instrument and implant grade metal alloys

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Stainless Steel 316LVM (1.4441) Implant Grade Medical Alloy

1.4441 implant grade stainless steel is an ESR remelt grade, similar to ASTM F138 316LVM and is the main go-to stainless steel for medical applications. It is delta ferrite free and can be cold worked to high strengths (up to 1400MPa) without forming ferromagnetc alpha ferrite. It is well suited to a wide range of medical applications especially in the field of bone surgery. Machinability is fair, and best carried out in the cold worked condition.


Joint replacement
General bone surgery
Internal fixation devices
High strength guide wires
Kirschner wires

Typical Chemical Composition

C Si Mn P S Cr Mo Ni V Nb N Cu Fe
Min 17.00 2.50 13.00
Max 0.03 1.00 2.00 0.025 0.010 19.00 3.20 15.50 0.10 0.50 Balance

Typical Mechanical Properties

Condition Tensile (Rm)
Yield (R0.2%)
A4d (%)
Annealed 91 45 42
Cold Worked - 20% 123 110 8
Cold Worked - 50% 176 161 2.2


ISO 5832-1
UNS S31673
EN X2CrNiMo18-15-3
DIN X2CrNiMo18-15-3
AFNOR X2CrNiMo18-15-3


Stainless Steel 316LVM (1.4441) Medical Alloy is available in wire and round bar from 0.200mm diameter up to 80.0mm 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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NOTE: Weights calculated are theoretical. Manufacturing tolerances should be allowed for and results adjusted accordingly.