Our 17-4 H900 stainless steel round bar is aged at 900 degrees Fahrenheit to achieve the highest possible strength and hardness for this alloy. These bars are used for high-stress components such as aircraft fasteners, drive shafts, and high-pressure valves. The H900 temper offers maximum mechanical properties, making it essential for the aerospace and defense industries. It maintains excellent corrosion resistance while providing a strength-to-weight ratio that rivals many specialized steels. Order your 17-4 H900 round bars from Onlinemetals.com for parts that require extreme durability and high yield strength.