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Chemical Composition

Standard 300 Series Austenitic Grades


Designation Chemical composition % by mass max unless stated
UNS No SAE No AISI No / Common Name C Si Mn P S Cr Mo Ni Others
S30100 30301 301 0.15 1.00 2.00 0.045 0.030 16.0/18.0 - 6.00/8.00 N 0.10
S30103 - 301L 0.03 1.00 2.00 0.045 0.030 16.0/18.0 - 6.00/8.00 N 0.20
S30153 - 301LN 0.03 1.00 2.00 0.045 0.030 16.0/18.0 - 6.00/8.00 N 0.07/0.20
S30200 30302 302 0.15 0.75 2.00 0.045 0.030 17.0/19.0 - 8.00/10.0 -
S30215 30302B 302B 0.15 2.00/3.00 2.00 0.045 0.030 17.0/19.0 - 8.00/10.0 -
S30300 30303 303 0.15 1.00 2.00 0.20 0.15 min 17.0/19.0 0.60 8.00/10.0 Zr 0.60
S30310 - XM-5 (303Plus x) 0.15 1.00 2.50/4.50 0.20 0.25 min 17.00/19.00 - 7.00/9.00 -
S30323 30303Se 303Se 0.15 1.00 2.00 0.20 0.060 17.0/19.0 - 8.00/10.0 Se 0.15 min
S30330 - 303Cu 0.15 1.00 2.00 0.15 0.10 min 17.00/19.00 - 6.00/10.00 Cu 2.5/4.00; Se 0.10
S30400 30304 304 0.08 0.75 2.00 0.045 0.030 18.0/20.0 - 8.00/10.5 -
S30403 30304L 304L 0.03 0.75 2.00 0.045 0.030 18.0/20.0 - 8.00/12.0 -
S30430 - 302HQ 0.03 1.00 2.00 0.045 0.030 17.0/19.0 - 8.0/10.0 Cu 3.0/4.0
S30452 - XM-21 (304HN) 0.08 1.00 2.00 0.045 0.030 18.0/20.0 - 8.00/10.00 N 0.16/0.30
S30453 - 304LN 0.030 0.75 2.00 0.045 0.030 18.0/20.0 - 8.00/12.0 N 0.10/0.16
S30454 - - 0.03 1.00 2.00 0.045 0.030 18.0/20.0 - 8.0/11.0 N 0.16/0.30
S30500 30305 305 0.12 1.00 2.00 0.045 0.030 17.0/19.0 - 10.5/13.0 -
S30800 30308 308 0.08 1.00 2.00 0.045 0.030 19.0/21.0 - 10.0/12.0 -
S31600 30316 316 0.08 1.00 2.00 0.045 0.030 16.0/18.0 2.00/3.00 10.0/14.0 -
S31603 30316L 316L 0.03 1.00 2.00 0.045 0.030 16.0/18.0 2.00/3.00 10.0/14.0 -
S31635 - 316Ti 0.08 0.75 2.00 0.045 0.030 16.0/18.0 2.00/3.00 10.0/14.0 Ti 5x (C+N) / 0.70
S31640 - 316Cb 0.08 0.75 2.00 0.045 0.030 16.0/18.0 2.00/3.00 10.0/14.0 Nb 10x C / 1.10
S31653 - 316LN 0.03 0.75 2.00 0.045 0.030 16.0/18.0 2.00/3.00 10.0/14.0 N 0.10/0.16
S31700 30317 317 0.08 1.00 2.00 0.045 0.030 18.0/20.0 3.00/4.00 11.0/15.0 -
S31703 - 317L 0.030 0.75 2.00 0.045 0.030 18.0/20.0 3.00/4.00 11.0/15.0 N 0.10
S31725 - 317LM 0.030 0.75 2.00 0.045 0.030 18.0/20.0 4.0/5.0 13.5/17.5 N 0.20
S31726 - 317LMN 0.030 0.75 2.00 0.045 0.030 17.0/20.0 4.0/5.0 13.5/17.5 N 0.10/0.20
S31753 - 317LN 0.030 0.75 2.00 0.045 0.030 18.0/20.0 3.0/4.0 11.0/15.0 N 0.10/0.20
S32100 30321 321 0.08 1.00 2.00 0.045 0.030 17.0/19.0 - 9.00/12.0 5 Ti 5 x C min
S34700 30347 347 0.08 1.00 2.00 0.045 0.030 17.0/19.0 - 9.00/13.0 Nb+Ta 10 x C min
S34720 - 347F 0.08 1.00 2.00 0.040 0.18/0.35 17.00/19.00 0.75 9.00/12.00 Nb 10xC / 1.10; Cu 0.75; Ta 0.05
S34723 - 347FSe 0.08 1.00 2.00 0.11/0.17 0.030 17.00/19.00 0.75 9.00/12.00 Nb 10xC / 1.10; Cu 0.75; Se 0.15/0.35; Ta 0.05
S34800 30348 348 0.08 0.75 2.00 0.045 0.030 17.0/19.0 - 9.00/13.0 Nb+Ta 10 x C / 1.00; Ta:0.10 max; Co 0.20
S38400 30384 384 0.08 1.00 2.00 0.045 0.030 15.0/17.0 - 17.0/19.0 -

