Using our advanced special melting techniques, nonmetallic inclusions and gas components are strictly controlled and significantly reduced to a minimum level.
Table. CLEANSTAR Grades and Features
| Grade |
Melting Process |
Features |
| CLEANSTAR-A |
VIM-VAR |
Ultra-low Mn, ultra-high cleanliness |
| CLEANSTAR-B |
EAF,AOD-VAR |
High cleanliness |
| CLEANSTAR-C |
EAF,AOD |
Higher cleanliness than general 316L |
CLEANSTAR has a distinctive composition, considering purity and corrosion resistance.
All grades comply with the chemical composition standards of SEMI F20.
Table. Chemical Compositions (example)
| Grade |
C |
Mn |
S |
Ni |
Cr |
Mo |
| CLEANSTAR-A |
0.006 |
Ultra-low |
Low |
14.7 |
16.7 |
2.23 |
| CLEANSTAR-B |
0.007 |
Low |
Low |
14.7 |
16.7 |
2.23 |
| CLEANSTAR-C |
0.012 |
Low |
Low |
12.1 |
16.7 |
2.02 |
|
SEMI F20 UHP
|
0.030max
|
1.5max |
0.010max |
12.00-15.00 |
16.00-18.00 |
2.00-3.00 |
※Nickel, chromium, and molybdenum comply with JIS G4303.
For more detailed information on corrosion resistance, purity, and other specifications, please contact us via email or inquire onsite.