Y08MnS U71088 - GB /T 8731-2008

Grade	Y08MnS
China ISC	U71088
Corresponding Standard	GB /T 8731-2008 Free-Cutting Structural Steel
Classification	Carbon Steel
Properties	Good Machinability

Y08MnS Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	-	-	1	0.04	0.32
Maximum Value	0.09	0.07	1.5	0.09	0.48

Y08MnS Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW
d=20 (Sample Diameter)	Hot Rolled Delivery Condition	350~500	≥25	≥40	≤165
d = 8~20 (steel size)	Cold Drawn State Delivery	480~810	≥7		140~217
d > 20 ~ 30 (steel size)	Cold Drawn State Delivery	460~710	≥7		140~217
d > 30 (steel size)	Cold Drawn State Delivery	360~710	≥7		140~217

New and Old Grade Replacement List

Y08MnS 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"!