 

Standard 200 Series Austenitic Grades


Designation Chemical composition % by mass max unless stated
UNS No SAE No AISI No / Common Name C Si Mn P S Cr Mo Ni Others
S20100 30201 201 0.15 1.00 5.50/7.50 0.060 0.030 16.0/18.0 - 3.50/5.50 N 0.25
S20103 - - 0.03 0.75 5.5/7.5 0.045 0.030 16.0/18.0 - 3.5/5.5 N 0.25
S20153 - - 0.03 0.75 6.4/7.5 0.045 0.015 16.0/17.5 - 4.0/5.0 N 0.10/0.25; Cu 1.00
S20161 - Gall-Tough 0.15 3.0/4.0 4.0/6.0 0.040 0.040 15.0/18.0 - 4.0/6.0 N 0.08/0.20
S20162 - - 0.15 2.5/4.5 4.0/8.0 0.040 0.040 16.5/21.0 0.05/0.25 6.0/10.0 N 0.05/0.25
S20200 30202 202 0.15 1.00 7.50/10.0 0.060 0.030 17.0/19.0 - 4.00/6.00 N 0.25
S20300 - XM-1 (203EZ) 0.08 1.00 5.0/6.5 0.045 0.18/0.35 16.0/18.0 - 5.0/6.5 Cu 1.75/2.25
S20400 - - 0.030 1.00 7.0/9.0 0.040 0.030 15.0/17.0 - 1.50/3.00 N 0.15/0.30
S20500 - 205 0.12/0.25 1.00 14.0/15.5 0.060 0.030 16.5/18.0 - 1.0/1.7 N 0.32/0.40
S20910 - XM-19 (Nitronic 50) 0.06 0.75 4.0/6.0 0.040 0.030 20.5/23.5 1.50/3.00 11.5/13.5 Nb 0.10/0.30; V 0.10/0.30
S21400 - XM-31 (Tenelon) 0.12 0.30/1.00 14.0/16.0 0.045 0.030 17.0/18.5 - 1.00 -
S21460 - XM-14 0.12 0.75 14.0/16.0 0.060 0.030 17.0/19.0 - 5.0/6.0 N 0.35/0.50
S21600 - XM-17 (216) 0.08 0.75 7.5/9.0 0.045 0.030 17.5/22.0 2.00/3.00 5.0/7.0 N 0.25/0.50
S21603 - XM-18 (216L) 0.03 0.75 7.5/9.0 0.045 0.030 17.5/22.0 2.00/3.00 5.0/7.0 N 0.25/0.50
S21800 - Nitronic 60 0.10 3.5/4.5 7.0/9.0 0.060 0.030 16.0/18.0 - 8.0/9.0 N 0.08/0.18
S21900 - 21-6-9 (Nitronic 40) 0.08 1.00 8.00/10.00 0.045 0.030 19.0/21.50 - 5.50/7.50 N 0.15/0.40
S21904 - XM-11 (Nitronic 40) 0.04 1.00 8.00/10.00 0.045 0.030 19.00/21.50 - 5.50/7.50 N 0.15/0.40
S24000 - XM-29 (Nitronic 33) 0.08 0.75 11.5/14.5 0.060 0.030 17.0/19.0 - 2.3/3.7 N 0.20/0.40
S24100 - 18-2Mn (Nitronic 32) 0.15 1.00 11.0/14.0 0.045 0.030 16.5/19.00 - 0.50/2.50 N 0.20/0.45
S28200 - 18-18 Plus 0.15 1.00 17.00/19.00 0.045 0.030 17.00/19.00 0.75/1.25 - N 0.40/0.60; Cu 0.75/1.25

 

