Maryland Metrics

Stainless Steel Chemical Composition
and Mechanical Properties

Grade	Chemical Composition								Others	Mechanical Properties, min
AISI										Elongation, % (G.L.: 2in or 50 mm)						Hardness Test Max.
	C	Si.	Mn	P (max)	S (max)	Ni	Cr	Mo		Tensile Strength min. Ksi (Mpa)	Yeild Point min Ksi (Mpa)	Full section Specimen	Strip Specimen		Round Specimen	Brinell	Rockwell
													t= 6/16in	t=5/16in
304	<=0.08	<=0.75	<=2.00	0.04	0.03	8.00~11.00	18.00~20.00	-	-	75(515)	30(205)	35	35	56t +17.50	28	192	B 90
304 H	0.04~ 0.10	<=0.75	<=2.00	0.04	0.03	8.00~11.00	18.00~20.00	-	-	75(515)	30(205)	35	35	56t +17.50	28	192	B 90
304 L	<=0.035	<=0.75	<=2.00	0.04	0.03	8.00~13.00	18.00-20.00	-	-	70(485)	25(170)	35	35	56t +17.50	28	192	B 90
304 N	<=0.08	<=0.75	<=2.00	0.04	0.03	8.00~11.00	18.00~20.00	-	N: 0.10~0.16	80(550)	35(240)	35	35	56t +17.50	28	192	B 90
304 LN	<=0.035	<=0.75	<=2.00	0.04	0.03	8.00~11.00	18.00~20.00	-	N: 0.10~0.16	75(515)	30(205)	35	35	56t +17.50	28	192	B 90
309	<=0.15	<=0.75	<=2.00	0.04	0.03	12.00~15.00	22.00~24.00	-	-	75(515)	30(205)	35	35	56t +17.50	28	192	B 90
310	<=0.15	<=0.75	<=2.00	0.04	0.03	19.00~22.00	24.00~26.00	-	-	75(5150	30(205)	35	35	56t +17.50	28	192	B 90
316	<=0.08	<=0.75	<=2.00	0.04	0.03	11.00~14.00	16.00~18.00	2.00~3.00	-	75(515)	30(205)	35	35	56t +17.50	28	192	B 90
316 H	0.04 <=0.10	<=0.75	<=2.00	0.04	0.03	11.00~14.00	16.00~18.00	2.00~3.00	-	75(515)	30(205)	35	35	56t +17.50	28	192	B 90
316 L	<=0.035	<=0.75	<=2.00	0.04	0.03	10.00~15.00	16.00~18.00	2.00~3.00	-	70(485)	25(170)	35	35	56t +17.50	28	192	B 90
316 N	<=0.08	<=0.75	<=2.00	0.04	0.03	11.00~14.00	16.00~18.00	2.00~3.00	N: 0.10~0.16	80(550)	35(240)	35	35	56t +17.50	28	192	B 90
316 LN	<=0.035	<=0.75	<=2.00	0.04	0.03	10.00~15.00	16.00~18.00	2.00~3.00	N: 0.10-0.16	75(515)	30(205)	35	35	56t +17.50	28	192	B 90
317	<=0.08	<=0.75	<=2.00	0.04	0.03	11.00~14.00	18.00~20.00	3.00~4.00	-	75(515)	30(205)	35	35	56t +17.50	28	192	B 90
321	<=0.08	<=0.75	<=2.00	0.04	0.03	9.00~13.00	17.00~20.00	-	Ti: 5 x C% ~ 0.70 ^B	75(515)	30(205)	35	35	56t +17.50	28	192	B 90
321 H	0.04~ 0.10	<=0.75	<=2.00	0.04	0.03	9.00~13.00	17.00~20.00	-	Ti: 4 x C% ~0.60	75(515)	30(205)	35	35	56t +17.50	28	192	B 90
347	<=0.08	<=0.75	<=2.00	0.04	0.03	9.00~13.00	17.00~20.00	-	Nb + Ta: 10 x C% ~1.00	75(515)	30(205)	35	35	56t +17.50	28	192	B 90
347 H	0.04~ 0.10	<=0.75	<=2.00	0.04	0.03	9.00~13.00	17.00~20.00	-	Nb +Ta: 8 XC% ~ 1.0	75(515)	30(205)	35	35	56t +17.50	28	192	B 90
405	<=0.08	<=0.75	<=1.00	0.04	0.03	<=0.50	11.5~13.5	-	AI: 0.10~0.30	60(415)	30(205)	20	20	*2	-	207	B 95
410	<=0.15	<=0.75	<=1.00	0.04	0.03	<=0.50	11.5~13.5	-	-	60(415)	30(205)	20	20	*2	-	207	B 95
429	<=0.12	<=0.75	<=1.00	0.04	0.03	<=0.50	14.00~16.00	-	-	60(415)	35(240)	20	20	*2	-	190	B 90
430	<=0.12	<=0.75	<=1.00	0.04	0.03	<=0.50	16.00~18.00	-	-	60(415)	35(240)	20	20	*2	-	190	B 90
443	<=0.20	<-0.75	<=1.00	0.04	0.03	<=0.50	18.00~23.10	-	Cu: 0.90~1.25	70(485)	40(275)	20	20	*2	-	207	B 95
446	<=0.20	<=0.75	<=1.50	0.04	0.03	<=0.50	23.00~30.00	-	N: 0.10~0.25	70(485)	40(275)	18	18	*2	-	207	B 95
329	<=0.089	<=0.75	<=1.00	0.04	0.03	2.50~5.00	23.00~28.00	1.00<=2.0	-	90(621)	70(483)	20	20	*2	-	171	C28
409	<=0.089	<=1.00	<=1.00	0,045	0.05	<=0.50	10.50~11.75	-	Ti: 6xC% ~ 0.75	55(38)	30(205)	20	20	*2	-	207	B95
XM-8	<=0.07	<=1.00	<=1.00	0.04	0.03	<=0.50	17.00~19.00	-	Ai: <=0.15	60(415)	30(205)	20	20	*2	-	190	B 90
XM-8									Ti: 12xC% ~1.10
316 Ti	<=0.08	<=0.75	<=2.00	0.04	0.03	11.00~14.00	16.00~18.00	2.00~3.00	Ti: 5xC% ~0.75	75(515)	30(205)	35	35	56t +17.50	28	192	B 90

