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Product Overview
Introduction To Haynes Superalloys 242 / UNS N10242
MOKSH TUBES & FITTINGS LLP is a manufacturer, supplier, exporter, importer, and stockist of a wide range of Haynes 242 (UNS N10242) products including Pipes & Tubes, Pipe Fittings, Flanges, Fasteners, Sheets & Plates, Coils, Wires, Round Bars, Flat Bars, Angles, Channels, Welding Rods, Wire Mesh, and other custom and hard-to-find Haynes 242 products.
Haynes Superalloys 242 is an age-hardenable nickel-molybdenum-chromium alloy known for its exceptional high-temperature strength, low thermal expansion, outstanding oxidation resistance, and good fatigue performance. It remains dimensionally stable and structurally robust up to approximately 705 °C (1300 °F).
Chemical Composition
| Element | Composition (%) |
|---|---|
| Nickel | Balance |
| Molybdenum | 24–26 |
| Chromium | 7–9 |
| Iron | ≤ 2 |
| Cobalt | ≤ 2.5 |
| Manganese | ≤ 0.8 |
| Silicon | ≤ 0.8 |
| Aluminum | ≤ 0.5 |
| Carbon | ≤ 0.03 |
| Boron | ≤ 0.006 |
| Copper | ≤ 0.5 |
Technical Composition
Physical Properties
| Property | Imperial | Metric |
|---|---|---|
| Density | 0.321 lb/in³ | 8.88 g/cm³ |
| Melting Point | 2410–2460 °F | 1320–1350 °C |
| Specific Heat | 0.10 Btu/lb·°F | 418 J/kg·°C |
| Curie Temperature | — | — |
| Magnetic Permeability at 200 oersteds (15.9 kA/m) | 1.02 | — |
Mechanical Properties
| Property | Tubing (Annealed) | Tubing (Cold Drawn) | Bar (Annealed + Aged) | Plate (Annealed + Aged) | Sheet (Annealed + Aged) |
|---|---|---|---|---|---|
| Tensile Strength (ksi) | 105 | 144 | 187 | 187 | 150–218 |
| Tensile Strength (MPa) | 724 | 993 | 1290 | 1290 | 1034–1500 |
| Yield Strength (0.2%) (ksi) | — | 104 | 122 | 122 | 140 |
| Yield Strength (MPa) | — | 717 | 845 | 845 | 965 |
| Elongation (%) | — | 15–20 | 33.7 | 33.7 | 8 |
Products in Haynes Superalloys 242
Haynes Superalloys 242 is a high-performance alloy, conforming to aerospace and industrial standards, and supplied in a variety of forms:
Haynes Superalloys 242 products are produced to the following global standards:
Uses and Advantages
Exceptional high-temperature strength up to 705 °C (1300 °F)
Outstanding oxidation resistance up to ~815 °C (1500 °F)
High fatigue and creep resistance
Good formability and weldability, including in age‑hardened condition
Applications of Haynes Superalloys 242
Haynes Superalloys 242 is ideal for critical applications requiring simultaneous dimensional stability, mechanical strength, and corrosion resistance:
Aerospace and Gas Turbines
Seal/containment rings, ducting, fasteners, casings, fuel nozzles
Chemical & Petrochemical Processing
HF/fluorine-resistant components, extrusion screws, reactors
Industrial Furnaces and Heat Treating
Heat exchangers, press tooling, furnace parts
Nuclear & Specialty Energy Environments
Salt-furnace hardware, controlled expansion components
Power Generation
Boiler superheaters, gas turbine components
WHY CHOOSE US?
FAQ's
What is Haynes 242 and why is it important in high-temperature applications?
Haynes 242 (UNS N10242) is an age-hardenable nickel-molybdenum-chromium alloy that combines excellent high-temperature strength with very low thermal expansion. It is widely used in aerospace, chemical, and power generation industries because it provides outstanding dimensional stability, fatigue resistance, and oxidation resistance up to 815 °C (1500 °F), making it ideal for critical operations under extreme conditions.
What are the key properties of Haynes 242 alloy?
Haynes 242 offers a unique combination of properties including exceptional strength at elevated temperatures, the lowest thermal expansion among comparable superalloys, high resistance to oxidation, and excellent fatigue and creep performance. It has a tensile strength ranging from 105 to 218 ksi depending on form, with yield strength up to 140 ksi, and maintains structural stability up to 705 °C (1300 °F). Its weldability and formability, even in the age-hardened condition, make it a versatile alloy for demanding applications.
Which industries and applications commonly use Haynes 242?
Haynes 242 is widely used in aerospace and gas turbines for seal rings, ducting, fuel nozzles, and containment casings. In chemical and petrochemical industries, it is used for HF and fluorine resistant components, reactors, and extrusion screws. It also finds applications in industrial furnaces for press tooling, heat exchangers, and furnace parts, in nuclear and specialty energy sectors for controlled expansion components, and in power generation for boiler superheaters and gas turbine hardware.
What types of Haynes 242 products are supplied by MOKSH TUBES & FITTINGS LLP?
MOKSH TUBES & FITTINGS LLP supplies a wide range of Haynes 242 products including seamless and welded pipes, tubes, sheets, plates, coils, bars, flanges, pipe fittings, fasteners, welding rods, wire mesh, and custom-fabricated components. All products conform to ASTM, ASME, NACE, and international standards, ensuring that industries receive high-quality materials designed for long service life and superior performance.
Why choose MOKSH TUBES & FITTINGS LLP for Haynes 242 materials?
MOKSH TUBES & FITTINGS LLP is a trusted manufacturer and global supplier of Haynes 242, offering deep expertise in exotic alloys, a strong international supply chain, and ISO 9001 certified quality assurance. The company provides customized machining, age treatment, and fabrication services while ensuring timely delivery and full material traceability. With technical support from selection to fabrication, MOKSH TUBES & FITTINGS LLP is a reliable partner for industries operating in extreme environments.
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