Special Austenitic Grades


Designation Chemical composition % by mass max unless stated
UNS No SAE No AISI No / Common Name C Si Mn P S Cr Mo Ni Others
N08020 - 20Cb-3 0.07 1.00 2.00 0.045 0.035 19.0/21.0 2.00/3.00 32.0/38.0 Cu 3.0/4.0; Nb 8xC / 1.00
N08024 - 20Mo-4 0.03 0.50 1.00 0.035 0.035 22.50/25.00 3.50/5.00 35.00/40.00 Cu 0.50/1.50; Nb+Ta 0.15/0.35
N08026 - 20Mo6 0.03 0.50 1.00 0.03 0.03 22.00/26.00 5.00/6.70 33.0/37.20 Cu 2.00/4.00; N 0.10/0.16
N08028 - Sanicro28 0.030 1.0 2.50 0.030 0.030 26.0/28.0 3.0/4.0 30.0/34.0 Cu 0.6/1.4
N08366 - AL-6X 0.035 1.00 2.00 0.040 0.030 20.00/22.00 6.00/7.00 23.50/25.50 -
N08367 - AL-6XN 0.030 1.00 2.00 0.040 0.030 20.0/22.0 6.0/7.0 23.5/25.5 Cu 0.75; N 0.18/0.25
N08700 - JS700 0.04 1.00 2.00 0.040 0.030 19.0/23.0 4.3/5.0 24.0/26.0 Cu 0.50; Nb 8xC / 0.40
N08904 - 904L 0.020 1.00 2.00 0.045 0.035 19.0/23.0 4.0/5.0 23.0/28.0 Cu 1.0/2.0
N08925 - 1925hMo 0.020 0.50 1.0 0.045 0.030 19.0/21.0 6.0/7.0 24.0/26.0 Cu 0.8/1.5; N 0.1/0.2
N08926 - - 0.020 1.50 2.00 0.030 0.010 19.0/21.0 6.0/7.0 24.0/26.0 Cu 0.5/1.5; N 0.15/0.25
S30600 - Cronifer 1815 LCSi 0.018 3.7/4.3 2.00 0.020 0.020 17.0/18.5 0.20 14.0/15.5 Cu 0.50
S30601 - - 0.015 5.0/5.6 0.50/0.80 0.030 0.013 17.0/18.0 0.20 17.0/18.0 Cu 0.05; N 0.35
S31050 - 310MoLN 0.020 0.50 2.00 0.030 0.010 24.0/26.0 1.60/2.60 0.09/0.15 N 0.09/0.15
S31254 - 254SMO 0.020 0.80 1.00 0.030 0.010 19.5/20.5 6.0/6.5 17.5/18.5 Cu 0.50/1.00; N 0.18/0.22
S31266 - - 0.030 1.00 2.0/4.0 0.035 0.020 23.0/25.0 5.2/6.2 21.0/24.0 Cu 1.00/2.50; N 0.35/0.60; W 1.50/2.50
S31277 - - 0.020 0.50 3.00 0.030 0.010 20.5/23.0 6.5/8.0 26.0/28.0 Cu 0.5/1.50; N 0.30/0.40
S32050 - - 0.030 1.00 1.50 0.035 0.020 22.0/24.0 6.0/6.8 20.0/23.0 Cu 0.40
S32615 - - 0.07 4.8/6.0 2.00 0.045 0.030 16.5/19.5 0.30/1.50 19.0/22.0 Cu 1.50/2.50
S32654 - 654SMO 0.020 0.50 2.0/4.0 0.030 0.005 24.0/25.0 7.0/8.0 21.0/23.0 Cu 0.30/0.60; N 0.45/0.55
S34565 - Nirosta 4565S 0.030 1.00 5.0/7.0 0.030 0.010 23.0/25.0 4.0/5.0 16.0/18.0 N 0.40/0.60; Nb 10x C / 1.00
S35135 - - 0.08 0.60/1.00 1.00 0.045 0.015 20.0/25.0 4.0/4.8 30./38.0 Ti 0.40/1.00
S38100 - XM-15 (18-18-2) 0.08 1.50/2.50 2.00 0.030 0.030 17.0/19.0 - 17.5/18.5 -
S38815 - - 0.030 5.5/6.5 2.00 0.040 0.020 13.0/15.0 0.75/1.50 13.0/17.0 Cu 0.75/1.50; Al 0.30

 

