During a critical overhaul of a 400MW industrial gas turbine, engineers discovered that containment rings fabricated from conventional solid-solution alloys had lost 40% of their yield strength after 15,000 hours at 650°C, risking catastrophic blade release. The solution was Haynes® 242 Sheets (UNS N10242) – an age-hardenable nickel-molybdenum-chromium alloy delivering double the creep-rupture strength with exceptional ductility retention and low thermal expansion. This upgrade extended inspection intervals to 30,000+ hours, preventing $8M in potential damages while improving turbine availability by 3.2%.
Table of Contents
Tailored for procurement heads, engineers, fabricators, and OEM manufacturers in chemical processing, oil & gas, marine propulsion, pharmaceutical equipment, and power generation, Haynes® 242 outperforms solid-solution alloys like Nimonic 81 through its unique long-range ordering (LRO) strengthening mechanism. Aged at 649-704°C, it achieves yield strengths ≥1000 MPa with 30-65% elongation – ideal for gas turbine casings, containment rings, high-strength fasteners, and duct segments where both strength and ductility are mission-critical.
Aurico Alloys LLP serves as your trusted Haynes® 242 Sheets supplier, stockist, and exporter in India to abroad, providing affordable, authentic, best-quality material for chemical, oil & gas, marine, pharma, and power industries plus hardware stores. With Haynes® 242 ready stock India, competitive UNS N10242 sheet price per kg, and precision Haynes® 242 sheet cut to size services, Aurico ensures rapid project deployment with full traceability.
Complementing Haynes® 242 for high-strength static components, Aurico supplies Nimonic 81 sheets supplier stock for gas turbine combustion chambers where oxidation resistance is paramount, creating a complete hot-section material solution with consistent quality control across age-hardenable and solid-solution alloy families.
High-quality Haynes® 242 Sheets ready for industrial use.
Specification Overview
| Supplier | Aurico Alloys LLP – Haynes 242 sheets supplier/export |
|---|---|
| Grade | Haynes® 242 (UNS N10242) |
| Standards | ASTM B435 (sheet/plate), AMS 5838/5839 |
| Thickness | 0.5-25mm (Haynes 242 sheet cut to size) |
| Condition | Solution annealed + aged (LRO strengthened) |
| Price | INR 5,000 – 15,000 per kg. Indicative USD 60 – 175 per kg; quoted against grade, form, size and quantity. |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N10242 |
| Density | 9.05 g/cm3 |
| Melting range | 1290-1375 °C |
| Electrical resistivity | 122.0 µΩ·cm |
| Thermal diffusivity | 0.0305 cm²/s |
| Thermal conductivity | 11.3 W/m·°C |
| Specific heat | 386 J/kg·°C |
| Coefficient of expansion (25-100 °C) | 10.8 µm/m·°C |
| Dynamic modulus of elasticity | 229 GPa |
| Plate, sheet and strip specification | ASTM B434 |
Identifiers and physical constants for Haynes 242. A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico Alloys LLP offers competitive Haynes 242 price per kg with ready stock optimized for gas turbine OEMs fabricating containment rings and high-strength fasteners. Global Haynes 242 exporter services complement Nimonic 81 stockist capabilities for complete turbine hot-section supply chains.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | — | Balance |
| Molybdenum (Mo) | 25 nominal | |
| Chromium (Cr) | 8 nominal | |
| Iron (Fe) | — | 2 |
| Cobalt (Co) | — | 1 |
| Manganese (Mn) | — | 0.8 |
| Silicon (Si) | — | 0.8 |
| Aluminium (Al) | — | 0.5 |
| Carbon (C) | — | 0.03 |
| Boron (B) | — | 0.006 |
Composition for Haynes 242. Figures given as a range or a maximum are limits and those marked nominal are not; none of them are measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Mechanical Properties
| Condition | Yield (MPa) | Tensile (MPa) | Elong. (%) |
|---|---|---|---|
| Solution Annealed | 419 | 909 | 65 |
| Aged (704°C) | ≥1000 | 1290 | 33 |
| Creep 650°C/100h | - | 570 | - |
| Thermal Exp. Coeff. | Low (vs Ni-Cr) | - | - |
Applications & Superiority vs Common Alloys
Why this grade
Haynes® 242 is strengthened by long-range ordering of a Ni2(Mo,Cr) phase rather than by gamma prime. It delivers very high strength to about 700°C together with a low coefficient of thermal expansion, and it is that combination — strength plus dimensional stability — that puts it into aircraft engine seal rings, containment rings, ducting and fasteners.
- Chemical: High-pressure reactor vessels, fluoride service equipment – Mo content resists aggressive chemistries
- Oil & Gas: Gas turbine transition ducts, high-strength bolting – double creep life vs 625
- Marine: Propulsion casings where low expansion prevents distortion
- Pharma: Sterile high-temperature fixtures maintaining ductility post-exposure
- Power: Gas turbine casings & containment rings – industry standard for OEMs
- Hardware/OEM: High-temperature fasteners, precision sheet fabrications
FAQ & Search Trends
Global Export Destinations
We ship worldwide from Mumbai. See every destination we export to on our export markets page.
Domestic Supply Network
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Haynes® 242 sheets from Aurico Alloys LLP provide UNS N10242 age-hardened performance with unmatched 704°C creep resistance, ductility retention, and low thermal expansion for your most demanding gas turbine casings, containment rings, and high-strength fasteners. Is your turbine fleet protected by the containment alloy that doubles service life without sacrificing ductility?