
Hastelloy X Cold Rolled Sheet
Hastelloy Alloy X Strip
Hastelloy X Coil
Hastelloy X Shim Sheet
Hastelloy X Clad Plate
Alloy X Perforated Sheet
Oxidation & Corrosion Resistance of Hastelloy X Sheet & Plate
Hastelloy X oxidation resistance is its defining characteristic. At 1095°C in flowing air, Alloy X sheet loses just 0.038 mm/side, compared to 0.083 mm for Inconel 625 and 0.137 mm for 800H. A stable Cr₂O₃ scale forms and resists spalling through repeated thermal cycles.
Hastelloy X plate is also resistant to carburisation and nitriding, conditions that degrade many other superalloys in pyrolysis service. Stress-corrosion cracking resistance in chloride-bearing petrochemical streams is strong. Furnace rolls made from Alloy X plate can operate for a long time at 1177°C without failure. For wet acid corrosion, C-276 or C2000 are preferred.
Hot Working, Cold Forming & Heat Treatment of Hastelloy Alloy X
Hot working range: 927-1177°C (1700-2150°F). Hold at 1177°C until uniform temperature. All hot-worked parts must be solution annealed. Cold forming uses all standard methods; 46-49% elongation gives strong formability. Anneal and rapid-cool after cold work.
Solution anneal at 1177°C (2150°F) with rapid cooling. Bright anneal in hydrogen atmosphere. Temperatures below 1177°C cause secondary-phase precipitation. Welding uses GTAW, GMAW, or SMAW with ERNiCrMo-2 (AWS A5.14) filler. No preheat; interpass below 93°C. SAW is not recommended. No PWHT required.
Industries Using Hastelloy X Sheet & Plate
- Combustor cans, transition ducts, spray bars, flame holders, afterburner components, and tailpipes (AMS 5536). Sheet is the primary combustion liner material.
- Furnace rolls, muffles, retorts, radiant tubes, and conveyor belts. Plates survived 8,700+ hours at 1177°C in neutral atmosphere.
- Pyrolysis tube sheets, flash drier components, catalyst support grids, and retort fabrication where carburisation and SCC resistance are needed.
- Gas turbine hot-section liners, HRSG duct linings, and exhaust system plates. ASME Section VIII Div.1 rates UNS N06002 to 899°C.
- Reactor vessel internals, control rod mechanisms, and fuel element spacer grids. Non-magnetic and radiation-stable at high temperatures.
How to Order Hastelloy X Sheet & Plate from Nicorex Alloys
To order Hastelloy X Sheet & Plate from Nicorex Alloys, please provide us with these following details:
- Product Form - Sheet, Plate, Strip, Coil, Foil, Clad Plate
- Thickness - Specify mm or gauge
- Width × Length - Sandard or custom cut
- Quantity - In kg, MT, or number of sheets
- Condition - Solution Annealed 1177°C, Bright Annealed
- Surface Finish - #1, #2B, BA, Mirror
- Edge Type - Mill, Slit, Sheared
- Standard - ASTM B435 / ASME SB435 / AMS 5536
- Additional Testing - TPI, PMI, UT, NACE MR0175
- Test Certificates - EN 10204 3.1/3.2
- Packaging Requirements - Standard, export-grade wooden case
- Delivery Destination - Domestic / Export
Frequently Asked Questions
What is the Difference Between Hastelloy X Sheet, Plate, Strip, and Coil?
Per ASTM B435, material under 4.76 mm (3/16 in.) is sheet; 4.76 mm and above is plate. Strip is sheet slit below 610 mm. Coil is strip or sheet in continuous roll form.
What Certifications and Testing Should I Expect with Hastelloy X Sheets and Plates?
EN 10204/3.1B MTC with chemical analysis, tensile test, and hardness. PMI, UT (plates), and NACE MR0175 on request.
What Welding Filler is Recommended for Hastelloy X Plate?
ERNiCrMo-2 (AWS A5.14) filler wire for GTAW/GMAW. Coated electrodes for SMAW. SAW is not recommended.
What ASTM and AMS Specifications Cover Hastelloy X Sheets?
ASTM B435 / ASME SB435 for sheet, plate, and strip. AMS 5536 for aerospace sheet and plate. UNS designation is N06002.