AISI (ASTM/ASME) and UNS Ferritic Stainless Steel Grades


Designation Chemical composition % by mass max unless stated
UNS No SAE No AISI No / Common Name C Si Mn P S Cr Mo Ni Others
S18200 - XM-34 (18-2FM) 0.08 1.00 2.50 0.04 0.15 min 17.5/19.5 1.50/2.50 - -
S18235 - - 0.025 1.00 0.50 0.030 0.15/0.35 17.5/18.5 2.00/2.50 1.00 N 0.025; (C+N) 0.035; Ti 0.30/1.00
S40300 51403 403 0.15 0.50 1.00 0.040 0.030 11.5/13.0 - - -
S40500 51405 405 0.08 1.00 1.00 0.040 0.030 11.5/14.5 - - Al 0.10./0.30
S40800 - - 0.08 1.00 1.00 0.045 0.045 11.5/13.0 - 0.50 Ti 12xC/1.10
S40900 51409 409 0.08 1.00 1.00 0.045 0.045 10.5/11.75 - 0.50 Ti 6xC/0.75
S40910 - - 0.030 1.00 1.00 0.040 0.020 10.5/11.7 - 0.50 N 0.030; Ti: 6x(C+N)/0.50; Nb 0.17
S40920 - - 0.030 1.00 1.00 0.040 0.020 10.5/11.7 - 0.50 N 0.030; Ti 0.15/0.50; Nb 0.10
S40930 - - 0.030 1.00 1.00 0.040 0.020 10.5/11.7 - 0.50 N 0.030; (Ti+Nb) [0.08+8x(C+N)]/0.75; Ti 0.05
S40945 - - 0.030 1.00 1.00 0.040 0.030 10.5/11.7 - 0.50 N 0.030; Ti 0.05/0.20; Nb 0.18/0.40
S40975 - - 0.030 1.00 1.00 0.040 0.030 10.5/11.7 - 0.50/1.00 N 0.030; Ti: 6x(C+N)/0.75
S40976 - - 0.030 1.00 1.00 0.040 0.030 10.5/11.7 - 0.75/1.00 N 0.040; Nb 10x(C+N)-0.80
S40977 - - 0.030 1.00 1.00 0.040 0.015 10.5/12.5 - 0.30/1.00 N 0.030
S41003 - - 0.030 1.00 1.50 0.040 0.030 10.5/12.5 - 1.50 -
S41008 - 410S 0.08 1.00 1.00 0.040 0.030 11.5/13.5 - - -
S41045 - - 0.030 1.00 1.00 0.040 0.030 12.0/13.0 - 0.50 N 0.030; Nb 9x(C+N)/0.60
S41050 - - 0.04 1.00 1.00 0.040 0.030 10.5/12.5 - 0.60/1.10 N 0.10
S41500 - - 0.05 0.60 0.50/1.00 0.030 0.030 11.5/14.0 0.50/1.00 3.5/5.5 -
S41603 - - 0.08 1.00 1.25 006 0.15min 12.0/14.0 - - -
S42035 - - 0.08 1.00 1.00 0.045 0.030 13.5/15.5 0.2/1.2 - Ti 0.30/0.50
S43000 51430 430 0.12 1.00 1.00 0.040 0.030 16.0/18.0 - - -
S43020 51430F 430F 0.12 1.00 1.25 0.060 0.15 min 16.0/18.0 0.60 - -
S43023 51430FSe 430FSe 0.12 1.00 1.25 0.060 0.060 16.0/18.0 - - Se 0.15
S43036 - 430Ti 0.10 1.00 1.00 0.040 0.030 16.00/19.50 - 0.75 Ti 5xC/0.75
S43400 51434 434 0.08 1.00 1.00 0.040 0.030 16.0/18.0 0.75/1.25 - -
