1. Introduce
– Precipitation hardening Ni-Cu alloy
– Improved strength by cold working prior to precipitation hardening
– Alloy steel with improved corrosion resistance, strength and hardness of Monel 400
– Low temperature properties down to -134°C
– UNS N05500
* Monel : Ni-Cu alloy, stronger than ordinary steel and used as structural materials requiring corrosion resistance
- R Monel : Excellent machinability
- K Monel : Excellent precipitation hardenability due to the addition of Al and Ti
* 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 N05500 : 05XXX : Copper(precipitation-hardenable alloys)
2. Property
– Excellent strength, hardness, corrosion resistance, tensile strength, high strength corrosion fatigue and erosion resistance
| Element | Impact |
|---|---|
| Ni | Provides excellent strength and corrosion resistance |
| Cu | Provides corrosion resistance |
| Ti, Al | Precipitation strengthening elements |
[Monel K-500 Chemical Composition (%)]
| Ni | Fe | C | Al | Ti |
|---|---|---|---|---|
| 58.74 ~ 70.35 | Max. 2.00 | Max. 0.25 | 2.30 ~ 3.15 | 0.35 ~ 0.85 |
| Cu | Si | Mn | S | |
|---|---|---|---|---|
| 27.00 ~ 33.00 | Max. 0.50 | Max. 1.50 | Max. 0.01 |
[Monel K-500 Mechanical Properties]
| Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) |
|---|---|---|
| Min. 860 | Min. 790 | Min. 25 |
[Monel K-500 Physical Properties]
| Density (g/㎤) | Melting Range (℃) | Specific Heat (0-100℃), J/kg*℃ |
|---|---|---|
| 8.44 | 1315 ~ 1350 | 418 |
3. Standard & Specification
– UNS N05500
| Product Form | ASTM | DIN | SAE | BS |
|---|---|---|---|---|
| Bar, Rod | B865 | 17752 | AMS 4676 | 3076NA18 |
| Wire, Coil | – | 17753 | – | 3075NA18 |
| Forgings | – | 17754 | – | – |
| Pipe, Tube | – | 17751 | – | 3074NA18 |
4. Available Form
– Bar, Rod
– Wire, Coil
– Forgings
– Pipe, Tube
5. Application & Product
– Marine, Chemical
| Application | Product |
|---|---|
| Marine | Fasteners, Springs |
| Chemical | Pump, Valve Parts |
(1) Fasteners / (2) Springs / (3) Pump / (4) Valve Parts
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