Chemical Composition Of Martensite Stainless Steel
AISI Composition (%)
C Cr Others
403 0,15 11,5 - 13,0 0,5 Si
410 0,15 11,5 - 13,5
414 0,15 11,5 - 13,5 1,25 - 2,5 Ni
416 0,15 12,0 - 14,0 1,25 Mn, 0,15 S (min.), 0,060 P, 0,60 Mo (opt.)
416 Se 0,15 12,0 - 14,0 1,25 Mn, 0,060 P, 0,15 Se (min.)
420 0,15 (min.) 12,0 - 14,0
431 0,2 15,0 - 17,0 1,25 - 2,5 Ni
440 A 0,60 - 0,75 16,0 - 18,0 0,75 Mo
440 B 0,75 - 0,95 16,0 - 18,0 0,75 Mo
440 C 0,95 - 1,20 16,0 - 18,0 0,75 Mo

Chemical Composition Of Ferritic Stainless Steel
Composition (%)
C Cr M Others
406 0,08 11,5 - 14,5 1,0 0,1 - 0,3 Al
430 0,12 14,0 - 18,0 1,0 0,060 P, 0,15 S (min.), 0,60 Mo (opt.)
430F 0,12 14,0 - 18,0 1,25 0,060 P, 0,060 S, 0,15 Se (min.)
430FSe 0,12 14,0 - 18,0 1,25
442 0,2 18,0 - 23,0 1,0
446 0,2 23,0 - 27,0 1,5 0,25 N
Odd numbers indicate maximum %. Other alloys of the stated amounts contain maximum values; the remaining part is iron.

Mechanical Characteristics of Ferritic Stainless Steel
AISI Room Temperature, Operating Temperature Fo
Tensile force (1000 psi) Flowing force 0,2% (1000 psi) Extension 2 in. (%) Hardness (Rockwell B') Continuous Intermittent
406 70 40 30 81 1400 1450
430 75 45 30 83 1550 1660
430F, 430FSe 80 55 25 87 1500 1600
442 80 45 20 90 1800 1900
446 80 50 25 86 1950 2060

Chemical Composition Of Austenitic Stainless Steel
Composition (%)
C Cr Ni Others (%)
201 0,15 16,0 - 18,0 3,5 - 5,5 2.5 N, 5.5 - 7.5 Mn, 0.060 P
202 0,15 17,0 - 19,0 4,0 - 6,0 2.5 N, 7.5 -10.0 Mn, 0.060 P
301 0,15 16,0 - 18,0 6,0 - 8,0
302 0,15 17,0 - 19,0 8,0 - 10,0
302 B 0,15 17,0 - 19,0 8,0 - 10,0 2.0 - 3.0 Si
303 0,15 17,0 - 19,0 8,0 - 10,0 0.20 P, 0.15 S (min) 0.60 Mo (opt)
303 Se 0,15 17,0 - 19,0 8,0 - 10,0 0.20 P, 0.06 S, 0.15 Se (min)
304 0,08 18,0 - 20,0 8,0 - 12,0
304 L 0,03 18,0 - 20,0 8,0 - 12,0
305 0,12 17,0 - 19,0 10,0 - 13,0
308 0,08 19,0 - 21,0 10,0 - 12,0
309 0,02 22,0 - 24,0 12,0 - 15,0
309 S 0,08 22,0 - 24,0 12,0 - 15,0
310 0,25 24,0 - 26,0 19,0 - 22,0 1.5 Si
310 S 0,08 24,0 - 26,0 19,0 - 22,0 1.5 Si
314 0,25 23,0 - 26,0 19,0 - 22,0 1.5 - 3.0 Si
316 0,08 16,0 - 18,0 10,0 - 14,0 2.0 - 3.0 Mo
316 L 0,03 16,0 - 18,0 10,0 - 14,0 2.0 - 3.0 Mo
317 0,08 18,0 - 20,0 11,0 - 15,0 3.0 - 4.0 Mo
321 0,08 17,0 - 19,0 9,0 - 12,0 Ti (5 x %C min)
347 0,08 17,0 - 19,0 9,0 - 13,0 Cb + Ta (10 x %C min)
348 0,08 17,0 - 19,0 9,0 - 13,0 Cb + Ta (10 x %Cmin 0.10 Ta max.), 0.20 Co
Odd numbers are the highest amounts, unless otherwise stated. Other elements of the stated alloys contain maximum amounts; the remaining percentage is iron.

Mechanical Characteristics of Austenitic Stainless Steel
Room Temperature, Operating Temperature Fo
Tensile force (1000 psi) Flowing force 0,2% (1000 psi) Extension 2 in. (%) Hardness (Rockwell B') Continuous Intermittent
201 115 55 55 90 1550 1450
202 105 55 55 90 1550 1450
301 110 40 60 85 1650 1500
302 90 40 50 85 1650 1500
302 B 95 40 55 85 1750 1600
304 84 42 55 80 1650 1550
304 L 81 39 55 79 1650 1550
305 85 38 50 80 1650
308 85 35 50 80 1700 1550
309 90 45 45 85 1950 1850
310 95 45 45 85 2050 1900
314 100 50 40 85
316 84 42 50 79 1650 1550
316 L 81 42 50 79 1650 1550
317 90 40 45 85 1700 1600
321 90 35 45 80 1650 1550
347 95 40 45 85 1650 1550