S43600 51436 436 0.08 1.00 1.00 0.040 0.030 16.0/18.0 0.75/1.25 - Nb+Ta 5xC/0.70
S44200 51442 442 0.20 1.00 1.00 0.040 0.035 18.0/23.0 - - -

 

Special Ferritic Grades


Designation Chemical composition % by mass max unless stated
UNS No SAE No AISI No / Common Name C Si Mn P S Cr Mo Ni Others
S32803 - Cronifer 2803Mo 0.015 0.55 0.50 0.020 0.0035 28.0/29.0 1.80/2.50 3.0/4.0 N 0.020; (C+N) 0.030; Nb 0.15/0.50
S43035 - 435 0.030 1.00 1.00 0.040 0.030 17.0/19.0 - 0.50 Ti [0.20+4(C+N)] / 1.10; Al 0.15
S43900 51439 439 0.07 1.00 1.00 0.040 0.030 17.0/19.0 - 0.50 Ti [0.20+4(C+N)] / 1.10; Al 0.15; N:0.04
S43903 51439LL 439LL 0.014 1.00 1.00 0.040 0.030 17.0/19.0 - 0.50 Ti [0.20+4(C+N)] / 1.10; Al 0.15; N:0.04
S43932 - - 0.030 1.00 1.00 0.040 0.030 17.0/19.0 - 0.50 N 0.030; (Ti+Nb) [0.20+4(C+N)] / 0.75; Al 0.15
S43940 - - 0.030 1.00 1.00 0.040 0.015 17.5/18.5 - 0.50 Ti 0.10/0.60; Nb [0.30+(3xC)] min
S44400 - 444 18Cr-2Mo 0.025 1.00 1.00 0.040 0.030 17.5/19.5 1.75/2.50 1.00 N 0.035; (Ti+Nb)[0.20+4(C+N)] / 0.80
S44500 - - 0.020 1.00 1.00 0.040 0.012 19.0/21.0 - 0.60 N 0.03; Cu 0.30/0.60; Nb 10x(C+N) / 0.80
S44626 - XM-33 (26-1Ti) 0.06 0.75 0.75 0.040 0.020 25.0/27.0 0.75/1.50 0.50 N 0.04; Cu 0.20; Ti 0.20/1.00
S44627 - XM-27 0.010 0.40 0.40 0.020 0.020 25.0/27.0 0.75/1.50 0.50 N 0.015; Cu 0.20; Nb 0.05/0.20; (Ni+Cu) 0.50
S44635 - Nu Monit (25-4-4) 0.025 0.75 1.00 0.040 0.030 24.5/26.0 3.5/4.5 3.5/4.5 N 0.035; (Ti+Nb){0.20+4(C+N)] / 0.80
S44660 - Sea-cure (26-3-3) 0.030 1.00 1.00 0.040 0.030 25.0/28.0 3.0/4.0 1.0/3.5 N 0.040; (Ti+Nb)0.20 / 1.00; (Ti+Nb) [6x(C+N)] min
S44700 - 29-4 0.010 0.20 0.30 0.025 0.020 28.0/30.0 3.5/4.2 0.15 N 0.020; Cu 0.15; (C+N) 0.025
S44735 - - 0.030 1.00 1.00 0.040 0.030 28.0/30.0 3.6/4.2 1.00 N 0.045; (Ti+Nb)0.20/1.00; (Ti+Nb) 6x (C+N) min
S44800 - 29-4-2 0.010 0.20 0.30 0.025 0.020 28.0/30.0 3.5/4.2 2.00/2.50 N 0.020; Cu 0.15; (C+N) 0.025
S46800 - - 0.030 1.00 1.00 0.040 0.030 18.0/20.0 - 0.50 N 0.030; Ti 0.07/0.30; Nb 0.10/0.60; (Ti+Nb) [0.20+4(C+N)] / 0.80