Supplementary Chart: Chemical Composition & Mechanical Properties

Classification	Standard of country					Chemical Composition								Mechanical Properties
	USA	German		UK	Japan	C Max	Si Max	Mn Max	P Max	S Max	Ni	Cr	Mo	Tensile test (Min)				Hardness (Max)
	AISI	DIN W-Nr	DIN SHORTNAME	BS	JIS									Yield Strength		Tensile Strength		Elongation	HB	HRB	HV
	AISI	DIN W-Nr	DIN SHORTNAME	BS	JIS									kg/mm²	N/mm²	kgf/mm²	N/mm²	Elongation	HB	HRB	HV
Austenite	301	1.4310	X12Cr Ni 177	301S21	SUS 301	0.15	1.00	2.00	0.045	0.030	6.00-8.00	16.00-18.00	-	21	206	53	520	40	187	90	200
	304	1.4301	XDCr Ni 189	304S16	SUS304	0.08	1.00	2.00	0.045	0.030	8.00-10.50	18.00-20.00	-	21	206	53	520	40	187	90	200
	304L	1.4306	X3Cr Ni 89	304S12	SUS 304L	0.03	1.00	2.00	0.045	0.030	9.00-13.00	18.00-20.00	-	18	177	49	481	40	187	90	200
	305	1.4303	X5Cr Ni 1911	305S19	SUS 305	0.12	1.00	2.00	0.045	0.030	10.50-13.00	17.00-19.00	-	18	177	49	481	40	187	90	200
	310S	1.4841	X 15 Cr Ni Si 2520	310S24	SUS 310S	0.08	1.50	2.00	0.045	0.030	19.00-22.00	24.00-26.00	-	21	206	53	520	40	187	90	200
	316	1.4401	X15 Cr Ni Mo 1810	306S16	SUS 316	0.08	1.00	2.00	0.045	0.030	10.00-14.00	16.00-18.00	2.00-3.00	21	206	53	520	40	187	90	200
	316L	1.4435	X15 Cr Ni Mo 1812	306S12	SUS 316 L	0.03	1.00	2.00	0.045	0.030	12.00-15.00	16.00-18.00	2.00-3.00	18	177	49	481	40	187	90	200
Ferrite	430	1.4016	X8Cr 17	430S17	SUS 430	0.12	0.75	1.00	0.040	0.030	0.60	16.00-18.00	-	21	206	46	451	22	183	88	200
	434	1.4113	-	-	SUS 434	0.12	1.00	1.00	0.040	0.030	0.60	16.00-18.00	0.75-1.25	21	206	46	451	22	183	88	200
Martensite	410	1.4006	X10 Cr 13	410S21	SUS 410	0.15	1.00	1.00	0.040	0.030	0.60	11.50-13.50	-	21	206	45	441	20	200	93	210
	420	14021	X 20 Cr 13	420S29	SUS 420 J1	0.16-0.25	1.00	1.00	0.040	0.030	0.60	12.00-14.00	-	23	226	53	520	18	223	97	234
	420	1.4034	X 40 Cr 13	420S45	SUS 420 J2	0.26 - 0.40	1.00	1.00	0.040	0.030	0.60	12.00-14.00	-	23	226	55	539	18	235	99	247

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