When a European aerospace prime faced containment ring failures costing €8M in scrapped turbine casings, the fix wasn't thicker walls but Haynes® 242 UNS N10242 foil precision overlays cutting thermal expansion mismatch by 35% and extending inspection intervals from 1,200 to 4,500 hours. Procurement teams across chemical, oil & gas, marine, pharma, and power now specify Haynes 242 over Hastelloy S where dimensional stability meets extreme creep demands .
Table of Contents:
Detailed Introduction
Haynes 242 foil (UNS N10242, Haynes International mill specification) delivers age-hardenable nickel-molybdenum-chromium performance with ultra-low thermal expansion (6.2 × 10⁻⁶ in/in/°F to 1000°F) perfect for aerospace seal rings and containment rings where micron-level clearances prevent hot gas bypass. Unlike Hastelloy S, its long-range ordering boosts 100-hour rupture strength at 1200°F from 25 ksi to 42 ksi, critical for gas turbine duct segments and casings under cyclic thermal shock .
Aurico Alloys LLP serves as your trusted Haynes 242 foil supplier in Mumbai, stocking thin gauge 0.025mm-0.1mm foils for honeycomb structures, HF acid vapor processes, and fluoride salt chemical reactors. We outperform commodity suppliers with verified Haynes 242 stockholders in Maharashtra credentials, full MTC EN 10204 3.1 certification, and custom slit UNS N10242 foil coils for specialized aerospace stamping slashing lead times 60% for OEM fabricators .
Engineers choose Haynes UNS N10242 over Inconel 718 because its controlled thermal expansion (30% lower than Ni-Cr competitors) eliminates gasket failures in rocket nozzle seals, while superior fatigue strength supports high-cycle pump impellers in aggressive fluoride environments extending MTBF by 250% in fluoroelastomer processing .
Haynes 242 vs Hastelloy S: Containment Ring Performance
| Property @ 1150°F | Haynes 242 UNS N10242 | Hastelloy S | Advantage |
|---|---|---|---|
| 100-hr Rupture Strength | 42 ksi | 25 ksi | 68% stronger |
| Thermal Expansion (RT-1000°F) | 6.2 × 10⁻⁶ | 9.1 × 10⁻⁶ | 32% lower distortion |
| Post-Aging Ductility | 28% elongation | 15% elongation | Better formability |
| HF Corrosion Rate (Boiling) | <0.1 MPY | 0.5 MPY | 5x better resistance |
Specification Overview
| Supplier & Stockist | Aurico Alloys LLP - Haynes 242 foil supplier Mumbai |
|---|---|
| Grade | Haynes 25, 188, 214, 230, 242 and 282 |
| Standards | One plate, sheet and strip specification per grade – listed in Equivalent Grades & Standards below. Inspection certificates to EN 10204. |
| Thickness Range | 0.025mm – 0.1mm (honeycomb), up to 0.5mm |
| Width | 6mm – 1000mm, custom aerospace slitting |
| Finish | Annealed, age-hardenable, ultra-clean |
| Delivery | India stockist to global defense export |
| Price | INR 5,000 – 15,000 per kg. Indicative USD 60 – 175 per kg; quoted against grade, form, size and quantity. |
Equivalent Grades & Standards
Haynes 25
| Property | Value |
|---|---|
| UNS number | R30605 |
| Werkstoff / EN number | 2.4964 |
| EN designation | CoCr20W15Ni |
| Density | 9.07 g/cm3 |
| Melting range | 1330-1410 °C |
| Electrical resistivity | 88.6 µΩ·cm |
| Thermal diffusivity | 0.0283 cm²/s |
| Thermal conductivity (25 °C) | 10.5 W/m·°C |
| Specific heat (25 °C) | 403 J/kg·°C |
| Coefficient of expansion (25-100 °C) | 12.8 µm/m·°C |
| Dynamic modulus of elasticity | 225 GPa |
| Plate, sheet and strip specification | AMS 5537 |
Identifiers and physical constants for Haynes 25. A dash means no such designation is published for this grade.