 

AISI (ASTM/ASME) and UNS Heat Resisting Stainless Steel Grades


Designation Chemical composition % by mass max unless stated
UNS No SAE No AISI No / Common Name C Si Mn P S Cr Mo Ni Others
S21500 - Esshete 1250 0.06/0.15 0.20/1.0 5.50/7.0 0.045 0.030 14.0/16.0 0.80/1.20 9.00/11.0 B 0.003/0.009; Nb 0.75/1.25; V 0.15/0.40
S30409 - 304H 0.04/0.10 0.75 2.00 0.045 0.030 18.0/20.0 - 8.0/10.5 -
S30415 - 153MA 0.04/0.06 1.00/2.00 0.80 0.045 0.030 18.0/19.0 - 9.0/10.0 N 0.12/0.18; Ce 0.03/0.08
S30451 - 304N 0.08 0.75 2.00 0.045 0.030 18.0/20.0 - 8.0/10.5 N 0.10/0.16
S30452 - 304HN (XM-21) 0.08 0.75 2.00 0.045 0.030 18.0/20.0 - 8.0/10.5 N 0.16/0.30
S30615 - RA85H 0.16/0.24 3.2/4.0 2.00 0.030 0.030 17.0/19.5 - 13.5/16.0 Al 0.80/1.50
S30815 - 253MA 0.05/0.10 1.40/2.00 0.80 0.040 0.030 20.0/22.0 - 10.0/12.0 N 0.14/0.20; Ce 0.03/0.08
S30900 30309 309 0.20 1.00 2.00 0.045 0.030 22.0/24.0 - 12.0/15.0 -
S30908 30309S 309S 0.08 0.75 2.00 0.045 0.030 22.0/24.0 - 12.0/15.0 -
S30909 - 309H 0.04/0.10 0.75 2.00 0.045 0.030 22.0/24.0 - 12.0/15.0 -
S30940 - 309Cb 0.08 0.75 2.00 0.045 0.030 22.0/24.0 - 12.0/16.0 Nb 10xC / 1.10
S30941 - 309HCb 0.04/0.10 0.75 2.00 0.045 0.030 22.0/24.0 - 12.0/16.0 Nb 10xC / 1.10
S31000 30310 310 0.25 1.50 2.00 0.045 0.030 24.0/26.0 - 19.0/22.0 -
S31008 30310S 310S 0.08 1.50 2.00 0.045 0.030 24.0/26.0 - 19.0/22.0 -
S31009 - 310H 0.04/0.10 0.75 2.00 0.045 0.030 24.0/26.0 - 19.0/22.0 -
S31040 - 310Cb 0.08 1.50 2.00 0.045 0.030 24.0/26.0 - 19.0/22.0 Nb 10xC / 1.10
S31041 - 310HCb 0.04/0.10 0.75 2.00 0.045 0.030 24.0/26.0 - 19.0/22.0 Nb 10xC / 1.10
S31400 30314 314 0.25 1.50/3.00 2.00 0.045 0.030 23.0/26.0 - 19.0/22.0 -
S31609 - 316H 0.04/0.10 0.75 2.00 0.045 0.030 16.0/18.0 2.00/3.00 10.0/14.0 -
S31651 - 316N 0.08 0.75 2.00 0.045 0.030 16.0/18.0 2.00/3.00 10.0/14.0 N 0.10/0.16
S32109 - 321H 0.04/0.10 0.75 2.00 0.045 0.030 17.0/19.0 - 9.0/12.0 Ti 4x(C+N) / 0.70
S33228 - - 0.04/0.08 0.30 1.00 0.020 0.015 26.0/28.0 - 31.0/33.0 Al 0.025;Ce 0.05/0.10; Nb 0.6/1.0
S33400 - 334 0.08 1.00 1.00 0.030 0.015 18.0/22.0 - 19.0/21.0 Al 0.15/0.60; Ti 0.15/0.60
S34709 - 347H 0.04/0.10 0.75 2.00 0.045 0.030 17.0/19.0 - 9.0/13.0 Nb 8xC /1.00
S34800 - 348 0.08 0.75 2.00 0.045 0.030 17.0/19.0 - 9.0/13.0 Nb+Ta 10xC / 1.00; Ta 0.10; Co 0.20
S34809 - 348H 0.04/0.10 0.75 2.00 0.045 0.030 17.0/19.0 - 9.0/13.0 Nb+Ta 10xC /1.00; Ta 0.10; Co 0.20
S35045 - - 0.06/0.10 1.00 1.50 0.045 0.015 25.0/29.0 - 32.0/37.0 Al 0.15/0.60; Ti 0.15/0.60
S35315 - 353MA 0.04/0.08 1.20/2.00 2.00 0.040 0.030 24.0/26.0 - 34.0/36.0 N 0.12/0.18; Ce 0.03/0.10
S41041 - - 0.13/0.18 0.50 0.40/0.60 0.030 0.030 11.50/13.00 0.20 0.50 Al 0.05; Nb 0.15
S41425 - - 0.05 0.50 0.50/1.00 0.020 0.005 12.0/15.0 1.50/2.00 4.0/7.0 N 0.06/0.12; Cu 0.30
S41800 - Greek Ascoloy (615) 0.15/0.20 0.50 0.50 0.040 0.030 12.00/14.00 0.50 1.80/2.20 W 2.50/3.50
S42200 - 616 0.20/0.25 0.50 0.50/1.00 0.025 0.025 11.00/12.50 0.90/1.25 0.50/1.00 V 0.20/0.30; W 0.90/1.25
S42300 - Lapelloy (619) 0.27/0.32 0.50 0.95/1.35 0.025 0.025 11.00/12.00 2.50/3.00 0.50 V 0.20/0.30
S44300 - MT443 0.20 1.00 1.00 0.040 0.030 18.0/23.0 - 0.50 Cu 0.90/1.25
S44600 51446 446 0.20 1.00 1.50 0.040 0.030 23.0/27.0 - - N 0.25
S64152 - XM-32 0.08/0.15 0.35 0.50/0.90 0.025 0.025 11.00/12.50 1.50/2.00 2.00/3.00 N 0.01/0.05; V 0.25/0.40
N08800 - 800 (332) 0.10 1.00 1.50 0.045 0.015 19.0/23.0 - 30.0/35.0 Fe 39.5 min; Al 0.15/0.60; Ti 0.15/0.60
N08810 - 800H 0.05/0.10 1.00 1.50 0.045 0.015 19.0/23.0 30.0/35.0 30.0/35.0 Cu 0.75; Fe 39.5 min; Al 0.15/0.60; Ti 0.15/0.60
N08811 - - 0.06/0.10 1.00 1.50 0.040 0.015 19.0/23.0 - 30.0/35.0 Cu 0.75; Fe 39.5 min; Al 0.15/0.60; Ti 0.15/0.60

 

AISI (ASTM/ASME) and UNS Martensitic and Precipitation Hardening Stainless Steel Grades


