38SMn28 - DIN EN ISO 683-4-2018

Grade	38SMn28
Corresponding Standard	DIN EN ISO 683-4-2018 Heat-Treatable Steels,alloy Steels and Free-Cutting Steels--Part 4: Free-Cutting Steels
Classification	Alloy Steel
Properties	Machinability Quench Hardness

38SMn28 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.35	-	1.2	-	0.24
Maximum Value	0.4	0.4	1.5	0.06	0.33

38SMn28 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
5<d≤10	Untreated (U)	580~780			≤228
10<d≤16	Untreated (U)	580~750			≤219
16<d≤40	Untreated (U)	560~730			≤213
40<d≤63	Untreated (U)	560~730			≤213
63<d≤100	Untreated (U)	550~700			≤204
5<d≤10	Quenching and Tempering	700~850	≥480	≥15
10<d≤16	Quenching and Tempering	700~850	≥460	≥15
16<d≤40	Quenching and Tempering	700~850	≥420	≥15
40<d≤63	Quenching and Tempering	700~850	≥400	≥16
63<d≤100	Quenching and Tempering	630~800	≥380	≥16

Approximate Comparison Table Free-Cutting Structural Steel

China	Japan	United States	International Organization for Standardization	Germany		France	European Standard		Russia	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	EN	Numerical Grade	GOST	BS EN/BS
Y40Mn	SUM42	1141 1139	44SMn28 35SMn20	38SMn28	1.0760	38SMn28	38SMn28	1.0760	A40Г	38SMn28

38SMn28 Corresponding Standards(Same grade name, different standards)

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