SNB21-1 - JIS G 4108-2010

Grade	SNB21-1
Corresponding Standard	JIS G 4108-2010 Alloy Steel Bars for Special Application Bolting Materials (Amendment 1)
Classification	Alloy Steel

SNB21-1 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Mo	V
Minimum Value	0.36	0.2	0.45	-	-	0.8	0.5	0.25
Maximum Value	0.44	0.35	0.7	0.025	0.025	1.15	0.65	0.35

SNB21-1 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≤100	Quenching + Tempering	≥1140	≥1030	≥10	≥35	321~429	*
Bar; d≤100	Annealing					≤235

SNB21-1 Corresponding Standards(Same grade name, different standards)

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