Designation Chemical composition % by mass max unless stated
UNS No SAE No AISI No / Common Name C Si Mn P S Cr Mo Ni Others
S13800 - XM-13 PH13-8Mo 0.05 0.10 0.20 0.010 0.008 12.25/13.25 2.00/2.50 7.50/8.50 N 0.01; Al 0.90/1.35
S15500 - XM-12 15-5PH 0.07 1.00 1.00 0.040 0.030 14.0/15.5 - 3.50/5.50 Cu 2.5/4.5; Nb 0.15/0.45
S15700 - 632 15-7PH 0.09 1.00 1.00 0.040 0.030 14.00/16.00 2.00/3.00 6.50/7.25 Al 0.75/1.50
S17400 - 630 17-4PH 0.07 1.00 1.00 0.040 0.030 15.5/17.5 - 3.00/5.00 Cu 3.00/5.00; Al 0.15/0.45
S17600 - 635 0.08 1.00 1.00 0.040 0.030 16.00/17.50 - 6.00/7.50 Al 0.40; Ti 0.40/1.20
S17700 - 631 17-7PH 0.09 1.00 1.00 0.040 0.040 16.00/18.00 - 6.50/7.75 Al 0.75/1.50
S35000 - 633 0.07/0.11 0.50 0.50/1.25 0.040 0.030 16.00/17.00 2.50/3.25 4.00/5.00 N 0.07/0.13
S35500 - 634 0.10/0.15 0.50 0.50/1.25 0.040 0.030 15.00/16.00 2.50/3.25 4.00/5.00 N 0.07/0.13
S41000 51410 410 0.15 1.00 1.00 0.040 0.030 11.5/13.5 - - -
S41040 - XM-30 0.18 1.00 1.00 0.040 0.030 11.0/13.0 - - Nb 0.05/0.30
S41400 51414 414 0.15 1.00 1.00 0.040 0.030 11.5/13.5 - 1.25/2.50 -
S41500 - - 0.05 0.60 0.50/1.00 0.030 0.030 11.5/14.0 0.50/1.00 3.5/5.5 -
S41600 51416 416 0.15 1.00 1.25 0.060 0.15 min 12.0/14.0 0.60 - Zr 0.60
S41610 - XM-6 (416 Plus X) 0.15 1.00 1.50/2.50 0.06 0.15 min 12.0/14.0 - - -
S41623 51416Se 416Se 0.15 1.00 1.25 0.060 0.060 12.0/14.0 - - Se 0.15 min
S42000 51420 420 0.15 min 1.00 1.00 0.040 0.030 12.0/14.0 - - -
S42010 - Trim Rite 0.15/0.30 1.00 1.00 0.040 0.030 13.5/15.00 0.40/0.85 0.35/0.85 -
S42020 51420F 420F 0.15 min 1.00 1.25 0.060 0.15 min 12.0/14.0 0.60 - -
S42023 51420FSe 420FSe 0.30/0.40 1.00 1.25 0.060 0.060 12.0/14.0 - - Se 0.15 min
S42900 51429 429 0.12 1.00 1.00 0.040 0.030 14.0/16.0 - - -
S43100 51431 431 0.20 1.00 1.00 0.040 0.030 15.0/17.0 - 1.25/2.50 -
S44002 51440A 440A 0.60/0.75 1.00 1.00 0.040 0.030 16.0/18.0 0.75 - -
S44003 51440B 440B 0.75/0.95 1.00 1.00 0.040 0.030 16.0/18.0 0,75 - -
S44004 51440C 440C 0.95/1.20 1.00 1.00 0.040 0.030 16.0/18.0 0.75 - -
S44020 51440F 440F 0.95/1.20 1.00 1.25 0.060 0.15 min 16.0/18.0 0.75 - Zr 0.75
S44023 51440FSe 440FSe 0.95/1.20 1.00 1.25 0.060 0.060 16.0/18.0 - - Se 0.15 min
S45000 - XM-25 Custom 450 0.05 1.00 1.00 0.030 0.030 14.00/16.00 0.50/1.00 5.00/7.00 Cu 1.25/1.75; Nb 8xC min
S45500 - XM-16 Custom 455 0.05 0.50 0.50 0.040 0.030 11.00/12.50 0.50 7.50/9.50 Cu 1.50/2.50; Nb 0.10/0.50
S45503 - - 0.010 0.20 0.50 0.010 0.010 11.00/12.50 0.50 7.50/9.50 Cu 1.50/2.50; Ti 1.00/1.35
S46500 - - 0.02 0.25 0.25 0.015 0.010 11.00/12.50 0.75/1.25 10.75/11.25 Mo 0.75/1.25; Ti 1.50/1.80
S66286 - A286 0.08 1.00 2.00 0.040 0.030 13.50/16.00 1.00/1.50 24.0/27.0 Al 0.35; B 0.0010/0.010; Ti 1.90/2.35; V 0.10/0.50

 

