Chemical Composition | ||||||||||||||
Identification Symbol | UNS Designation | Grade | Composition, % | |||||||||||
Carbon | Manganese | Phosphorus | Sulfur | Silicon | Nickel | Chromium | Molybdenum | Columbium | Titanium | Other Elements | ||||
F304 | S30400 | 18 chromium,8 nickel 304 | 0.08 | 2 | 0.045 | 0.03 | 1 | 8.0-11.0 | 18.0-20.0 | N 0.10† | ||||
F304H | S30403 |
18 chromium, 8 nickel 304H |
0.04-0.10 | 2 | 0.045 | 0.03 | 1 | 8.0-11.0 | 18.0-20.0 | |||||
F304L | S30409 |
18 chromium, 8 nickel, low carbon 304L |
0.03 | 2 | 0.045 | 0.03 | 1 | 8.0-13.0 | 18.0-20.0 | N 0.10†–0.16 | ||||
F 316 | S31600 |
18 chromium, 8 nickel, modified with molybdenum 316 |
0.08 | 2 | 0.045 | 0.03 | 1 | 10.0-14.0 | 16.0-18.0 | 2.00-3.00 | N 0.10 | |||
F 316L | S31603 |
18 chromium, 8 nickel, modified with molybdenum, low carbon 316L |
0.03 | 2 | 0.045 | 0.03 | 1 | 10.0-15.0 | 16.0-18.0 | 2.00-3.00 | ||||
F321 | S32100 |
18 chromium, 8 nickel modified with titanium 321 |
0.08 | 2 | 0.045 | 0.03 | 1 | 9.0-12.0 | 17.0-19.0 | J | ||||
F321H | S32109 |
18 chromium, 8 nickel, modified with titanium 321H |
0.04–0.10 | 2 | 0.045 | 0.03 | 1 | 9.0-12.0 | 17.0-19.0 | K | ||||
F347H | S34709 |
18 chromium, 8 nickel, modified with columbium 347H |
0.04–0.10 | 2 | 0.045 | 0.03 | 1 | 9.0-13.0 | 17.0-20.0 | M |
Mechanical Properties | |||||
IdentificationSymbol | TensileStrength, min,ksi[MPa] | YieldStrength,min, ksi[MPa] | Elongationin2in. [50mm]or4D,min,% | Reduction of Area, min, % | Brinell Hardness Number, HBW |
F304 | 75 [515] | 30[205] | 30 | 50 | |
F304H | 75 [515] | 30[205] | 30 | 50 | |
F304L | 70 [485] | 25 [170] | 30 | 50 | |
F316 | 75 [515] | 30 [205] | 30 | 50 | |
F316L | 70[485] | 25[170] | 30 | 50 | |
F321 | 75[515] | 30[205] | 30 | 50 | |
F321H | 75[515] | 30[205] | 30 | 50 | |
F347H | 75[515] | 30[205] | 30 | 50 |