20SiMn - JB /T 6396-2006

Grade	20SiMn
Corresponding Standard	JB /T 6396-2006 Specification for the heavy alloy structural steel forings
Classification	Alloy Steel

20SiMn Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu
Minimum Value	0.16	0.6	1	-	-	-	-	-
Maximum Value	0.22	0.8	1.3	0.035	0.035	0.3	0.3	0.2

20SiMn Mechanical Properties

	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
≤600	Normalizing + Tempering	≥470	≥265	≥15	≥30	143~187	≥39
601~900	Normalizing + Tempering	≥450	≥255	≥14	≥30	135~179	≥39
901~1200	Normalizing + Tempering	≥440	≥245	≥14	≥30	135~179	≥39

20SiMn 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"!