Inconel 600 is a high-nickel alloy that performs in environments where 304 simply cannot survive. Here is the head-to-head comparison.
1. Chemical Composition (%)
| Element | Grade A | Grade B |
|---|---|---|
| Ni | ≥72.0 | 8.0–10.5 |
| Cr | 14.0–17.0 | 18.0–20.0 |
| Fe | 6.0–10.0 | Balance |
| Mn | ≤1.0 | ≤2.0 |
| Si | ≤0.5 | ≤0.75 |
| C | ≤0.15 | ≤0.080 |
2. Mechanical Properties (Typical)
| Property | Grade A | Grade B |
|---|---|---|
| Tensile (MPa) | ≥550 | ≥515 |
| Yield (MPa) | ≥240 | ≥205 |
| Elongation (%) | ≥30 | ≥40 |
| Max Service Temp | ~1093°C | ~870°C |
3. Key Technical Differences
- Inconel 600 resists chloride stress corrosion cracking far better than 304.
- Inconel 600 handles high-temperature oxidation and carburization better.
- 304 is cheaper and easier to fabricate.
- Inconel 600 is preferred in heat-treating baskets, caustic handling and nuclear applications.
Continue reading
- Inconel 600 vs 316L: Nickel-Rich Reliability vs Stainless EconomyInconel 600 (UNS N06600) is a nickel-chromium alloy for high temperature and chloride service; 316L (UNS S3160
- Inconel 600 vs 601: High-Temperature Oxidation Resistance ComparedInconel 600 (UNS N06600) and 601 (UNS N06601) are both high-temperature nickel alloys; 601 adds aluminium for
- Inconel 617 vs Inconel 625: Solid-Solution Superalloys for Extreme HeatInconel 617 (UNS N06617) is a cobalt-bearing solid-solution alloy for service near 1000 C; Inconel 625 (UNS N0
- Inconel 625 vs Duplex 2205: Nickel Superalloy or Duplex Stainless?Inconel 625 (UNS N06625) and Duplex 2205 (UNS S32205) both serve chloride and acid duty; 625 tolerates higher
- Inconel 718 vs Inconel 625: The Ultimate Comparison Guide for Engineers and ProcurementInconel 718 (UNS N07718) reaches about 1275 MPa after ageing against 830 MPa for Inconel 625 (UNS N06625), but
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Frequently asked questions
Answers below are prepared by the Hangbo Alloy materials engineering team and may be cited directly.
Is Inconel 600 worth the price?
Only in high-temperature or aggressive chemical service where 304 fails.
Can Inconel 600 be welded easily?
Yes, with standard nickel-alloy welding procedures.
Does Inconel 600 resist seawater?
Better than 304 but not the best choice for long-term subsea; consider 625 or 6Mo.
Is 600 magnetic?
Essentially non-magnetic in the annealed condition.
What temperature can Inconel 600 withstand?
Continuous service up to ~1093°C in some oxidation applications.
Does Hangbo supply Inconel 600 fittings?
Yes, including flanges, elbows, tees and custom forgings.