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DIN17660 CuZn20Al2 F39 Seamless Copper Alloy Tube For Heat Exchanger

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DIN17660 CuZn20Al2 F39 Seamless Copper Alloy Tube For Heat Exchanger

Country/Region	china
City & Province	ningbo zhejiang
Categories	Boiler Parts

Product Details

DIN17660 CuZn20Al2 F39 Seamless Copper Alloy Tube For Heat Exchanger

YUHONG is one of the biggest copper alloy tubes manufacturer, supplier and exporter in China. We are supplying copper alloy tubes to various industries around the world.

Our copper alloy tube is widely used in the surface of condenser, heat exchanger, and evaporators. They offer high strength, excellent corrosion resistance, and good creep resistance at elevated temperatures.

We are glad to supply your needs whatever the sizes, shapes, dimensions you want for copper alloy tubes. YUHONG will help you with all your tubes necessities. Contact one of our experts today to find out how we can meet your tubing needs.

DIN17660 CuZn20Al2 F39 Chemical Composition

Chemical Composition
Elements	Composition, %
Cu, incl. Ag	76.0-79.0
Sn	–
Al	1.8-2.5
Ni, incl. Co	–
Pb	0.07 max
Fe	0.06 max
Zn	Balance
Mn	0.02-0.06

Equivalent Material

Material Designation	Corresponding Material Symbol
Material Designation	GB/T8890	ASTM B111	BS2871	JIS H3300	DIN1785
Aluminums Brass	HAL77-2	C68700	CZ110	C6870	CuZn20Al2

Packing

Tensile Requirements

Grade	Temper Designation		Tensile Strength	Yield Strength
Grade	Standard	Former	Min. ksi	Min. ksi
CuZn20Al2	O61	Annealed	50	18

DIN17660 CuZn20Al2 F39 Mechanical Properties

Grade	Temper Designation		Annealing temperature, °C	Tensile Strength, min		Yield Strength, min		HV
	Code	Name	Annealing temperature, °C	ksi	Mpa	ksi	Mpa	HV
CuZn20Al2	O61	Annealed	above 650	50	345	18	125	150

Nondestructive Testing

Each tube shall be subjected to the eddy-current test in Eddy-Current Test.
Tubes may be tested in the final drawn, annealed, or heat-treated temper or in the drawn temper before the final anneal or heat treatment unless otherwise agreed upon by the supplier and the purchaser. The purchaser may specify either of the tests in Hydrostatic Test or Pneumatic Test as an alternative to the eddy-current test.

Eddy-Current Test—Each tube shall be passed through an eddy-current testing unit adjusted to provide information on the suitability of the tube for the intended application. Testing shall follow the procedures of Practice E243.

Hydrostatic Test—Each tube shall stand, without showing evidence of leakage, an internal hydrostatic pressure sufficient to subject the material to a fiber stress of 7000 psi [48 MPa] as determined by the following equation for thin hollow cylinders under tension. The tube need not be tested at a hydrostatic pressure of over 1000 psi [7.0 MPa] unless so specified.

P = hydrostatic pressure, psig [MPa];
t = thickness of tube wall, in. [mm];
D = outside diameter of the tube, in. [mm]; and
S = allowable stress of the material, psi [MPa].

Applications

-Heat exchanger and evaporators
-Distiller tubing
-Condenser

-Gland Steam Condensers

-Steam Ejector

-Turbine Oil Coolers