45Mn U21452 - GB /T 699-2015

Grade	45Mn
China ISC	U21452
Corresponding Standard	GB /T 699-2015 Quality carbon structure steels
Classification	Carbon Steel
Properties	Impact Toughness Fatigue Resistance Machinability

45Mn Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu
Minimum Value	0.42	0.17	0.7	-	-	-	-	-
Maximum Value	0.5	0.37	1	0.035	0.035	0.25	0.3	0.25

45Mn Mechanical Properties

diameter(thickness) d mm	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
d=25 (Sample size)	Normalizing + Quenching + Tempering	≥620	≥375	≥15	≥40	Unprocessed Steel ≤240	KU2 ≥39
						Annealed Steel ≤217

1 Approximate Comparison Table

China		Japan	United States		International Organization for Standardization	France	Russia	Sweden	United Kingdom
GB	ISC	JIS	ASTM/AISI	UNS	ISO	NF EN/NF	GOST	SS	BS EN/BS
45Mn	U21452	(SWRH47B)	1046	G10460	SL SM	45M5	45г	1672	080A47

2 Approximate Comparison Table

China		Japan	United States	International Organization for Standardization	European Standard
GB	ISC	JIS	ASTM/AISI	ISO	EN	Numerical Grade
45Mn (GB/T 699-2015)	U21452	SWRH47B (JIS G3506:2004)	1046 (ASTM A29/A29M:2005)	C45E4 (ISO 683-18:1996)	C45E (EN 1008-1:1991+A1:1996) (EN 10084:1998)	1.1191

45Mn 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"!