
Product Name: | Copper Nickel Seamless Tubing | UNS No.: | C44300 - BSI No. CZ111 ISO Name CuZn28Sn1 |
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ASME Spec.: | SB111, SB395 | Thickness: | 0.25MM - 4.0MM |
Standard Length: | 6000MM | Temper: | O61 |
Shape: | Round | Package: | Wooden Case |
Application: | Heat Exchanger | ||
High Light: | welded finned tubes,aluminium extruded finned tubes |
CuZn20Al2As Aluminum Brass Tube , ASME SB395 copper heat exchanger Welding CZ110
Aluminum brass tube, C68700, is a copper zinc alloy with additions of aluminum and arsenic. Aluminum brass tube has excellent corrosion and erosion resistance, making it ideal for use in marine environments. It is specified for the manufacture of ships condensers, oil coolers, and other heat exchangers used in aggressive conditions where reliability is essential
The most popular specifications in Europe and America are CZ110, C68700, CW702R and CuZn20Al2As. These Specifications are most commonly used within the Oil and Gas and Shipbuilding industries
Common Specifications:
1. CZ110
2. C68700
3. CW702R
4. CuZn20Al2As
5. BS 2871: Part 2 for General Engineering and Decorative Purposes
6. BS 2871: Part 3 for Heat Exchangers
7. ASTM B187
8. ASTM B152.
Aluminum Brass Tube Applications:
1. Condenser Tube
2. Evaporator Tube
3. Ferrules
4. Heat Exchanger Tube
5. Refrigeration Tube
Aluminum Brass Tube Equivalent Specifications:
SPECIFICATIONS | DESIGNATION | |||||||||
ISO | CuZn20Al2 | |||||||||
Europen | CuZn20Al2 | |||||||||
BS | CZ 110 | |||||||||
JIS | C6870 | |||||||||
Russian | LAMs77-2-0.05 |
Chemical Composition:
Al | As | Cu | Fe | Pb | Zn | |||||
Min/Max | 1.8 - 2.5 | 0.02 - 0.06 | 76.0 - 79.0 | 0.06 | 0.07 | Rem | ||||
Nominals | 2 | 0.04 | 77.5 | - | - | 20.5 |
Specifications:
End Product | Specification | |||||||||
Tube, Condenser | ASME SB111, ASTM B111 | |||||||||
Tube, Finned | ASME SB359, ASTM B359 | |||||||||
Tube, Finned | ASME SB543, ASTM B543 | |||||||||
Tube, U-bend | ASME SB395, ASTM B395 |
Fabrication:
Joining Technique | Suitability | |||||||||
Brazing | Good | |||||||||
Butt Weld | Good | |||||||||
Capacity for Being Cold Worked | Excellent | |||||||||
Capacity for Being Hot Formed | Fair | |||||||||
Coated Metal Arc Welding | Not Recommended | |||||||||
Gas Shielded Arc Welding | Fair | |||||||||
Machinability Rating | 30 | |||||||||
Oxyacetylene Welding | Fair | |||||||||
Seam Weld | Fair | |||||||||
Soldering | Fair | |||||||||
Spot Weld | Good |
Physical Properties:
Product Property | US Customary | Metric | ||||||||
Coefficient of Thermal Expansion | 10.3 ·10-6 per oF (68-572 F) | 18.5 ·10-6 per oC (20-300 C) | ||||||||
Density | 0.301 lb/in3 at 68 F | 8.33 gm/cm3 @ 20 C | ||||||||
Electrical Conductivity | 23 %IACS @ 68 F | 0.135 MegaSiemens/cm @ 20 C | ||||||||
Electrical Resistivity | 45.1 ohms-cmil/ft @ 68 F | 7.5 microhm-cm @ 20 C | ||||||||
Melting Point - Liquidus | 1780 F | 971 C | ||||||||
Melting Point - Solidus | 1710 F | 932 C | ||||||||
Modulas of Elasticity in Tension | 16000 ksi | 110000 MPa | ||||||||
Modulus of Rigidity | 6000 ksi | 41370 MPa | ||||||||
Specific Gravity | 8.33 | 8.33 | ||||||||
Specific Heat Capacity | 0.09 Btu/lb/oF at 68 F | 377.1 J/kg/ · oK at 293 K | ||||||||
Thermal Conductivity | 58.0 Btu · ft/(hr · ft2·oF)at 68F | 100.4 W/m · oK at 20 C |
Copper Alloy Conde Tube,Heat Exchanger Tube

