1RK91 is a precipitation hardening stainless steel specifically designed for applications requiring high
strength combined with good ductility in the final product and high formability in the as-delivered condition.
The strength is increased after ageing of the final product.
Advantages of 1RK91 stainless steel
Excellent mechanical properties; very high tensile strength and hardness levels can be achieved
Corrosion resistance comparable to ASTM 304L or ASTM 316L depending on condition
Retained mechanical properties at temperatures up to at least 400°C (750°F)
Very good relaxation properties
Good weldability
Equal grade
UNS S46910
Standards
ASTM A564-2004
Application
1RK91 could be used for surgical suture needles, blood lancets and dental tools (taps, reamers, screw drivers).
Stock sizes available at A-one Alloy
Diameter:2-30mm
