Inconel 600 (UNS N06600) is a nickel-chromium-iron solid-solution strengthened alloy. It delivers reliable oxidation resistance at high temperatures and strong immunity to chloride stress corrosion cracking. The alloy features favorable fabricability and weldability, widely adopted for heat-treating equipment, chemical processing and nuclear engineering components.
Below we introduce our available Inconel 600 product portfolio, including plates, pipes, bars and fittings to meet your fabrication demands.
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Standard Equivalent Grades of Inconel 600
| Designation System | Grade Number |
|---|---|
| UNS | N06600 |
| Werkstoffnummer (W.Nr.) | 2.4816 |
| ISO | NW6600 |
| GB (Chinese Standard) | NS3102 / GH3600 |
| JIS | NCF600 |
| DIN | NiCr15Fe |
| AFNOR | NC15Fe |
All grades listed above are metallurgically equivalent to Inconel 600 for general engineering use. Confirm mill test compliance with project specifications for critical pressure or high-temperature service.
Inconel 600 vs Similar Nickel Alloys (Common Substitute Materials)
Engineers frequently inquire whether Inconel 601, Inconel 625 or Incoloy 800/800H can serve as alternatives to Inconel 600. Below analyzes material differences and substitution limits for each grade.
1.Can Inconel 601 replace Inconel 600?
- Composition Difference: Inconel 600 (UNS N06600: Ni ≥72%, Cr 14–17%, Fe 6–10%); Inconel 601 (UNS N06601: Ni 58–63%, Cr 21–25%, Fe balance). 601 has higher chromium and lower nickel content.
- Temperature Resistance: Both support long-term high-temperature service; 601 delivers superior high-temperature oxidation resistance above 1000°C.
- Corrosion Performance: 600 performs better in chloride stress corrosion cracking resistance; 601 excels in high-temperature oxidizing atmospheres. Applicable Substitution Scenarios: General high-temperature furnace components, heat treatment fixtures without strict nickel content requirements.
- Non-substitutable Scenarios: Chloride-containing corrosive media, nuclear-grade components, specifications requiring minimum 72% nickel content.
2.Can Inconel 625 replace Inconel 600?
- Composition Difference: Inconel 625 (UNS N06625) adds molybdenum and niobium for solid-solution strengthening, with lower nickel compared to 600.
- Temperature Resistance: Long-term service temperature is comparable, while 625 maintains higher tensile strength at elevated temperatures. Corrosion Performance: 625 offers outstanding resistance to pitting and crevice corrosion; 600 has advantages in pure caustic environments. Applicable Substitution Scenarios: High-pressure heat exchangers, offshore components requiring localized corrosion resistance (cost evaluation required).
- Non-substitutable Scenarios: High-purity caustic service, budget-sensitive conventional high-temperature equipment where 600 meets all technical demands.
3.Can Incoloy 800 / 800H replace Inconel 600?
- Composition Difference: Incoloy 800/800H (UNS N08800 / N08810) is nickel-iron-chromium alloy with roughly 30–35% nickel, far lower nickel than Inconel 600.
- Temperature Resistance: 800H is optimized for creep resistance at 600–900°C; 600 has better oxidation resistance over 950°C.
- Corrosion Performance: 600 provides much stronger resistance to chloride and caustic corrosion; 800 series suits carburizing high-temperature gas environments.
- Applicable Substitution Scenarios: Non-corrosive high-temperature flue pipes, furnace radiant tubes with no chloride or caustic media.
- Non-substitutable Scenarios: Seawater, caustic solution, chloride-rich process environments and nuclear applications.
Note: Direct material substitution without third-party engineering review risks premature component failure. Contact our technical team for formal material comparison and procurement advice.
Chemical composition of Inconel 600
| Standard | Grade | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Chemical composition % | |||||||||||
| Ni+Co | Cr | Fe | Mn | Si | Cu | Al | Ti | C | P | S | |
| UNS | N 06600; Alloy 600 | ||||||||||
| 72 | 14-17 | 6-10 | <1 | <0,5 | <0,5 | <0,15 | |||||
| EN | 2.4816 | ||||||||||
| 72 | 14-17 | 6-10 | <1,0 | <0,5 | <0,5 | <0,3 | <0,3 | 0,05-0,15 | <0,02 | <0,015 | |
physical and mechanical properties OF Inconel 600
Physical Properties
| Property | Value |
|---|---|
| Density | 8.42 g/cm³ |
| Melting Range | 1354–1413 °C |
| Specific Heat Capacity | 444 J/kg·°C |
| Electrical Resistivity (21 °C) | 1.03 μΩ·m |
| Curie Temperature | -124 °C |
Mechanical Properties by Product Form & Processing Condition
| Product Form | Processing Condition | Hardness | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation |
|---|---|---|---|---|---|
| Rod | Cold-drawn and annealed | 65–85 HRB | 550–690 | 170–345 | 35–55% |
| Rod | Hot-finished | 75–95 HRB | 585–830 | 240–620 | 30–50% |
| Plate | Hot-finished | 65–85 HRB | 550–725 | 205–345 | 35–55% |
| Plate | Hot-finished and annealed | 80–95 HRB | 580–760 | 240–450 | 30–50% |
| Tube | Hot-finished | 75–100 HRB | 520–690 | 170–345 | 35–55% |
| Tube | Cold-drawn and annealed | 80–95 HRB | 580–760 | 240–450 | 30–50% |
Note: All mechanical data represents typical room-temperature values. Actual values depend on exact dimension, heat treatment and applicable ASTM standards.
