35SMn20 - ISO 683-4-2016

Grade	35SMn20
Corresponding Standard	ISO 683-4-2016 Heat-treatable steels,alloy steels and free-cutting steels--Part 4: free-cutting steels
Classification	Alloy Steel
Properties	Machinability Quench Hardness

35SMn20 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.32	-	0.9	-	0.15
Maximum Value	0.39	0.4	1.4	0.06	0.25

①Elements not quoted shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All reasonable precautions are to be taken to avoid the addition of such elements from scrap and other materials used in manufacture which affect the mechanical properties and the suitability. However, if agreed, the manufacturer can add elements such as Ca, Se,Te, etc. for the purpose of improving the machinability. These elements have to be reported in the inspection document.

35SMn20 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)	580~770			≤225
10<d≤16	Untreated (U)	580~770			≤225
16<d≤40	Untreated (U)	560~750			≤219
40<d≤63	Untreated (U)	560~740			≤216
63<d≤100	Untreated (U)	550~740			≤216
10<d≤16	Quenching and Tempering	620~820	≥420	≥14
16<d≤40	Quenching and Tempering	590~790	≥365	≥16
40<d≤63	Quenching and Tempering	540~740	≥335	≥17

1 Approximate Comparison Table

China	International Organization for Standardization
GB	ISO
Y40Mn	35SMn20

2 Approximate Comparison Table

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

35SMn20 Corresponding Standards(Same grade name, different standards)

1	ISO 683-9-1988
	35SMn20 Type 8
2	DIN EN ISO 683-4-2018
	35SMn20
3	ISO 683-4-2016
	35SMn20
4	ISO 683-18-2014
	35SMn20
5	EN 10277-2018
	35SMn20 1.0766

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