1. Introduce
– High chromium content version of Inconel 600
– UNS N06690
* Inconel
- Features
– Resists oxidation and submersion in oxidizing and sulfurizing atmospheres above 900℃
– Non-corrosive to organic and salt solutions
– Excellent mechanical properties such as tensile and yield strength up to about 600℃ - Applications
– High temperature heat resistant equipment(Heat treatment furnace, boiler, jet engine parts, electric heater parts) - Types
– Incoenl 600/601, Inconel 625, Inconel 690, Inconel 718, Inconel 718+, Inconel X-750, etc.
* UNS
- Abbreviation for 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 N06690 : 06XXX : Chromium(Hastelloy, Nichrome, Inconel and etonite, some with additional element
2. Property
– Strength, Corrosion resistance, High temperature oxidation resistance, Stress corrosion resistance, Good machinability
| Element | Impact |
|---|---|
| Cr | Provides high temperature corrosion resistance, intergranular corrosion and intergranular stress corrosion resistance |
[Inconel 690 Chemical Composition (%)]
| Ni | Cr | Fe | C |
|---|---|---|---|
| 56.30 ~ 66.00 | 27.00 ~ 31.00 | 7.00 ~ 11.00 | Max. 0.05 |
| Cu | Si | Mn | S |
|---|---|---|---|
| Max. 0.50 | Max. 0.50 | Max. 0.50 | Max. 0.15 |
[Inconel 690 Mechanical Properties]
| Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) |
|---|---|---|
| 700 | 379 | 46 |
[Inconel 690 Physical Properties]
| Density (g/㎤) | Melting Range (℃) | Specific Heat (0-100℃), J/kg*℃ |
|---|---|---|
| 8.19 | 1343 ~ 1377 | 450 |
3. Standard & Specification
– Specification : UNS N06690
| Product Form | ASTM | ASME | MIL |
|---|---|---|---|
| Bar, Rod, Wire, Forgings | B166, B564 | SB166, SB564 | DTL-24801 |
| Plate, Sheet, Strip | B168 | SB168, N-525 | DTL-24802 |
| Pipe, Tube | B163, B167, B829 | SB163, SB829, N-20, N-525 | DTL-24803 |
4. Available Form
– Bar, Rod, Wire, Forgings
– Plate, Sheet, Strip
– Pipe, Tube
5. Application & Product
– Chemical, Petrochemical, Nuclear Power
| Application | Product |
|---|---|
| Chemical | Steam generator tubes, Pipes, Baffles, Heat exchangers, Steam generators |
| Petrochemical | Furnaces, Reheaters, Incinerators, Burners, Ducts, Coal gasifiers for petrochemical processing |
| Nuclear Power | Steam generators, Reactor core components |
(1) Steam generator / (2) Furnace / (3) Incinerator
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