Applicatian:
Engine cooler, power plant condenser, marine heat exchanger, compressor cooler, petrochemical refinery cooler,
motor cooler, seawater desalination evaporator, air conditioning cooling system and other fields.
Good characteristics:
Thermal conductivity, good conductivity, wear resistance, plasticity, good cold bending property,
easy to welding and machining, the seawafer corrosion resistance is strong.
Grade and control table:
Material | GB | ASTM | BS | DIN | Eu | JIS |
Copper Nickel | BFelO-1-1 | C70600 | CN 102 | CuNilOFelMn | CuNilOFelMn | |
C70610 | CN 102 | CuNilOFelMn | CuNilOFelMn | |||
BFe3O-I-I | C71500 | CuNi30Fe | C7150 | |||
CN107 | CuNi30Mnl Fe | CuNi30MnlFe | ||||
C71640 | CN 106 | CuNi30 | CuNi30 | |||
Fe2Mn2 | Fe2Mn2 | |||||
aluminum brass | HA177-2 | C68700 | CZ110 | CuZn20Al2 | CuZn20Al2As | C6870 |
Admiraltybrass | HSn70-I | C41100 | ||||
C44300 | CZ111 | CuZn28Snl | CuZn28Snl As | C4430 | ||
C44500 | ||||||
Copper | T2 | Cl 1000 | C102 | E-Cu58 | Cu-ETP | Cl 100 |
Tpl | Cl 2000 | SW-Cu | Cu-DLP | C1201 | ||
Tp2 | Cl 2200 | C106 | Cu-DHP | Cl 220 |
Supply material according to customer is designatal standard Such as GB GB/T8890,American Standard- 111,American Standard ASTMB111,Britain standard BS2781, European standard EN12451,DIN 1785,JIS and other special standard and so on.
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Copper alloy tubes for petroleum industry

Applicatian:
Oil pump,oil pump,oil transmission pipeline, engine oil, oil, oil field gas station.
Good characteristics:
High hardness,certain intensity, compression strength,corrosion resistance,strong wear resistance.
Grade and control table:
Material | GB | ASTM | BS | DIN | EU | JIS |
Tinbrass | HSn62-1 | C46200 | CZ112 | C4620 | ||
C46420 | C4642 | |||||
Aluminumbrass | HAI66-6-3-2 | C67000 | ||||
Admiraltybrass | HSn70-1 | C44300 | CZ111 | CuZn28Sn1 | CuZn28Snl As | C4430 |
Supply material according to customer is designatal standard Such as GB GB/T8890
American Standard- 111,American Standard ASTMB111,Britain standard BS2781,
European standard EN 12451,DIN1785, JIS and other special standard and so on.
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Copper alloy piping products

Applicatian:
Shipbuilding, marine engineering, marine cage culture,construction and other fields.
Good characteristics:
machinability, corrosion resistanle,adapt to contact with sea water environment; good mechanical properties, bending,
compression strength, excellent electroplate apply for varions demand in architectural engineering field,
adapt to the various needs in the field of construction engineering Ling.
Grade and control table:
Material | GB | ASTM | BS | DIN | Eu | JIS |
Brasstube | H96 | C21000 | CZ125 | CuZn5 | CuZn5 | C2100 |
H90 | C22000 | CZ101 | CuZnIO | CuZnIO | C2200 | |
H85 | C23000 | CZ102 | CuZnl5 | CuZnl5 | C2300 | |
H80 | C24000 | CZ103 | CuZn20 | CuZn20 | C2400 | |
Aluminumbronze | Qal5 | C60600 | CA101 | CuAl5 | CuAI5 | |
C60800 | ||||||
Qal7 | C61000 | CAI 02 | CuAl8 | CuAl8 | ||
Cupronickel | B19 | C71000 | CN104 | CuNi20Fe | C7100 | |
C70600 | CuNilOFe | C7060 | ||||
BZn15-20 | C75400 | NS 105 | CuNil8Zn20 | CuNil8Zn20 | C7521 | |
C75700 | CuNil2Zn24 | CuNil2Zn24 |
Supply material according to customer is designatal standard Such as GB GB/T8890,American
Standard- 111,American Standard ASTMB111,Britain standard BS2781,European standard
EN12451,DIN 1785,JIS and other special standard and so on.
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Copper and copper alloy tube

Applicatian:
Mainly used in precision instrument oil circuit, all kinds of locomotive pipeline, electronic products and other fields.
Good characteristics:
With long length, good toughness, convenient transportation and so on.
Grade and control table:
Material | GB | ASTM | BS | DIN | Eu | JIS |
Brasstube | H70 | C26000 | CZ 106 | CuZn30 | CuZn30 | C2600 |
H70A | C26130 | CZ 126 | CuZn3OAs | |||
H68 | C26200 | CuZn33 | CuZn33 | |||
C26800 | C2680 | |||||
H65 | C27000 | CZ 107 | CuZn36 | CuZn36 | C2700 | |
H63 | C27200 | CZ 108 | CuZn37 | CuZn37 | C2720 | |
C27400 | ||||||
H62 | C28000 | CZ 109 | CuZn40 | CuZn40 | C2800 | |
Aluminum brass | HA177-2 | C68700 | CA 110 | CuZn20Al2 | CuZn20Al2As | C6870 |
Tinbronzetube | Qsn6.5-0.1 | C51900 | CuSn6 | |||
CuSn8 | ||||||
Copper Nickel | BFelO-1-1 | C70600 | CN 102 | CuNilOFelMn | CuNilOFelMn | |
C70610 | CN 102 | CuNilOFelMn | CuNilOFelMn | |||
BFe30-I-1 | C71500 | CuNi30Fe | C7150 |