Surface Condencers Red Precision Copper Pipes C12000
ASTM B111/B111M
For alloys in which copper is listed as"remainder",copper is the difference between the sum results of all the
elements determined and 100%,When all elements in Table 1 are detemined,the sum of the results shall be
as follows:

Temper:
1.Copper tubes shall be furnisher in the temper designations identified in Tables 2 and 3
2.Drawn tempers H55 and H80
3.Annealed temper O61
4.Drawn and stress-relieved temper HR50
5.Copper tubes for ferrule stock shall be annealed sufficiently to be fully recrystallized.
Chemmical Requirements

Brass Pipe have strong, corrosion resistant properties, and become a modern contractor in all

of commodity house pipes,heating, cooling water piping installation of choice.Widely used for

air-conditioning and refrigeration field service,heat exchange use,connecting tubes,distribution,

fire protection,solar,natural gas,liquefied petroleum gas,vent piping.

Nondestructive Testing

1.Unless nondestructive testing has been waived,Brass tubesshall be subjected to a nondestructive test.T

he manufacturer shall select the nondestructive test that is most suitable for the tube size and the application

2.Eddy-current testing is the standard nondestructivetest,andall tubes of appropriate size shall be eddy-current

tested in accordance with A

3.Tubes that are not of a size suitable for eddy-current test capabilites shall be tested by the hydrostatic test as

described in B ,or by the pneumatic test as described in C

A:Eddy Current Test-Each tube up to 3 8/1 in 【79mm】 in outside diameter shall be subjected to an eddy-current test..

B:Hydrostatic Test -When specified , the tube shall sand,without showing evidence of leakage an internal hydrostatic

pressure to subject the material to a fiber stress of 7000 psi [48MPa],determined by the following equation for thin hollow

cylinders under tension p=2Stl(D-0.8t)

C:Pneumatic Test- - -When specified, the tube shall be subjected to an internal air pressure of 60 psig [400 kPa] minimum

for 5 s without showing evidence of leakage. The test method used shall provide for easy visual detection of any leakage,

such as by immersion of the tube under water or by the pressure differential method. Any evidence of leakage shall be cause

for rejection.

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