instrument and implant grade metal alloys

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Stainless Steel 420F Mod (1.4197) Medical Alloy

420F Mod is a free-machining stainless steel with increased Molybdenum and Nickel content to improve hardness and corrosion resistance. Ideal for the production of complex, precision parts which must have both good wear resistance and corrosion resistance.


Medical instruments
Surgical instruments
Dental instruments

Typical Chemical Composition

C Si Mn P S Cr Mo Ni Fe
Min 0.20 0.15 12.50 1.10 0.75
Max 0.26 1.00 2.00 0.04 0.27 14.00 1.50 1.50 Balance

Typical Mechanical Properties

Condition Tensile (Rm)
Yield (R0.2%)
Hardened 112-134 48-52


DIN X20CrNiMoS13-1


Stainless Steel 420F Mod (1.4197) Medical Alloy is available in wire and round bar from 0.35mm diameter up to 25.00mm diameter

Disclaimer : Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.

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Metal Weight Calculator

Metal Alloy



NOTE: Weights calculated are theoretical. Manufacturing tolerances should be allowed for and results adjusted accordingly.