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Chemical Composition & Physical Properties

Grade	Chemical Composition (mass fraction) %
	Cu	Fe 1)	Pb	Al	Mn	Sn	Ni 4)	Zn	Total impurity content
H63	62.0~65.0	0.15	0.08	-	-	-	0.5	remain	0.5

Grade	Condition	Tensile Test			Hardness Test
		Thickness/mm	Tensile Rm/ (N/mm2)	Elongation after fracture %	HV	HRB
H63	M	≥ 0.2	≥290	≥35	≤95	-
	Y2		350~470	≥20	100~130
	Y		410~630	≥10	125~165
	T		520~620	≥2.5	≥155