1.4980+A
- Tensile Strength
- 650 MPa
- Thermal Conductivity
- 13 W/(m·K)
- Elongation
- 45 %
- Chemical Composition
- C: 0.04%, Ni: 25%, Cr: 14.5%, Ti: 2.1%, Mo: 1.25%, V: 0.3%, Mn: 0.2%, Si: 0.2%, Al: 0.15%, P: 0.015%, B: 0.006%, S: 0.002%
Other Names
- X6NiCrTiMoVB25-15-2
- AISI/SAE: 660
- UNS: S66286
- ASTM: Grade 660 (ASTM A453 / A638)
- Alloy A-286 / A286 / Alloy 286
- INCOLOY® Alloy A-286
- Pyromet® A-286
- Böhler T200
- Valbruna AN5
Material Description
EN 1.4980 / AISI 660 (A286) is an austenitic precipitation-hardening stainless steel alloy designed for high-strength applications at temperatures up to approximately 700 °C. It is commonly supplied in the solution-annealed condition (approximately 650 MPa) or in the precipitation-hardened condition (approximately 1030 MPa). Due to its low thermal conductivity and high nickel content, machining requires sharp, heat-resistant tools with geometries suitable for stainless steels or heat-resistant alloys. The solution-annealed condition offers better machinability, while the precipitation-hardened condition requires more wear-resistant cutting tools and generally lower cutting speeds.