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Steel 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

Chemical compositions of 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

Chemical compositions of 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

Chemical compositions of 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