Y08Sn U74082 - GB /T 8731-2008

Grade	Y08Sn
China ISC	U74082
Corresponding Standard	GB /T 8731-2008 Free-Cutting Structural Steel
Classification	Carbon Steel

Y08Sn Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Sn
Minimum Value	-	-	0.75	0.04	0.26	0.09
Maximum Value	0.09	0.15	1.2	0.09	0.4	0.25

Y08Sn 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	480~705	≥7.5		140~200
d > 20 ~ 30 (steel size)	Cold Drawn State Delivery	460~685	≥7.5		140~200
d > 30 (steel size)	Cold Drawn State Delivery	440~635	≥7.5		140~200

Y08Sn 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"!