Tsubaki Products

Technical Data Locking Device Data

[Reference ]

Iron and Steel Material Strengths

Notes
*1.Normalized *2.Austenite Stainless Steel *3.Ferrite Stainless Steel *4.Martensitic *5.Solution Treated *6.Annealed
Name	JIS No.	Steel No.	Standard condition				Hardening/Tempering condition
			Yield point σ _0.2		Tensile strength σ _B		Yield point σ _0.2		Tensile strength σ _B
			MPa	kgf/mm²	MPa	kgf/mm²	MPa	kgf/mm²	MPa	kgf/mm²
Rolled steel for general structures	G3101	SS330	175	18	330～430	34～44
		SS400	215	22	400～510	41～52
		SS490	255	26	490～610	50～62
Carbon steel for machine structures	G4051	S15C	235	23	370	38 ^*1
		S25C	265	27	440	45 ^*1
		S30C	285	29	470	48 ^*1	335	34	540	55
		S35C	305	31	510	52 ^*1	390	40	570	58
		S40C	325	33	540	55 ^*1	440	45	610	62
		S45C	345	35	570	58 ^*1	490	50	690	70
		S50C	365	37	610	62 ^*1	540	55	740	75
		S55C	390	39	650	66 ^*1	590	60	780	80
Nickel-chrome steel	G4053	SNC236					590	60	740	75
		SNC631					685	70	830	85
		SNC836					785	80	930	90
Nickel-chrome-molybdenum steel	G4053	SNCM240					785	80	880	90
		SNCM431					685	70	830	85
		SNCM439					885	90	980	100
		SNCM447					930	95	1030	105
		SNCM625					835	85	930	95
		SNCM630					885	90	1080	110
Chrome-molybdenum steel	G4053	SCM430					685	70	830	85
		SCM432					735	75	880	90
		SCM435					785	80	930	95
		SCM440					835	85	980	100
		SCM445					885	90	1030	105
Manganese steel for machine structures Manganese-chrome steel	G4053	SMn433					540	55	690	70
		SMn438					590	60	740	75
		SMn443					635	65	780	80
		SMnC443					785	80	930	95
Chrome steel	G4053	SCr430					635	65	780	80
		SCr435					735	75	880	90
		SCr440					785	80	930	95
		SCr445					835	85	980	100
Stainless iron bar	G4303	SUS301 ^*2	205	21	520	53 ^*5
		SUS302 ^*2	205	21	520	53 ^*5
		SUS303 ^*2	205	21	520	53 ^*5
		SUS304 ^*2	205	21	520	53 ^*5
		SUS316 ^*2	205	21	520	53 ^*5
		SUS317 ^*2	205	21	520	53 ^*5
		SUS347 ^*2	205	21	520	53 ^*5
		SUS405 ^*3	175	18	410	42 ^*6
	G4304	SUS429 ^*3	205	21	450	46 ^*6
	G4303	SUS430 ^*3	205	21	450	46 ^*6
		SUS434 ^*3	205	21	450	46 ^*6
		SUS403 ^*4					390	40	590	60
		SUS410 ^*4					345	35	540	55
		SUS416 ^*4					345	35	540	55
		SUS431 ^*4					590	60	780	80

Notes
*1.Annealed, normalized or normalized and tempered.
*2.Cast iron products do not have a yield point. For the purpose of designing convenience, use the 70% value of each product's tensile strength to calculate the required hub outer diameter.
*3.The values given for tensile strength σ _B are for 20 to 40-mm thick cast iron parts described under "mechanical properties of sample materials attached to main parts" in JIS G 5501.
Name	JIS No.	Steel No.	Standard condition				Hardening/Tempering condition
			Yield point σ _0.2		Tensile strength σ _B		Yield point σ _0.2		Tensile strength σ _B
			Mpa	kgf/mm²	Mpa	kgf/mm²	Mpa	kgf/mm²	Mpa	kgf/mm²
Forged carbon steel products	G3201	SF340A	175	18	340～440	35～45 ^*1
		SF390A	195	20	390～490	40～50 ^*1
		SF440A	225	23	440～540	45～55 ^*1
		SF490A	245	25	490～590	50～60 ^*1
		SF540A	275	28	540～640	55～65 ^*1
		SF590A	295	30	590～690	60～70 ^*1
		SF540B					295	30	540～690	55～70
		SF590B					325	33	590～740	65～75
		SF640B					345	35	640～780	65～80
Cast carbon steel products	G5101	SC360	175	18	360	37
		SC410	205	21	410	42
		SC450	225	23	450	46
		SC480	245	25	480	49
Gray cast iron products	G5501	FC200	119	12 ^*2	170	17 ^*3
		FC250	147	15 ^*2	210	22 ^*3
		FC300	175	18 ^*2	250	26 ^*3
		FC350	203	21 ^*2	290	30 ^*3
Spheroidal graphite cast iron products	G5502	FCD400	250	26	400	41
		FCD450	280	29	450	46
		FCD500	320	33	500	51
		FCD600	370	38	600	61
		FCD700	420	43	700	71
Blackheart malleable cast iron products	G5702	FCMB210	165	17	270	28
		FCMB310	185	19	310	32
		FCMB340	205	21	340	35
		FCMB360	215	22	360	37