Haynes 188
| Property | Value |
|---|---|
| UNS number | R30188 |
| Werkstoff / EN number | 2.4683 |
| EN designation | CoCr20NiW |
| Density | 8.98 g/cm3 |
| Melting range | 1300-1415 °C |
| Electrical resistivity | 101.0 µΩ·cm |
| Thermal diffusivity | 0.0292 cm²/s |
| Thermal conductivity | 10.4 W/m·°C |
| Specific heat (100 °C) | 423 J/kg·°C (RT cell on the source page is corrupt - see note above) |
| Coefficient of expansion (25-100 °C) | 12.1 µm/m·°C |
| Dynamic modulus of elasticity | 232 GPa |
| Modulus of rigidity (dynamic) | 90 GPa |
| Poisson's ratio | 0.30 |
| Plate, sheet and strip specification | AMS 5608 |
Identifiers and physical constants for Haynes 188. A dash means no such designation is published for this grade.
Haynes 214
| Property | Value |
|---|---|
| UNS number | N07214 |
| Melting range | 1355-1400 °C |
| Electrical resistivity | 135.9 µΩ·cm |
| Thermal diffusivity | 0.0336 cm²/s |
| Thermal conductivity | 12.0 W/m·°C |
| Specific heat | 452 J/kg·°C |
| Coefficient of expansion (25-200 °C) | 13.3 µm/m·°C |
| Dynamic modulus of elasticity | 218 GPa |
| Plate, sheet and strip specification | Mill specification |
Identifiers and physical constants for Haynes 214. A dash means no such designation is published for this grade.
Haynes 230
| Property | Value |
|---|---|
| UNS number | N06230 |
| Werkstoff / EN number | 2.4733 |
| EN designation | NiCr22W14Mo |
| Density | 8.97 g/cm3 |
| Melting range | 1301-1371 °C |
| Electrical resistivity | 125.0 µΩ·cm |
| Thermal diffusivity | 0.0242 cm²/s |
| Thermal conductivity | 8.9 W/m·°C |
| Specific heat | 397 J/kg·°C |
| Coefficient of expansion (25-100 °C) | 11.8 µm/m·°C |
| Dynamic modulus of elasticity | 209 GPa |
| Modulus of rigidity (dynamic) | 79 GPa |
| Poisson's ratio | 0.31 |
| Plate, sheet and strip specification | ASTM B435 / AMS 5878 |
Identifiers and physical constants for Haynes 230. A dash means no such designation is published for this grade.
Haynes 242
| 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.
Haynes 282
| Property | Value |
|---|---|
| UNS number | N07208 |
| Density | 8.27 g/cm3 |
| Melting range | 1300-1375 °C |
| Density (Age-hardened) | 8.29 g/cm3 |
| Plate, sheet and strip specification | AMS 5951 |
Identifiers and physical constants for Haynes 282. A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico Alloys LLP maintains Haynes 242 UNS N10242 foil stock in Maharashtra for Haynes International mill specification Haynes 242 rod and bar stockist needs, UNS N10242 age-hardenable alloy foil for gas turbine duct segments, and thin gauge foils for chemical pump/rocket nozzle seals. Leading Haynes 242 UNS N10242 exporter serving the global defense sector.
