Exera® 5R62 and Exera® 3R65 are austenitic stainless steels alloyed with molybdenum. Exera® 3R65 is a low carbon version of Exera® 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
UNS: S31600/ S31603
EN Number: 1.4401/1.4404
EN Name: X5CrNiMo17-12-2/X2CrNiMo17-12-2
- ASTM F899
- ISO 16061
Exera® 5R62 and Exera® 3R65 are mainly used for medical and dental tools.
Chemical composition (nominal) %
Forms of supply
- 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|
Typical mechanical properties for Exera® 5R62 and Exera® 3R65 at 20°C.
|Grade||Tensile strength||Proof strength||Elongation||Hardness|
Typical physical properties for annealed Exera® 5R62 and Exera® 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|
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.