Heat Treatment of Inconel 600
- Annealing – softens the material. Proper treatment takes 15 minutes in about 1010°C.
- Solutioning – dissolves the carbides and increases grain size, which is good for creep resistance and rupture strength. Proper treatment takes 1 to 2 hours at 1090-1150 °C.
Key Characteristics of Inconel 600
High-Temperature Oxidation Resistance
It features high resistance to high-temperature corrosion and oxidation, with stable service up to 1093 °C and reliable protection against hot flue gas erosion.
Superior Fabricability & Weldability
It supports hot/cold forming and welding. Mandatory post-weld heat treatment is not required, and complex shaped components can be manufactured efficiently.
Stable Strength & Plasticity at Medium Temperature
Below 700 °C, it maintains stable thermal strength and plasticity. Annealed material achieves 35–55% elongation and avoids brittle fracture under load.
Broad-Spectrum Corrosion Resistance
With minimum 72% nickel content, it resists caustic corrosion and chloride stress corrosion cracking for chemical and marine corrosive service.
application of Inconel 600
Alloy 600 is a versatile superalloy, which can be used in a variety of applications, involving high-temperature and corrosive conditions. On the other hand, it is also used in cryogenic temperature.
Material 2.4816 is used:
- In aviation: engine and airframe components like exhaust liners, turbine seals and safety wires.
- In metal processing industry: furnance muffles, retors, baskets, trays and other heat treatment equipment.
- In chemical, petrochemical and papermaking industries: heaters, evaporator tubes, stills, fittings and fixtures for handling acids and sulfides.
- In power industry: nuclear reactors components. The alloy designated specifically to this purpose is Inconel 600T.
- In automotive: high temperature sensors, gaskets, parts of spark plugs and airbag systems.
Why Choose Gnee as Your Inconel 600 Supplier?
✅ Full Material Traceability: EN 10204 3.1 certificates with complete heat chemical analysis are provided for every batch.
✅ Adequate In-Stock Supply: Ready inventory of Inconel 600 plates, bars and tubes to shorten your delivery lead time.
✅ Comprehensive Testing Services: PMI, hardness test, tensile test, eddy current testing and other NDT inspections are available on request.
✅ Custom Fabrication: Precision cutting, machining, forming and bending services to support your finished part production.
✅ Direct Factory Pricing: Competitive factory rates for both small samples and bulk orders without intermediate markups.
Packaging and Shipping
Contact us for the latest export price quote for Inconel 600
FAQ:
Are Inconel and Monel the same?
No, Inconel and Monel are not the same. They are distinct families of nickel-based metal alloys with different chemical makeups and uses. Monel relies on a nickel-copper mix, while Inconel uses a nickel-chromium mix.
Are alloy 600 and Inconel 600 the same?
Yes, alloy 600 and Inconel 600 are the exact same material. "Inconel" is a registered trademark brand name owned by Special Metals Corporation, while "alloy 600" is the generic or UNS designation (UNS N06600) used by other manufacturers. They share the identical chemical makeup and mechanical traits.
Is hastelloy similar to Inconel?
Hastelloy and Inconel are very similar because both are high-performance nickel-based superalloys built for harsh conditions. However, Inconel focuses more on extreme heat and structural strength, while Hastelloy focuses on surviving aggressive chemical corrosion.
What is the difference between Inconel 600 and 625?
Inconel 600 and 625 are both high-performance nickel-chromium superalloys, but Inconel 625 adds molybdenum and niobium for significantly higher mechanical strength and superior corrosion resistance in severe environments, whereas Inconel 600 relies on a simpler nickel-iron-chromium mix suited for basic high-heat and oxidation tasks.
Can Inconel 625 be welded?
Yes, Inconel 625 can be welded. It is considered one of the most weldable nickel-based superalloys. You can join it using standard methods like TIG (GTAW) and MIG (GMAW), and it does not usually need complex post-weld heat treatment.
