In industries where component failure from high creep and corrosion means costly downtime, Haynes 242 Round Bars have become a trusted solution. Engineers and procurement heads across chemical, oil & gas, marine, pharma, and power sectors rely on its exceptional strength and oxidation resistance up to 815°C (1500°F). Where other alloys falter, Haynes 242 excels in harsh environments demanding long-lasting reliability and certified material quality.
Table of Contents:
Haynes 242 (UNS N10242, ASTM B573, DIN 2.466) is an age-hardenable nickel-molybdenum-chromium superalloy characterized by a unique long-range ordering reaction that nearly doubles its strength without sacrificing ductility. This alloy withstands aggressive fluoride salts and hydrofluoric acid vapors, making it ideal for chemical plants and industrial gas turbine engines. Its low thermal expansion and excellent fatigue resistance enable precision components like seal rings, duct segments, and casings to endure severe thermal cycling.
Available from refined stock in diameters 10mm to 350mm, finished with bright, polished, or rough-turned surfaces, Haynes 242 round bars meet ASTM B573. Suppliers provide full traceability, mill test certificates, and custom machining to serve OEMs, hardware suppliers, and maintenance teams requiring quality and fast delivery under global compliance.
Haynes 242, alongside Haynes 242 Round Bars and Inconel 718 Round Bars, offer industries in chemical, energy, marine, and pharma affordable, authentic, and trusted alloys that extend asset lifecycles and reduce operational risks.
High-quality Haynes 242 Round Bars ready for industrial use.
Specification Overview
| Grade | Haynes 242 (UNS N10242, DIN 2.466) |
|---|---|
| Standards | ASTM B573, DIN 2.466, ISO NW10242 |
| Diameter Range | 10mm – 350mm |
| Length | 1000mm – 6000mm (custom sizes available) |
| Finish | Bright, polished, rough-turned, sand-blasted |
| Delivery | Certified MTC, export packaging, traceable batch numbers |
| 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 |
| Rod and bar specification | ASTM B573 |
Identifiers and physical constants for Haynes 242. A dash means no such designation is published for this grade.
Stock & Product Availability
Haynes 242 bars are stocked globally in popular and custom sizes, fulfilling urgent orders for chemical processing, marine refurbishment, energy plants, and OEM manufacturing worldwide.
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 & Physical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength (MPa) | 1290 at 20°C |
| Yield Strength (MPa) | 845 at 20°C (0.2% offset) |
| Elongation (%) | ~33.7 at 20°C |
| Hardness (HB) | 190-240 |
| Max Operating Temp (°C) | up to 815 |
Applications & Benefits
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: hydrofluoric acid vapor process equipment, fluoride salt mixtures, extrusion screws.
- Marine: rocket nozzles, pumps, seal rings, containment components.
- Oil & Gas: high-temp fasteners, duct segments, casings.
- Pharma: sterilization equipment, high temperature resistant components.
- Power: industrial gas turbine parts, thermal barrier components.
- Hardware/OEM: flameholder parts, superalloy rods, precision bars.
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 Across India
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Haynes 242 Round Bars deliver unrivaled strength, oxidation resistance, and thermal stability for chemical, marine, energy, and industrial hardware sectors worldwide. Are your operations optimized with the best heat-resistant superalloys?