CARBON CONSTRUCTIONAL STEEL
GRADE CHEMICAL COMPOSITION
IS:DESIGNATION C Mn Si Cr Ni Mo
20c8 0.15 / 0.25 0.60 / 0.90 0.15 / 0.35 -- -- --
25c8 0.20 / 0.30 0.60 / 0.90 0.10 / 0.35 -- -- --
30c8 0.30 / 0.35 0.60 / 0.90 0.10 / 0.35 -- -- --
35c8 0.30 / 0.40 0.60 / 0.90 0.10 / 0.90 -- -- --
40c8 0.35 / 0.45 0.60 / 0.90 0.10 / 0.35 -- -- --
45c8 0.40 / 0.50 0.60 / 0.90 0.10 / 0.35 -- -- --
50c8 0.45 / 0.55 0.60 / 0.90 0.10 / 0.35 -- -- --
ALLOY CONSTRUCTION STEEL
GRADE C Si Mn Cr V Mo
20c15 0.16 / 0.24 0.10 / 0.35 1.30 1.70 -- -- --
27c15 0.22 / 0.32 0.10 / 0.35 1.30 1.70 -- -- --
37c15 0.35 / 0.42 0.10 / 0.35 1.30 1.70 -- -- --
35Mn6Mo3 0.30 / 0.40 0.10 / 0.35 1.30 1.80 -- -- 0.20 / 0.35
35Mn6Mo6 0.30 / 0.40 0.10 / 0.35 1.30 1.80 -- -- 0.35 /0.55
40Cr4 0.35 / 0.45 0.10 / 0.35 0.60 / 0.90 0.90 / 1.20 -- --
35Ni5Cr2 0.30 / 0.40 0.10 / 0.35 0.60 / 0.90 0.45 / 0.75 1.0 / 1.50 --
SPRING STEEL
GRADE C Mn Si Cr V
55c8 0.50 / 0.60 0.60 / 0.90 0.10 / 0.35 -- --
36c17 0.33 / 0.40 0.80 / 1.0 1.50 / 2.00 -- --
55s17 05.0 / 0.60 0.80 / 1.0 1.50 / 2.00 -- --
50Cr4 0.45 / 0.55 0.60 / 0.90 0.10 / 0.35 0.90 / 1.20 --
50Cr4v2 0.45 / 0.55 0.50 / 0.80 0.10 / 0.35 0.90 / 1.20 0.15 / 0.30
EN45A 0.55 / 0.65 070 / 1.0 1.70 / 2.0 -- --
EN47 0.45 / 0.55 0.50 / 0.80 0.50 Max 0.80 / 1.20 0.15 Min
EN48 0.45 / 0.55 0.50 / 0.80 0.10 / 0.50 1.00 / 1.40 --
CARBON CHROME BEARING STEEL
GRADE C Si Mn Cr V
103Cr2 0.95 / 1.10 0.15 / 0.30 0.25 / 0.45 0.90 / 1.20 --
103CrMn70 0.95 / 1.10 0.15 / 0.30 0.60 / 0.80 1.50 / 1.70 --
AISI52100 0.98 / 1.10 0.15 / 0.35 0.25 / 0.45 1.30 / 1.60 --
EN31 0.90 / 1.20 0.10 / 0.35 0.30 / 0.75 1.00 / 1.60 --
HOTWORK TOOL STEEL
GRADE C Si Mn Cr V Mo S/P
H-11 0.35 / 0.45 0.90 / 0.10 0.20 / 0.35 5.0 / 5.5 0.30 1.50 0.025 MAX
H-12 0.35 / 0.45 0.90 / 0.10 0.20 / 0.35 5.0 / 5.5 0.30 1.50 0.025 MAX
H-13 0.35 / 0.45 0.90 / 0.10 0.20 / 0.35 5.0 / 5.5 1.0 / 1.2 1.50 0.025 MAX
CARBON TOOL STEEL
GRADE C Si Mn S P
T-70 0.65 / 0.75 0.20 / 0.30 0.25 / 0.35 0.03 MAX 0.03 MAX
T-90 0.85 / 0.95 0.20 / 0.30 0.20 / 0.30 0.03 MAX 0.03 MAX
T-103 0.90 / 1.1 0.20 / 0.30 0.20 / 0.30 0.03 MAX 0.03 MAX
AUSTENITIC STAINLESS STEEL
GRADE C ( MAX) Mn (MAX) P (MAX) S (MAX) Si (MAX) Cr Ni
ASTM
302 0.15 2.00 0.045 0.030 0.75 17.0 / 19.0 8.0 / 10.0
3.4 0.08 2.00 0.045 0.030 0.75 18.0 / 20.0 8.0 / 10.5
FERRITIC STAINLESS STEEL
GRADE C ( MAX) Mn (MAX) P (MAX) S (MAX) Si (MAX) Cr Ni
430 0.12 1.00 0.04 0.03 1.0 16.0 / 18.0 0.75
446 0.20 1.30 0.04 0.03 1.0 23.0 / 27.0 --
MARTENSITIC STAINLESS STEEL
GRADE C ( MAX) Mn (MAX) P (MAX) S (MAX) Si (MAX) Cr Ni
410 0.15 1.00 0.040 0.030 1.0 11.5 / 13.5 0.75
410S 0.80 1.00 0.040 0.030 1.0 11.5 / 13.5 0.60
414 0.15 1.00 0.040 0.030 1.0 15.0 / 17.0 1.25 / 2.50
431 0.20 1.00 0.040 0.030 1.0 15.0 / 17.0 1.25 / 2.50
HOTWORK TOOL STEEL
C Mn Si P S
1.0 / 1.30 11.0 / 14.0 0.60 MAX 0.07 MAX 0.05 MAX