Other alloys · Сплав 660 /Alloy 660 / X6CrNiTiMoVB25-15-2 / 1.4980

Alloy 660 (1.4980): Engineering Analysis of Properties and Applications

Engineering Specification of Alloy 660

Alloy 660, also known by the European designation 1.4980, is an austenitic precipitation-hardening heat-resistant steel. This material is designed to operate under conditions of intense thermal and mechanical stresses. EV Group China technologists classify this alloy as critically important for precision equipment due to its unique combination of high creep resistance at elevated temperatures, excellent corrosion resistance, and consistently low magnetic permeability. Strengthening is achieved by the precipitation of intermetallic phases based on titanium and aluminum in an austenitic matrix.

Standard Chemical Composition of Alloy 660 (1.4980) in %

Mechanical Properties of Material 1.4980 (X6CrNiTiMoVB25-15-2)

Key Applications and Operating Modes for Alloy 660

Structural material 1.4980 demonstrates exceptional structural stability and maintains high strength properties in an operating temperature range up to +700°C. Engineering calculations by EV Group China confirm the effectiveness of its application in cryogenic environments, where the alloy maintains the necessary impact toughness and ductility, preventing brittle fracture. This makes it indispensable for components operating across a wide range of temperatures.

Steel 1.4980 is a primary choice for manufacturing critical components and fasteners operating under high pressure and temperature. Such products include highly stressed bolts and studs for nuclear reactors, gas turbine discs and blades, as well as components for combustion chambers and afterburner chambers of aircraft engines, where maximum reliability and durability are required.

Equivalent Standards and Analogues of Material 1.4980