Chrome | Carbon | Nickel | Manganese | Silicon | Phosphorous | Suphur | Molybdenum | |
304 | 18-20 | .08max | 8-10.5 | 2max | 1max | .045max | .03max | .... |
316 | 16-18 | .08max | 10-14 | 2max | 1max | .045max | .03max | 2-3 |
316L | 16-18 | .03max | 10-14 | 2max | 1max | .045max | .03max | 2-3 |
420 | 12-14 | .15min | --- | 1max | 1max | .450max | .03max | ... |
440-C | 16-18 | .95-1.2 | --- | 1max | 1max | .40max | .03max | .75max |
Feature |
General Applications | |
AISI 420 |
Magnetic, Harden-able, fair corrosion resitance | used for special bearings and valves where Balls requiring a combin -ation of hardness and corrosion resistance |
AISI 440C |
Magnetic, higest hardness, good corrosion resistance | used in bearing nozzles and valves where lubrication is poor or absent |
AISI 304 |
austentitic, corrosion resistance, slightly magnetic, however annealing canmakes it non - magnetic | Used in valves and relevant application , food products, aerosols, home sprays, perfumes and medicial equipments. |
AISI 316 |
non - magnetic, good corrosion resistance even when exposed to marine atmosphere and sulfuric acid. |
used in presence of sulphuric, phosphoric and acetic acides. |
AISI 316 |
Characteristics same as 316 but with excellent corrosion resistance, Lower carbon content than regular 316 | expecially used in Jewelry, and Human Implant Applications |