Aluminium Brass Pipe

Aluminum Brass Tube

Aluminum Brass Tube is a copper zinc alloy containing aluminum and small amount of arseric which is added as an inhibitor against dezincification. Inhibited Aluminum Brass resists the action of high velocity salt and brackish water and is commonly used for condenser tube.
The outstanding characteristic of Aluminum Brass is th high resistance to impringement attack.
Aluminum Brass tubes are highly accepted and one of the extensively used material for various industrial applications.

Product Range

• Outside diameter : 5.0 mm(min) ~ 65 mm(max)
• Wall thickness : 0.5mm(Min.)
• Length : 27,000mm(Max.)Single Random, Double Random & Cut Length
• Product capacity per month : 500 M.T.
• U-bend tube (smallest bending radius ≥ 2 x tube O.D.)
• Form:Round, Square, Rectangular, Hydraulic Etc
• Type:Seamless / Heat Exchangers / Condenser Tubes
• Aluminium Brass Tubes:ASTM B 111 C 68700,ASME SB 111,C 68700
  ,BS 2871 PART 3 CZ – 110,EN 12451 CuZN20 AL2As,NFA 51 102,CuZn22 Al2,JIS H – 3300 C 6870

Chemical composition

Chemical Composition

Standard	BS 2871 PART3	ASTM B 111	DIN 1785	NFA 51 102	JIS H3300	IS 1545
Symbol	CZ 110	C 68700	CuZn20AI2	CuZn22AI2	C 6870	CuZn21AI2As
Cu	76.0-78.0	76.0-79.0	76.0-79.0	76.0-79.0	76.0-79.0	76.0-78.0
Al	1.8-2.3	1.8-2.5	1.8-2.3	1.8-2.5	1.8-2.5	1.8-2.3
Pb	0.07	0.07	0.07	0.07	0.07	0.07
Ni	–	–	0.1	–	–	–
Fe	0.06	0.06	0.07	0.06	0.06	0.06
Zn	REM’DER	REM’DER	REM’DER	REM’DER	REM’DER	REM’DER
As	0.02-0.06	0.02-0.06	0.02-0.35	0.02-0.06	0.02-0.06	0.02-0.06
P	–	–	0.01	–	–	–
Total Impurities Max.					–
	0.03	–	0.1	0.3	–	0.3
Condition	M	61	F39	–	O	O
	TA	–	F34	–	–	TA
	O	–	–	–	–	D
Yield Strength n/mm2	–	125	1 50-230	–	–	400Mpa Max.
	–	105	120-180	–	–	355Mpa Min.
	–	–	–	–	–	415Map
Tensile n/mm2 Minimum	–	345	390	–	373	–
	–	–	340	–	–	–
Elng’Tion Percent (%)	–	–	45Min.	–	40Min.	85Max.
	–	–	55Min.	–	–	80-110
	–	–	–	–	–	130Min.
Hardness HV5 –	150Min	–	–	80-130	–	–
	85-110	–	–	–	–	–
	75Max.	–	–	–	–	–
Grain Size mm (75X)	0.05Max.	0.010-0.045	–	0.010-0.045	0.010-0.045	0.010-0.045

Mechanical properties

Standard	Temper	Designation	Tensile test					Hardness test
			Outside diameter(mm)	Thickness (mm)	Tensile strength min ksi	Elongation in 2in., min%	Yield strength min ksi	Rockwell hardness
								HR30T	HR15T
ASTM	O61	C68700	5-50	0.8-0.10	50	-	18	-	-
JIS	O61	C6871T-O	50-250	0.8-0.10	36Min.	40Min.	13Min.	-	-
		C6872T-O, C687TS-O	50-250	0.8-0.10	36Min.	40Min.	13Min.	-	-