35SPb20 - ISO 683-4-2016

Grade	35SPb20
Corresponding Standard	ISO 683-4-2016 Heat-treatable steels,alloy steels and free-cutting steels--Part 4: free-cutting steels
Classification	Carbon Steel
Properties	Machinability Quench Hardness

35SPb20 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Pb
Minimum Value	0.32	-	0.7	-	0.15	0.15
Maximum Value	0.39	0.4	1.1	0.06	0.25	0.35

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.

35SPb20 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)	550~720			≤210
10<d≤16	Untreated (U)	550~720			≤204
16<d≤40	Untreated (U)	520~680			≤198
40<d≤63	Untreated (U)	520~670			≤196
63<d≤100	Untreated (U)	500~650			≤190
5<d≤10	Quenching and Tempering	630~780	≥430	≥15
10<d≤16	Quenching and Tempering	630~780	≥430	≥15
16<d≤40	Quenching and Tempering	600~750	≥380	≥16
40<d≤63	Quenching and Tempering	550~700	≥320	≥17
63<d≤100	Quenching and Tempering	550~700	≥320	≥17

Approximate Comparison Table

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
35SPb20	35SPb20	1.0756

35SPb20 Corresponding Standards(Same grade name, different standards)

1	EN 10277-3-1999
	35SPb20 1.0756
2	DIN 1651-1988
	35SPb20 1.0756
3	DIN EN ISO 683-4-2018
	35SPb20
4	ISO 683-4-2016
	35SPb20
5	ISO 683-18-2014
	35SPb20
6	EN 10277-2018
	35SPb20 1.0756
7	NF EN 10087-1999
	35SPb20 1.0756

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