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Model NO.: CuZn20Al2
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Technique: Cold Drawn
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Surface Treatment: Varnishing
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Section Shape: Round
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Trademark: C&N
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Specification: ASTM
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Type: Seamless
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Material: Uns C68700 Copper Tube
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Usage: Pipeline Transport, Chemical Industry
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Uns C68700 Copper Tube: Brass Tube
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Transport Package: Wooden Case
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Origin: China
Standards: Â ASTM B 111 C68700 aluminum brass tube,ASME SB111 CuZn20Al2 HEAT EXCHANGER TUBE
Size range: OD 2.0 to 350mm, WT 0.3 to 50mm, Length 18m or as request.
Testing: 100% Eddy Current Testing, 100% hydraulic Testing.
Delivered in straight lengths or as U-bent tubes.
We also supply copper alloy complementary products for heat exchanger applications.
 Finned Tube,Tubesheet, EEMU 146 pipe fitting, EEMU 145 pipe flange etc.
Type of product |
Grade(s)Â |
Technical requirementsÂ
* according to |
| Copper tube/ pipe |
UNSÂ C12200 |
ASTM B111, ASME SB111
ASTM B135, ASME SB135
ASTM B251, ASME SB251
BS EN 1057 or closer |
| Brass tube/pipe |
UNS C23000, UNS C26200 ...
UNS C44300, UNS C68700 ... |
| Cupronickel tube/pipe |
UNS C70600, UNS C71500
UNSÂ C71640 |
| classification |
class |
Chemical Composition(%) |
Related Standards |
| Â |
| Cu |
Zn |
Pb |
Fe |
P |
Sn |
Ni |
Mn |
Al |
As |
other |
KS |
JIS |
ASTM |
BS |
DIN |
| Â |
| Al-brass |
1 |
70.0- |
Rem. |
0.05 |
0.05 |
 |
0.9- |
 |
 |
 |
0.02- |
 |
D5301 |
H3300 |
B111 |
2871 |
1785 |
| 73 |
max. |
max. |
1.2 |
0.06 |
C4430Â |
C4430Â |
C44300Â |
Cz111Â |
CuZn28Sn |
| Â |
 |
 |
 |
 |
 |
 |
 |
 |
 |
| 2 |
76.0- |
Rem. |
0.05 |
0.05 |
 |
 |
 |
 |
1.8- |
0.02- |
Si 0.02 |
C6871 |
C6871 |
C68700 |
Cz110 |
CuZn20Al |
| 79 |
max. |
max. |
2.5 |
0.06 |
-0.5 |
| 3 |
76.0- |
Rem. |
0.05 |
0.05 |
 |
 |
0.20- |
0.20- |
1.8- |
0.02- |
Cr0.10 |
C6872 |
C6872 |
C68700 |
Cz110 |
CuZn20Al |
| 79 |
max. |
max. |
1 |
max. |
2.5 |
0.06 |
max. |
| 4 |
76.0- |
Rem. |
0.05 |
0.05 |
 |
 |
 |
 |
1.8- |
0.02- |
 |
C6870 |
C6870 |
C68700 |
Cz110 |
CuZn20Al |
| 79 |
max. |
max. |
2.5 |
0.06 |