Chemical Composition (Haynes International mill specification)
Haynes 25
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | 0.05 | 0.15 |
| Silicon (Si) | — | 0.40 |
| Manganese (Mn) | 1.00 | 2.00 |
| Phosphorus (P) | — | 0.040 |
| Sulfur (S) | — | 0.030 |
| Chromium (Cr) | 19.00 | 21.00 |
| Nickel (Ni) | 9.00 | 11.00 |
| Tungsten (W) | 14.00 | 16.00 |
| Cobalt (Co) | — | Balance |
| Iron (Fe) | — | 3.00 |
Composition limits for Haynes 25. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Haynes 188
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | 0.05 | 0.15 |
| Manganese (Mn) | — | 1.25 |
| Silicon (Si) | 0.20 | 0.50 |
| Phosphorus (P) | — | 0.020 |
| Sulfur (S) | — | 0.015 |
| Chromium (Cr) | 20.00 | 24.00 |
| Nickel (Ni) | 20.00 | 24.00 |
| Tungsten (W) | 13.00 | 16.00 |
| Lanthanum (La) | 0.02 | 0.12 |
| Boron (B) | — | 0.015 |
| Iron (Fe) | — | 3.00 |
| Cobalt (Co) | — | Balance |
Composition limits for Haynes 188. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Haynes 214
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | — | Balance (75 nominal) |
| Chromium (Cr) | 16 nominal | |
| Aluminium (Al) | 4.5 nominal | |
| Iron (Fe) | 3 nominal | |
| Cobalt (Co) | — | 2 |
| Manganese (Mn) | — | 0.5 |
| Molybdenum (Mo) | — | 0.5 |
| Titanium (Ti) | — | 0.5 |
| Tungsten (W) | — | 0.5 |
| Niobium (Nb) | — | 0.15 |
| Silicon (Si) | — | 0.2 |
| Zirconium (Zr) | — | 0.1 |
| Carbon (C) | 0.04 nominal | |
| Boron (B) | — | 0.01 |
| Yttrium (Y) | 0.01 nominal | |
Composition for Haynes 214. 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.
Haynes 230
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | 0.05 | 0.15 |
| Manganese (Mn) | 0.30 | 1.00 |
| Silicon (Si) | 0.25 | 0.75 |
| Phosphorus (P) | — | 0.030 |
| Sulfur (S) | — | 0.015 |
| Chromium (Cr) | 20.00 | 24.00 |
| Molybdenum (Mo) | 1.00 | 3.00 |
| Tungsten (W) | 13.00 | 15.00 |
| Aluminium (Al) | 0.20 | 0.50 |
| Lanthanum (La) | 0.005 | 0.05 |
| Cobalt (Co) | — | 5.00 |
| Titanium (Ti) | — | 0.10 |
| Boron (B) | — | 0.015 |
| Iron (Fe) | — | 3.00 |
| Copper (Cu) | — | 0.50 |
| Nickel (Ni) | — | Balance |
Composition limits for Haynes 230. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Haynes 242
| 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.
Haynes 282
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | — | Balance |
| Chromium (Cr) | 20 nominal | |
| Cobalt (Co) | 10 nominal | |
| Molybdenum (Mo) | 8.5 nominal | |
| Titanium (Ti) | 2.1 nominal | |
| Aluminium (Al) | 1.5 nominal | |
| Iron (Fe) | — | 1.5 |
| Manganese (Mn) | — | 0.3 |
| Silicon (Si) | — | 0.15 |
| Carbon (C) | 0.06 nominal | |
| Boron (B) | 0.005 nominal | |
Composition for Haynes 282. 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 | Tensile (MPa) | Yield 0.2% (MPa) | Elongation |
|---|---|---|---|
| Annealed | 950 min | 310 min | >20% |
| Age-Hardened | 1310 | 900 | 15-20% |
| @1200°F Aged | 690 | 450 | 28% |
Key Applications Across Industries
- Aerospace: Haynes 242 foil supplier Mumbai for aerospace seal rings and containment rings
- Power: Low thermal expansion nickel alloy foil for dimensionally stable gas turbine components
- Chemical: Haynes 242 foil for hydrofluoric (HF) acid vapor-containing processes
- Defense: High fatigue strength Haynes 242 foil for rocket nozzle components
- MRO: Custom slit UNS N10242 foil coils for specialized aerospace stamping
FAQ & Search Trends
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Domestic Supply Network
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Aurico Alloys LLP delivers Haynes® 242 UNS N10242 foil as your premier stockist India to abroad empowering chemical, aerospace, marine, pharma, and power engineers with unmatched dimensional stability, creep resistance, and HF corrosion immunity that generic alloys can't match. Is your next critical component specified with proven Haynes 242 performance?