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Stainless Steel

Chemical Properties | Physical Properties | Mechanical Properties | Other Properties

Chemical Properties

Stainless Steel Grade Designation	Equivalent Specification		% Chemical Composition
Stainless Steel Grade Designation	IS-6911	AISI	C Max	Si Max	Mn Max	Cr	Ni	P Max	S Max	Other Elements
SS301	10 Cr 17 Ni 7	301	0.15	1.00	2.00	16.00/18.00	6.00/8.00	0.045	0.030	-
SS304	04 Cr 18 Ni 10	304	0.08	0.75	2.00	18.00/20.00	8.00/10.50	0.045	0.030	-
SS304L	02 Cr 18 Ni 11	304L	0.03	0.75	2.00	18.00/20.00	8.00/12.00	0.045	0.030	-
SS309	-	309	0.20	0.75	2.00	22.00/24.00	12.00/15.00	0.045	0.030	-
SS309S	-	309S	0.08	0.75	2.00	22.00/24.00	12.00/15.00	0.045	0.030	-
SS310	-	310	0.25	1.50	2.00	24.00/26.00	19.00/22.00	0.045	0.030	-
SS310S	-	310S	0.08	1.50	2.00	24.00/26.00	19.00/22.00	0.045	0.030	-
SS316	04 Cr 17 Ni 12 Mo 2	316	0.08	0.75	2.00	16.00/18.00	10.00/14.00	0.045	0.030	Mo 2.00/3.00
SS316L	02 Cr 17 Ni 12 Mo 2	316L	0.03	0.75	2.00	16.00/18.00	10.00/14.00	0.045	0.030	Mo 2.00/3.00
SS317	-	317	0.08	0.75	2.00	18.00/20.00	11.00/15.00	0.045	0.030	Mo 3.00/4.00
SS317L	-	317L	0.03	0.75	2.00	18.00/20.00	11.00/15.00	0.045	0.030	Mo 3.00/4.00
SS321	04 Cr 18 Ni 10 Ti 2	321	0.08	0.75	2.00	17.00/19.00	9.00/12.00	0.045	0.030	Ti= 5X(C+N) Max Min = 0.70
SS347	-	347	0.08	0.75	2.00	17.00/19.00	9.00/12.00	0.045	0.030	(Cb+Ta)= 10 X %C Min 1.00 Max
SS409	-	409	0.08	1.00	1.00	10.50/11.75	0.50 Max	0.045	0.030	Ti 6 X %C Min 0.75 Max
SS430	05 Cr 17	430	0.12	1.00	1.00	16.00/18.00	0.75 Max	0.040	0.030	-
SS434	-	434	0.12	1.00	1.00	16.00/18.00	-	0.040	0.030	Mo 0.75/1.25
SS410	12 Cr 13	410	0.15	1.00	1.00	11.50/13.50	0.75 Max	0.040	0.030	-
SS410S	-	410S	0.08	1.00	1.00	11.50/13.50	-	0.040	0.030	-
SS420	20 Cr 13 30 Cr 13 40 Cr 13	420	**	1.00	1.00	12.00/14.00	-	0.040	0.030	-
**C - over 0.15%

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Physical Properties

Stainless Steel Grade Designation	Density gm/cmcmcm	Specific Electrical Resistance at 20degree Centigrade Micro-Ohm cm	Specific Heat (0-100 degree Centigrade) Joules/gm degree Centigrade	Thermal Conductivity 100 degree CentigradeW/m degree Centigrade	Coeff.of Thermal Expansion (Per degree Centigrade X 10-6) (0-100 degree Centigrade)
SS301	8.0	72	0.50	16.33	17.0
SS304	8.0	72	0.50	16.33	17.3
SS304L	8.0	72	0.50	16.33	17.3
SS309	8.0	78	0.50	14.24	15.0
SS309S	8.0	78	0.50	14.24	15.0
SS310	8.0	78	0.50	14.24	15.9
SS310S	8.0	78	0.50	14.24	15.9
SS316	8.0	74	0.50	16.33	15.9
SS316L	8.0	74	0.50	16.33	15.9
SS317	8.0	74	0.50	16.33	16.0
SS317L	8.0	74	0.49	16.33	14.4
SS321	8.0	72	0.50	16.33	16.6
SS347	8.0	73	0.50	16.33	16.6
SS409	7.7	60	0.46	25.12	11.7
SS430	7.8	60	0.46	25.95	10.4
SS434	7.8	60	0.46	25.95	11.9
SS410	7.8	57	0.46	25.12	9.9
SS410S	7.8	55	0.46	25.12	10.3

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Mechanical Properties

Stainless Steel Grade Designation	Condition	Uts N/mm2 Min.	0.2% Proof Street N/mm2 Min.	%Elongation on 50 mm GL Min	Hardness RB Max.
SS301	Annealed	515	205	40	88
SS302	Annealed	515	205	40	92
SS304	Annealed	515	205	40	92
SS304L	Annealed	485	170	40	88
SS309	Annealed	515	205	40	95
SS309S	Annealed	515	205	40	95
SS310	Annealed	515	205	40	95
SS310S	Annealed	515	205	40	95
SS316	Annealed	515	205	40	95
SS316L	Annealed	485	170	40	95
SS317	Annealed	515	205	40	95
SS317L	Annealed	515	205	40	95
SS321	Annealed	515	205	40	92
SS347	Annealed	515	205	40	92
SS409	Annealed	380	205	20	80
SS430	Annealed	450	205	22*	88
SS434	Annealed	530	365	23	83
SS410	Annealed	450	205	22*	95
SS410S	Annealed	415	205	22*	88

* 20 % Min for Thickness less than 1.25 mm

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Other Characterstics

Stainless Steel Grade Designation	Abrasion Resistance	Cold Forming (Drawing and Stamping)	Weldability	Melting Temp. Range degree Centigrade	Scaling Temp Degree Centigrade
SS301	Good	Good	Excellent	1400-1420	800
SS304	Good	Excellent	Excellent	140-1450	900
SS304L	Good	Excellent	Excellent	1400-1450	900
SS309	Good	Good	Good	1400-1450	1100
SS309S	Good	Good	Excellent	1400-1450	1100
SS310	Good	Good	Good	1400-1450	1100
SS310S	Good	Good	Excellent	1400-1450	1100
SS316	Good	Good	Excellent	1370-1400	900
SS316L	Good	Good	Excellent	1370-1400	900
SS317	Good	Good	Excellent	1370-1400	870
SS317L	Good	Good	Excellent	1425-1430	925
SS321	Good	Good	Excellent	1400-1430	900
SS347	Good	Good	Excellent	1400-1430	900
SS409	Good	Fair	Fair	1425-1510	700
SS410	Good	Fair	Fair	1480-1530	700
SS430	Good	Fair	Fair	1430-1510	800
SS434	Good	Fair	Fair	1430-1510	800

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