Comparison of Incoloy 800H and Inconel 601 alloy materials

Comparison of Incoloy 800H and Inconel 601 alloy materials
Both Incoloy 800H and Inconel 601 are high-strength nickel-based alloys, but Inconel 601 has a higher nickel content and superior oxidation resistance at high temperatures, making it ideal for extreme environments such as aerospace. Incoloy 800H has a higher iron content, offering good high-temperature strength and creep resistance, better corrosion resistance in some acidic environments, and is generally more cost-effective. The choice of alloy depends on the specific mechanical properties and environmental requirements of the application.
What are the machinability properties of Inconel 601 alloy?
A notable characteristic of Inconel 601 alloy is its resistance to high-temperature oxidation. This alloy also exhibits good resistance to water corrosion, high mechanical strength, and ease of forming, machining, and welding.

Inconel 601 Alloy Chemical Composition
| Chemical Composition, % | ||||||||
| Ni | Fe | S | C | Cu | Cr | Mn | Si | Al |
| 58 – 63.0 | Balance | 0.015 max | 0.1 max | 1.0 max | 21 – 25.0 | 1.0 max | 0.5 max | 1 -1.7 |
Chemical Composition of Nickel Alloy 800H / Incoloy 800H (Weight %)
| Element | Content |
|---|---|
| Aluminum (Al) | 0.15 – 0.60 |
| Aluminum + Titanium (Al + Ti) | 0.30 – 1.20 |
| Carbon (C) | ≤ 0.10 (max) |
| Chromium (Cr) | 19.0 – 23.0 |
| Iron (Fe) | ≤ 39.5 (max) |
| Nickel (Ni) | 30.0 – 35.0 |
| Titanium (Ti) | 0.15 – 0.60 |
| Inconel 601 Alloy Mechanical Properties | |||
| Condition | Solution Annealed | ||
| Tensile Strength ( Mpa ) | 686 | ||
| 0.2% Yield Strength ( Mpa ) | 294 | ||
| Elongation ( % ) | 55 | ||
| Hardness ( HB ) | 130 | ||
Incoloy Alloy 800H Tubes Mechanical & Physical Properties
| Element | Incoloy Alloy 800H |
| Density | 7.94 g/cm3 |
| Melting Point | 1385 °C (2525 °F) |
| Tensile Strength | Psi – 75,000 , MPa – 520 |
| Yield Strength (0.2%Offset) | Psi – 30,000 , MPa – 205 |
| Elongation | 30 % |
Comparison: Inconel 601 vs. Incoloy 800H
| Feature | Inconel 601 | Incoloy 800H |
|---|---|---|
| Composition | Higher nickel (>60%), chromium, with aluminium | Higher iron (around 40% nickel), chromium, with aluminium |
| High-Temperature Strength | Excellent | Superior high-temperature creep strength and stress rupture properties |
| Corrosion Resistance | Excellent oxidation resistance | Good resistance to localized corrosion and stress corrosion cracking |
| Weldability | Weldable, but may require post-weld heat treatment | Excellent, retains properties after welding |
| Cost | More expensive | Lower cost due to higher iron content |
| Primary Applications | Aerospace, chemical processing | Chemical, petrochemical, nuclear industries |
Why Choose Gnee Nickel Alloy (Supplier Example)?
✅ Large stock of Incoloy alloy tubes/bars/plates/fittings/coils, fast shipping.
✅ Factory direct sales, highly competitive prices, excellent value for money.
✅ Comprehensive quality assurance: Material Testing Certificate (MTC), chemical composition certificate, and mechanical property certificate.
✅ Value-added services: slitting, cutting, polishing, surface treatment.
✅ Worldwide shipping, secure and reliable packaging, and provision of export-required documents.
Email: ss@gneemetal.com
Gnee Steel is a supplier of Inconel 601 alloy, offering a wide range of products including: seamless pipe (sizes: 4-219 mm; thickness: 0.5-20 mm); welded pipe (sizes: 5.0-1219.2 mm; thickness: 0.5-20 mm); plates (thickness: 0.1 to 100 mm; width: 10-2500 mm); strips; alloy round bars (diameter: 3-800 mm); flat bars (thickness: 2-100 mm; width: 10-500 mm); hexagonal bars (size: 2-100 mm); wire rods; and extruded profiles. We collaborate with steel mills to provide our customers with Inconel 601 alloy products that meet or exceed numerous leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN, and BS standards.
Gnee Steel stocks and sells Inconel 601, pipes, plates, strips, round bars, flat bars, forged billets, hexagonal steel, wire rods, and extruded profiles. Please feel free to contact us at ss@gneesteel.com for a quote.








