Stainless Steel Alloy 660

Description

Alloy 660 is a precipitation-hardening austenitic stainless steel known for its impressive strength at high temperatures up to 700°C. Also sold under the names, UNS S66286, and A-286 alloy, Alloy 660 gains its strength from a high degree of uniformity. It has an impressive yield strength minimum of 105,000 psi and is commonly used in high-temperature fastening and bolting materials. Other applications for Alloy 660 include:

• Jet engines
• Gas turbines
• Turbocharger components

In order to be considered a member of the Alloy 660 family, an alloy’s chemical composition must include:

• Ni 24-27.0%
• Cr 13.50-16.0%
• Ti 1.90-2.35%
• Mn 2.0% max
• Mo 1-1.5%
• Si 1.0% max
• V 0.10-0.50%
• Al 0.35% max

One thing to note about Alloy 600’s chemical composition is that due to its high nickel content for stainless steel, it is often categorized as a nickel alloy, thus the A-286 label.

We are proud to be a distributor of Alloy 660 in a range of shapes and sizes including coil, sheet, and plate.  The Alloy 600 metals that we supply, meet NAS, UNS, JIS, and ASTM (A453, A638) specifications and standards.