1. Introduce
– Alloy with excellent creep strength, tensile strength and ductility from 649 to 704°C
– Excellent oxidation resistance up to 816°C
– UNS N10242
* UNS
- Abbreviation of Unified Numbering Systems for Metals and Alloys
- Unified unique numbering system for metals and alloys
- A representative number that is compatible with metals and alloys defined in many material-related codes such as ASTM, AISI, ASME, AWS, etc.
* N : Nickel and nickel alloys
* UNS N10242 : 10XXX : Molybdenum(Hastelloy)
* Haynes
– Alloys designed for high temperature strength, thermal fatigue resistance, oxidation resistance, and corrosion resistance
– Alloys composed primarily of Ni, Cr, Co, with elements such as W, Mo, Fe, etc.
2. Property
– High temperature strength, low thermal expansion properties, oxidation resistance, excellent resistance to fluoride environment
| Element | Impact |
|---|---|
| Ni | Provides corrosion resistance |
| Cr | Provides corrosion resistance, oxidation resistance, creep resistance |
| Mo | Highly strengthening element, high temperature stability, high temperature creep characteristics |
[Haynes 242 Chemical Composition (%)]
| Ni | Cr | Fe | C |
|---|---|---|---|
| 57.86 ~ 69.00 | 7.00 ~ 9.00 | Max. 2.00 | Max. 0.03 |
| Al | Cu | Si | Mn |
|---|---|---|---|
| Max. 0.50 | Max. 0.50 | Max. 0.80 | Max. 0.80 |
| Mo | Co | B | |
|---|---|---|---|
| 24.00 ~ 26.00 | Max. 2.50 | Max. 0.01 |
[Haynes 242 Mechanical Properties]
| Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) |
|---|---|---|
| Min. 725 | Min. 310 | Min. 40 |
[Haynes 242 Physical Properties]
| Density (g/cm³) | Melting Range (℃) | Specific Heat (0-100℃), J/kg*℃ |
|---|---|---|
| 9.05 | 1290 ~ 1375 | 386 |
3. Standard & Specification
– Specification : UNS N10242
| Product Form | AMS | ASTM | AWS |
|---|---|---|---|
| Plate, Sheet, Strip | SB434 | B434 | – |
| Rod, Bar | SB573 | B573, B572, B472 | – |
| Welding Rod, Wire | – | – | A5.14(ERNiMo-12) |
| Pipes, Tubes | SB622, SB619, SB626 | B622, B619, B626 | – |
| Forgings | SB564 | B564 | – |
4. Available Form
– Plate, Sheet, Strip
– Rod, Bar
– Welding Rod, Wire
– Pipe, Tube
– Forgings
5. Application & Product
– Aerospace
| Application | Product |
|---|---|
| Aerospace | Seal Rings, Duct Segments, Casings, Fasteners, Rocket Nozzles, Pumps |
(1) Seal ring / (2) Duct segment / (3) Casing / (4) Fasteners
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