Q: What is the corrosion (oxidation) resistance of 1.4980 (A-286) fasteners compared to 1.4404 (A4 / 316L ) fasteners?
A: A286 / 1.4980 bolts provide excellent oxidation resistance up to 1500°F (815°C). This makes 1.4980 bolts ideal for high temperature exhaust streams. In comparison, 316L / 1.4404 bolts can typically be applied up to approximately 550°C – almost 300°C less than A286.
Known for its high temperature strength, the main advantage of A286 / 1.4980 bolts compared to 316L/1.440 their mechanical properties in heat. A86 is able to maintain higher strength at elevated temperatures. In general 1.4980 bolts offer good mechanical behavior up to 700 deg. C (1500 deg F)
