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
Standards
- 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
Applications
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 finish | Size 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 | ||||
| MPa | MPa | % | HRB | HB | |
| 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.