Gnee Steel is a professional manufacturer of various Hastelloy C276 alloys, nickel-based alloys, Hastelloy alloys, and high-temperature alloy materials. Founded in 2008, the company specializes in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power generation, automotive, nuclear energy, and other fields, and the company can provide customized alloy material solutions according to customer needs. If you need to inquire about alloy material prices or customized solutions, please feel free to contact our sales staff.
What are the differences between Incoloy 800 and SS 316?
What are the differences between Incoloy 800 and SS 316?
Incoloy 800 is a nickel-iron-chromium high-temperature alloy designed for high-temperature strength and oxidation resistance (up to 1100°C), while SS 316 is an austenitic stainless steel with a lower nickel content, suitable for general corrosion-resistant environments up to approximately 870°C. Incoloy 800 performs exceptionally well in carburizing/nitriding environments, while SS 316 is more suitable for moderately corrosive chemical environments and is more cost-effective.
What are the specifications of Incoloy 800?
INCOLOY 800HT alloy has a narrower chemical composition range than the 800H alloy and requires heat treatment at a minimum of 2100°F (1149°C). Its carbon content is 0.06% to 0.10% (compared to 0.05% to 0.10% for 800H alloy), and the total aluminum and titanium content is 0.85% to 1.20% (compared to 0.30% to 1.20% for 800H alloy).
What is Incoloy 800?
Incoloy 800 is a nickel-iron-chromium alloy that offers good strength at high temperatures and excellent resistance to oxidation and carburization. It exhibits superior corrosion resistance in acidic environments, making it an ideal choice for industrial applications requiring both high temperature and corrosion resistance.
What is SS316?
SS316 is an austenitic stainless steel containing molybdenum, which enhances its corrosion resistance. It has excellent formability and weldability and is widely used in various applications, from surgical instruments to chemical processing equipment. Its high nickel and chromium content gives it strong resistance to corrosion in environments rich in acids and chlorides.
Incoloy 800 vs. AISI 316
Chemical composition comparison of Incoloy 800 and stainless steel 316 (%)
|
Grade |
Chemical Composition % |
|||||||||||
|
C |
Mn |
P |
S |
Si |
Cr |
Ni |
Mo |
Ti |
Cu |
Al |
N |
|
|
Incoloy 800 |
0.10 |
1.50 |
0.045 |
0.015 |
1.00 |
19.0-23.0 |
30.0-35.0 |
_ |
_ |
0.75 |
0.15-0.60 |
_ |
|
316 |
0.08 |
2.00 |
0.045 |
0.030 |
0.75 |
16.0-18.0 |
10.0-14.0 |
2.00-3.00 |
_ |
_ |
_ |
0.10 |
Comparison of the mechanical properties of Incoloy 800 and 316 stainless steel
|
Grade |
Tensile Strength MPa |
Yield Strength MPa |
Elongation % |
|
Incoloy 800 |
87(600) |
39.9(275) |
45 |
|
316 |
75(515) |
30(205) |
40 |
Weldability and Machinability
Due to its high nickel content, Incoloy 800 is more difficult to weld, but it can be welded using special welding techniques. On the other hand, SS316 can be easily welded using most conventional welding processes. Both alloys can be easily formed and machined into various shapes and sizes.
Conclusion
Both Incoloy 800 and SS316 are excellent alloys, each with its specific application areas and characteristics. Incoloy 800 is best suited for high-temperature applications requiring excellent oxidation and carburization resistance, while SS316 is ideal for applications requiring high corrosion resistance and good weldability. When choosing between these two alloys, be sure to consider the specific needs of your application. We hope this detailed comparison will help you make an informed decision!
Gnee Steel also supplies custom Incoloy 800 products in various sizes and specifications. Please send us your drawings for a quote!
Gnee Steel is a professional manufacturer of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. We specialize in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power, automotive, and nuclear energy industries, and we can provide customized alloy material solutions according to customer needs. For alloy material price inquiries or to request customized alloy material solutions, please feel free to contact us at ru@gneesteelgroup.com for a quote.