Datasheet updated

2024-03-14 15:13
(supersedes all previous editions)

Alleima® 5R62 and Alleima® 3R65 are austenitic stainless steels alloyed with molybdenum. Alleima® 3R65 is a low carbon version of Alleima® 5R62.

The grades are characterized by:

  • Good resistance to general corrosion and better resistance to pitting than ASTM 304, because of the alloying with Mo
  • High tensile strength


  • ASTM: 316/316L
  • UNS: S31600/ S31603
  • ISO: 316/316L
  • EN Number: 1.4401/1.4404
  • EN Name: X5CrNiMo17-12-2/X2CrNiMo17-12-2
  • W.Nr.: 1.4401/1.4404
  • JIS: SUS316/SUS316L

Product Standards

  • ASTM F899
  • ISO 16061


Alleima® 5R62 and Alleima® 3R65 are mainly used for medical and dental tools.

Chemical composition (nominal) %

Alleima® 5R62 ≤0.06 ≤0.7 ≤1.8 17 11.0 2.3
Alleima® 3R65 ≤0.03 ≤0.7 ≤1.8 17 11.5 2.3

Forms of supply

Wire form

  • In coils with weights up to 150 kg
  • On various types of spool with wire weights up to 500 kg
  • In straightened lengths up to 4 m

Surface finishes and size range

Surface finishSize range, mm
Coated 0.23 - 8.00
Bright 0.15 - 0.80
Mechanically polished 0.40 - 6.00

Mechanical properties

Typical mechanical properties for Alleima® 5R62 and Alleima® 3R65 at 20°C.

Grade Tensile strength Proof strength Elongation Hardness
Rm Rp0.2
Alleima® 5R62 ≥515 ≥205 ≥40 ≤95 ≤217
Alleima® 3R65 ≥485 ≥170 ≥40 ≤95 ≤217

Physical properties

Typical physical properties for annealed Alleima® 5R62 and Alleima® 3R65 are given below:

Grade Density Elastic Moduls Mean Coefficient of Thermal Expansion Thermal Conductivity Specific Heat Resistivity
g/cm3 103 MPa mm/m/°C W/m °C J/kg °C μΩm
0-100 °C at 100 °C 0-100 °C 20 °C
Alleima® 5R62/3R65 8 193 16 16 500 0.74

Corrosion resistance

Excellent corrosion resistance in a range of atmospheric environments and various corrosive media.

Subject to pitting and crevice corrosion in warm chloride media and to stress corrosion cracking at temperatures above around 60°C.

Considered resistant to potable water with up to approximately 1000 mg/l chlorides, at ambient temperatures, reducing to approximately 500 mg/l, at 60°C.

Disclaimer: Alleima is not providing any products or services that are intended or may be construed to be recommending or otherwise advising on, in any manner, the design, suitability, appropriateness or effectiveness, from a medical/biological/safety perspective, of any medical material, instrument and/or medical device.