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ASTM B395/B395M-08

ASTM B395/B395M-08

Standard Specification for U-Bend Seamless Copper and Copper Alloy Heat Exchanger and Condenser Tubes

2013-11-26 /Historical
Superseeded by:

This specification establishes the requirements for condenser, evaporator, and heat exchanger U-bends that are manufactured from seamless copper and copper alloy tube. The material of manufacture shall be of such quality and purity that the finished product shall have the properties and characteristics specified. The material shall conform to the chemical composition requirements specified. Tensile test, expansion test, flattening test, mercurous nitrate test or ammonia vapor test, nondestructive examination, hydrostatic test, and pneumatic test shall be made to conform to the requirements specified.

Significance and Use:

For purpose of determining compliance with the specified limits for requirements of the properties listed in the following table, an observed value or a calculated value shall be rounded as indicated in accordance with the rounding method of Practice E 29.

Rounded Unit for Observed or
Calculated Value
Chemical composition nearest unit in the last
right-hand place of figures
Tensile strength nearest ksi [nearest 5 MPa]
Elongation nearest 1 %
Expansion nearest 1 %
Grain size nearest multiple of 0.005 mm


1.1 This specification establishes the requirements for condenser, evaporator, and heat exchanger U-bend tubes that are manufactured from seamless copper and copper alloy tube.

1.2 The following safety hazard caveat pertains only to the test methods described in this specification.

1.2.1 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.

1.3 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.4 This specification is applicable to product 2 in. [50 mm] or less, inclusive, in diameter.

1.5 The product shall be produced from one of the following coppers or copper alloys, as specified in the ordering information:

Copper or
Copper AlloyPreviously Used
UNS No.Designation Type of Metal
C10200 OFAoxygen-free without residual deoxidants
C10300 ...oxygen-free, extra low phosphorus
C10800 ...oxygen-free, low phosphorus
C12000 DLPAphosphorized, low residual phosphorus
C12200 DHPAphosphorized, high residual phosphorus
C14200 DPAAphosphorized, arsenical
C19200 ...phosphorized, 1 % iron
C23000 brass
C44300 Type Badmiralty metal
C44400 Type Cadmiralty metal
C44500 Type Dadmiralty metal
C60800 ...aluminum bronze
C68700 Type Baluminum brass
C70400 ...95-5 copper-nickel
C70600 ...90-10 copper-nickel
C70620 ...90-10 copper-nickel-
(modified for welding)
C71000 ...80-20 copper-nickel
C71500 ...70-30 copper-nickel
C71520 ...70-30 copper-nickel-
(modified for welding)
C72200 ...copper-nickel

A Designations listed in Classification B 224.

condenser tube; copper; copper alloy; dual-gage; evaporator; heat exchanger; U-bend tube; C10200; C10300; C10800; C12000; C12200; C14200; C19200; C23000; C44300; C44400; C44500; C60800; C68700; C70400; C70600; C70620; C71000; C71500; C71520; C72200; Aluminum bronzes--specifications; Brass pipe/tube--specifications; Bronze pipe/tube--specifications; Condenser and heat exchanger systems--copper/copper alloy; Seamless Cu/Cu alloy tube--specifications; UNS C10200--tube (for condensers/heat exchangers); UNS C10300--tube (for condensers/heat exchangers); UNS C10800--tube (for condensers/heat exchangers); UNS C12000--tube (for condensers/heat exchangers); UNS C12200--tube (for condensers/heat exchangers); UNS C14200--tube (for condensers/heat exchangers); UNS C70400 (copper-nickel, 5 %); UNS C19200--tube (seamless) for condensers/heat exchangers; UNS C23000--pipe/tube (seamless/welded); UNS C44300 (admiralty, arsenical)--tube; UNS C44400 (admiralty, antimonial (Cu-Zn-Sn)); UNS C44500 (admiralty, phosphorized (Cu-Zn-Sn))--tube; UNS C60800 (aluminum bronze); UNS C70600 (Cu-Ni)--tube (for condensers/heat exchangers); UNS C68700 (aluminum brass, aresenical); UNS C71000--tube (for condensers/heat exchangers); UNS C71500--tube (for condensers/heat exchangers); UNS C72200 (copper nickel)--tube
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