SNB24-4 - JIS G 4108-2010 - H2ABC

中文版

Grade	SNB24-4
Corresponding Standard	JIS G 4108-2010 Alloy Steel Bars for Special Application Bolting Materials (Amendment 1)
Classification	Alloy Steel

SNB24-4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo
Minimum Value	0.37	0.2	0.7	-	-	0.7	1.65	0.3
Maximum Value	0.44	0.35	0.9	0.025	0.025	0.95	2	0.4

SNB24-4 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
Bar; d≤75	Quenching + Tempering	≥930	≥825	≥13	≥45	269~341	≥47
Bars; 75<d≤150	Quenching + Tempering	≥930	≥825	≥13	≥45	277~352	≥47
Bars; 150<d≤200	Quenching + Tempering	≥930	≥825	≥13	≥45	285~363	≥47
Bar stock; 200<d≤240	Quenching + Tempering	≥930	≥825	≥13	≥45	293~363	*
Bar; d≤240	Annealing					≤235

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!