ASTM B111 C68700 / Cuzn20al2 / Cw307g Aluminium Brass Copper Alloy Tube

• Customization: Available
• After-sales Service: Supplied
• Warranty: 30 Years
• Model NO.: seamless
• Type: Straight Copper Pipe
• Shape: Round
• Application: Refrigerator, Air Condition, Water Tube, Water Heater, Oil Cooler Pipe
• Alloy: Alloy
• Certification: CE, ISO
• Standard: ASTM B88, ASTM B837, ASTM B306, ASTM B883, ASTM B819
• Grade: T2
• Customized: Customized
• Color: Purple
• Applicaiton: Nuclear Power/Electric Power/Oil Refining
• Applicaiton2: Oil and Gas Exploitation/Coal Chemical Industry
• Applicaiton3: Fine Chemical Industry/Natural Gas
• Applicaiton4: Offshore Engineering&Shipbuilding/Sanitary Tubes
• Applicaiton5: Seawater Desalination&Water Treatment
• Applicaiton6: Instrumentation Tubing/Heat Exchanger Tube
• Applicaiton7: Various Faucet, Towel Rack, Hanger, Hard Water
• Applicaiton8: Sanitary Ware Supporting Frame, Pipe Joints
• Applicaiton9: Sanitary Products Connector, Soft Water Pipe Field
• Material: Copper Nickel Tube
• Material2: Aluminum Brass Tube
• Material3: Admiralty Brass Tube
• Material4: Aluminum Bronze Tube
• Material5: Brass Tube
• Material6: Leaded Brass
• Transport Package: Playwood Cased Plastic Bags Packing
• Specification: OD 3.18-88.9mm
• Trademark: EZS
• Origin: China
• HS Code: 74112900
• Production Capacity: 6000tons/Year

Product Description

 

Detailed Product Description

Product Name:	Copper Alloy Seamless Tubes	Standard:	DIN 17660
Material:	Copper Alloy CuZn20Al2	OD:	2mm To 350mm
WT:	0.3mm To 50mm	Length:	As Required

 

DIN 17660 CuZn20Al2 Copper Alloy Seamless Tube
 
CuZn20 ordinary brass has high strength, good plasticity, and high corrosion resistance, and is used for thin-walled pipes, corrugated pipes, paper mesh, and building materials. Tensile strength σ B (MPa): ≥ 265, Hot working temperature 820~870 ºC; Annealing temperature: 600-700 ºC; The low-temperature annealing temperature for relieving internal stress is 260 ºC.
 
 
DIN 17660 CuZn20Al2 Copper Alloy Seamless Tube
 

Al(%)	Mn(%)	Pb(%)	Fe(%)	Ni(%)	Zn(%)	Cu(%)
1.8-2.3	<=0.1	<=0.07	<=0.07	<=0.1	>=15	76.0-79.0

 
 
DIN 17660 Other Grades Or Similar Grades
 

Grade	Standard	Area	Content
CuZn 44 Pb 2	DIN 17660	Germany	Wrought copper alloys; copper-zinc alloys (brass); (special brass); chemical composition
CuZn35Ni2	DIN 17660	Germany	Wrought copper alloys; copper-zinc alloys (brass); (special brass); chemical composition
CuZn 40 Al 2	DIN 17660	Germany	Wrought copper alloys; copper-zinc alloys (brass); (special brass); chemical composition
2.0360	DIN 17660	Germany	Wrought copper alloys; copper-zinc alloys (brass); (special brass); chemical composition
CuZn 15	DIN 17660	Germany	Wrought copper alloys; copper-zinc alloys (brass); (special brass); chemical composition
2.0240	DIN 17660	Germany	Wrought copper alloys; copper-zinc alloys (brass); (special brass); chemical composition

 
 

Standard Grade	ASTM B 111 C68700	EN 12451 CuZn20Al2As	DIN 17660/1785 CuZn20Al2	BS 2871 CZ 110	JIS H3300 C6870	GB/T8890 HAL77-2
Cu	76.0-79.0	76.0-79.0	76.0-79.0	76.0-78.0	76.0-79.0	76-79
Al	1.8-2.5	1.8-2.3	1.8-2.3	1.8-2.3	1.8-2.5	1.8-2.5
Fe	0.06 max	0.07 max	0.07 max	0.06 max	0.06 max	0.06 max
Pb	0.07 max	0.05 max	0.07 max	0.07 max	0.07 max	0.03 max
Zn	Bal.	Bal.	Bal.	Bal.	Bal.	Bal.
As	0.02-0.10	0.02-0.06	0.02-0.035	0.02-0.06	0.02-0.06	0.03-0.06
P	-	0.01 max	0.01 max	-	-	0.02 max
Mn	-	0.1 max	0.1 max	-	-	-
Total impurities	-	0.3 max	0.1 max	0.3 max	-	0.3 max
Condition	O61	R390	F39	M	O	M
	-	R340	F34	TA	-	Y2
	-	-		O	-	-
Yield Strength N/mm2	125 min	150 min	150-230	-	-	-
	-	120 min	120-180	-	-	-
	-	-	-	-	-	-
Tensile Strength N/mm2	345 min.	390 min	-	-	373 min	370 min
	-	340 min	-	-	-	350 min
	-	-	-	-	-	-
Elongation (%)	-	45 min	45 min	-	40 min	40 min
	-	55 min	55 min	-	-	50 min
	-	-	-	-	-	-
Hardness Hv5	-	-	-	150 min	-	-
	-	-	-	85-110	-	-
	-	-	-	75 max	-	-
Typical use	Most used copper alloy for heat exchanger tubes application. Represents the best option for any heat exchanger which is involved with saline water. The addition of arsenic has solved the problem of dezincification. Melting Point: 935°C • Hot Working Properties: OK Density (20°C): 8,33 g/cm3 • Cold Working Properties: Very Good