EKK
CODE |
Equiv.
Material |
Features |
Heat
Resistance |
Strength |
Corrosion
Resistance |
| NK 10 |
SUS304 |
Austenite stainless steel. Common bellows material |
B |
B |
B |
| NK 03 |
SUS316L |
Austenite stainless steel.Low carbon version of SUS316 which has excellent resistance to cryogenic and corrosive application |
B |
B |
B+ |
| NK 04 |
AM350 |
Cr-Ni-Mo precipitation hardening semi-austenite stainless steel.Best choice for high pressure,long life requirement or high spring rate requirement. Magnetic. |
C |
A+ |
B |
| NK 32 |
Inconel625 |
Best for high and extremely low temperature.Acid proof material having good corrosion resistance and strength.Used for high pressure bellows.Non magnetic. |
A |
A |
A |
| NK 35 |
Has-C22 |
For special application such as acid resistance and high pressure resistance. |
A |
A |
A |
