The difference between 314 stainless steel and Inconel 600 alloy
The difference between 314 stainless steel and Inconel 600 alloy
The main difference lies in their properties: Inconel 600 is a more expensive nickel-chromium alloy with superior high-temperature strength and corrosion resistance; while 314 stainless steel is a lower-cost silicon-rich stainless steel that is easier to process, but has poorer overall performance under extreme high-temperature and corrosive conditions. Inconel 600 is better suited for harsh environments such as aerospace and chemical industries, while 314 stainless steel is a more economical choice for applications with lower high-temperature requirements, such as certain types of braided wire assemblies.
What are the standard pipe materials for Inconel 600?
These pipe materials conform to ASTM B167, B829, and B517 standards. Sizes vary depending on the ASTM, ASME, and API standards. Seamless Inconel 600 pipes range in diameter from 4mm to 219mm, while welded and arc-welded pipes range in diameter from 5mm to 1219.2mm, with wall thicknesses ranging from 0.5mm to 20mm.
What Is 314 Stainless Steel?
314 stainless steel belongs to austenitic stainless steel and is a low-cost heat-resistant alloy with properties similar to 310 stainless steel. Its chemical composition is as follows:
Carbon (0.25%)
Chromium (23-26%)
Nickel (19-22%)
Manganese (2%)
Silicon (1.5-3%)
Phosphorus (0.045%)
The addition of silicon gives 314 stainless steel superior oxidation resistance and heat resistance compared to most chromium-nickel stainless steel alloys.
What Is Inconel 600?
Inconel 600 is a nickel-chromium alloy widely used due to its excellent corrosion resistance and heat resistance. Its chemical composition is as follows:
Nickel (72%)
Chromium (14-17%)
Iron (6-10%)
Manganese (1%)
Silicon (0.5%)
What are the advantages of 314 stainless steel?
314 stainless steel is widely used primarily because it maintains excellent properties even at extremely high temperatures. In fact, its heat resistance is superior to most other stainless steels, withstanding temperatures up to 2102°F (1150°C).
It is also known for its excellent oxidation resistance. Even at extremely high temperatures, it effectively prevents the formation of oxide scale.
It is worth noting that the high heat resistance of 314 stainless steel does not affect its excellent weldability.
Finally, 314 stainless steel has a very high density, especially compared to other similar alloys. This allows it to provide excellent strength.
What are the advantages of Inconel 600?
Like 314 stainless steel, Inconel 600 is considered a heat-resistant alloy. Its chemical composition allows it to maintain good strength and toughness even at extreme high temperatures.
In addition to its excellent heat resistance, Inconel 600's chemical composition also makes it resistant to corrosion, including alkaline solutions, organic compounds, inorganic compounds, and chloride stress corrosion.
Furthermore, its high chromium content gives Inconel 600 excellent oxidation resistance.
In terms of mechanical properties, Inconel 600 has high tensile strength and is not easily embrittled. This characteristic is maintained in both high and low temperature environments.
| Feature | 314 Stainless Steel | Inconel 600 Alloy |
|---|---|---|
| Composition | High chromium (≥25%) and silicon (≥3%) content, with iron as the base | High nickel (≥72% min) and chromium (14–17%) |
| Cost | Lower | Higher |
| High-Temperature Performance | Good heat resistance, but lower strength at very high temperatures | Excellent high-temperature strength and oxidation resistance |
| Corrosion Resistance | Good resistance to scaling, but limited in highly corrosive environments | Superior resistance to high-temperature oxidation, general corrosion, and acidic/seawater environments |
| Mechanical Properties | Prone to work hardening, good weldability | Higher strength and creep resistance |
| Machinability | More easily machined | More difficult to machine |
| Typical Applications | Moderate to high-temperature applications (furnaces, oven parts, woven wire components) | Extreme applications (aerospace, gas turbines, chemical processing plants) |
Why Choose Gnee as Your Nickel-Based Alloy Supplier
✅ Over 18 years of export experience, products sold to more than 80 countries
✅ Certified by ISO, SGS, and BV
✅ Global inventory of Inconel, Hastelloy, Incoloy, and Monel alloy tubing, plates, and bars
✅ Custom processing services available – including cutting, polishing, CNC machining, and packaging
✅ Fast delivery within 7-15 days, supported by global logistics partners
📦 Packaging and Shipping
All stainless steel products are packaged using the following methods:
Wooden pallets or crates
Moisture-proof packaging
Labels with furnace number, standard, and size labels
Shipped worldwide by sea, air, or express
Gnee Steel is a supplier of GH4169 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 GH4169 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 GH4169, 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.
