Inconel 600
Inconel 600 is a nickel chromium iron solid solution alloy with ≥72% nickel, 14% to 17% chromium, and 6% to 10% iron. It resists high temperature oxidation and corrosion in nitric acid, sulfur bearing gases, and high pressure steam. Its resistance to non oxidizing hydrochloric and sulfuric acid is better than pure nickel but lower than molybdenum bearing alloys. The source lists oxidation resistance above 1100℃ and continuous service below 980℃, together with thermal strength, creep resistance, workability, and weldability for high temperature and mildly corrosive service.
Product details
Chemical composition
| inconel600 | C | Si | Mn | P | S | Ni | Cr | Fe | Cu | Ti | Al | Nb | Co | Ta |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | – | – | – | – | – | 72.0 | 14.0 | 6.0 | – | – | – | – | – | – |
| max | 0.15 | 0.5 | 1.0 | 0.04 | 0.015 | – | 17.0 | 10.0 | 0.5 | 0.5 | 0.35 | 1.0 | 1.0 | 0.05 |
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Grade equivalents
| UNS | W.Nr. | JIS | GB/T | Other Grades |
|---|---|---|---|---|
| N06600 | 2.4816 NiCr15Fe | NCF600 NW6600 | GH600 GH3600 | 0Cr15Ni75Fe 72Ni-15Cr-8Fe |
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Physical properties
| Density g/cm³ | 8.47 |
|---|---|
| Melting range ℃ | 1370~1425 |
| Thermal conductivity (100℃) λ/(W/m•℃) | 13.8 |
| Specific heat J/kg•℃ | 435 |
| Elastic modulus GPa | 204 |
| Shear modulus GPa | 77.2 |
| Electrical resistivity μΩ•m | 1.03 |
| Linear expansion coefficient a/10-6℃-1 | 13.3(20~100℃) |
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Mechanical properties
| Tensile strength Rm N/mm | ≥500 |
|---|---|
| Yield strength RP0.2 N/mm | ≥180 |
| Elongation % | ≥35 |
| Hardness HB | ≤185 |
| *After solution heat treatment | |
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Applications
- Radiant tubes in annealing furnaces
- Turbine combustion-chamber liners
- Heat-transfer tubes and main steam piping in pressurized water reactors (PWR)
- Nitric acid concentration columns and synthetic-fibre polymerization reactors
- Superheater tubes, reheater tubes, and flue gas desulfurization (FGD) units
- Catalytic-reformer furnace tubes and hydroprocessing-reactor internals
- High-temperature sterilizers and piping for corrosive pharmaceutical liquids
Available product forms
- Round Bar
- Wire
- Forgings
- Plate
- Strip
- Seamless Pipe
- Welded Pipe
- Capillary Tube
- Flanges
- Pipe Fittings
- Non-standard Custom Parts
Values follow the Milike materials catalogue and are provided for preliminary review. Confirm the applicable purchase specification, heat treatment condition, and inspection requirements before final material selection.
- Heat and batch traceability
- PMI testing available
- Cut-to-size processing
- Material certificates on request
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