C28500

C28500 is a lead-free material which is however quite suitable for machining Due to its structural constitution. C28500 can be therefore used as a cost-effective Replacement for conventional lead-containing machining brass provided that it must not meet high requirements as regards mechanical properties and corrosion Resistance.

Chemical Composition

Elements	Min (%)	Max (%)
Cu	57	59
Pb	-	0.25
Fe	-	0.35
Total Others	-	0.90
Zn	Remainder

Mechanical Properties According To ASTM B927 (As Per Temper HO2)

Range (inch)		From	To	UTS Min (ksi)	UTS Max (ksi)	PS Min (ksi)	Elongation Min (%)	Hardness Min (HRB)	Hardness Max (HRB)
Round (Dia)		0.059	0.500	69	-	43	8	-	-
		0.500	1.000	65	-	36	12	-	-
		1.000	2.953	59	-	26	16	-	-
Hex (A/F)		0.118	0.500	69	-	43	8	-	-
		0.500	1.000	65	-	36	12	-	-
		1.000	2.756	59	-	26	16	-	-
Square (A/F)		0.118	0.500	69	-	43	8	-	-
		0.500	1.000	65	-	36	12	-	-
		1.000	2.362	59	-	26	16	-	-
Rectangle	Thickness	0.118	0.500	69	-	43	8	-	-
	Thickness	0.500	1.000	65	-	36	12	-	-
	Thickness	1.000	1.969	59	-	26	16	-	-

Range (mm)		From	To	UTS Min (MPa)	UTS Max (MPa)	PS Min (MPa)	Elongation Min (%)	Hardness Min (HRB)	Hardness Max (HRB)
Round (Dia)		1.5	12	480	-	300	8	-	-
		12	25	450	-	250	12	-	-
		25	75	410	-	180	18	-	-
Hex (A/F)		3	12	480	-	300	8	-	-
		12	25	450	-	250	12	-	-
		25	70	410	-	180	18	-	-
Square (A/F)		3	12	480	-	300	8	-	-
		12	25	450	-	250	12	-	-
		25	50	410	-	180	18	-	-
Rectangle	Thickness	3	12	480	-	300	8	-	-
	Thickness	12	25	450	-	250	12	-	-
	Thickness	25	50	410	-	180	18	-	-