DT4C - GB /T 6983-2008

DT4C Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Ti	Al
Minimum Value	-	-	-	-	-	-	-	-	-	0.2
Maximum Value	0.01	0.1	0.25	0.015	0.01	0.1	0.05	0.05	0.02	0.8

DT4C Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %	Hardness HBW
Forged, Hot Rolled Round Bar, Hot Rolled Plate		≥265	≥25	HV ≤195
Cold-rolled sheet (coil)	Softening Annealing	-	-	85~140

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