Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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Precision Brass Round Tube Copper Nickel Alloy Seamless Copper Tube B111 C44300 C70600 C71500 C12200 for Refrigeration Air Cooler
Yuhong Group has more than 34 years supply boiler tube , heat exchanger tube , Condenser Tube , Cooling Tube, Material cover : Stainless Steel , Duplex Steel , Super Duplex Steel , Nickel base alloy Steel (Hastelloy, Monel , Inconel , Incoloy), Copper Alloy , Cr-Mo alloy Steel , our boiler tube and heat exchanger tube already export more than 65 countries, and give our best service for more than 1000 clients. Yuhong Brand already stand: High Quality , High Efficiency , and Excellent quality !
C44300 is a type of copper alloy that is commonly referred to as "Admiralty Brass." It is known for its excellent corrosion resistance, high thermal conductivity, and good mechanical properties. C44300 tubes, specifically, are tubes made from this alloy. Here are some key points about C44300 tubes:
When considering the use of C44300 tubes, it is important to consult with engineers, manufacturers, or industry professionals to determine the most suitable tube size, thickness, and design for your specific application requirements. They can provide guidance on material compatibility, installation techniques, and ensure optimal performance of the heat transfer system.
C44300 Chemical Composition
| Elements | Composition, % |
| Cu, incl. Ag | 70.0-73.0 |
| Sn | 0.9-1.2 |
| Al | – |
| Ni, incl. Co | |
| Pb | 0.06 max |
| Fe | 0.07 max |
| Zn | Balance |
| Mn | – |
| As | 0.02-0.06 |
| Sb | – |
| P | – |
| Cr | – |
| Other named elements | – |
C44300 Mechanical Properties
| Properties | Measurement |
| Yield strength | 105 MPa |
| Melting point | 899 ~ 938 °C |
| Tensile strength | 310 MPa |
| Thermal conductivity | 109 W/m-K @ 20.0 °C |
| Density | 8.53 g/cc |
| Heat capacity | 0.09 cal/g-°C @ 20ºC |
| CTE linear strength | 20.2 10-6/°C @ 20.0 – 300 °C |
C44300 Equivalent material
| Standard | BS 2871 PART3 | ASTM B111 | DIN 1785 | NFA 51102 | JIS H3300 | IS 1545 |
| Symbol | CZ 111 | C 44300 | CuZn28Sn1 | CuZn29Sn1 | C 4430 | CuZn29Sn1As |
| Cu | 70.0-73.0 | 70.0-73.0 | 70.0-72.5 | 70.0-73.0 | 70.0-73.0 | 70.0-73.0 |
| Sn | 1.0-1.5 | 0.9-1.2 | 0.9-1.3 | 0.9-1.2 | 0.9-1.2 | 1.0-1.5 |
| Pb | 0.07 | 0.07 | 0.07 | 0.07 | 0.07 | 0.07 |
| Ni | – | – | 0.1 | – | – | – |
| Fe | 0.06 | 0.06 | 0.07 | 0.06 | 0.06 | 0.06 |
| Zn | REM’DER | REM’DER | REM’DER | REM’DER | REM’DER | REM’DER |
| As | 0.02-0.06 | 0.02-0.06 | 0.02-0.035 | 0.02-0.06 | 0.02-0.06 | 0.02-0.06 |
| P | – | – | 0.01 | – | – | – |
| Total Impurities Max. | ||||||
| 0.03 | – | 0.1 | 0.3 | – | 0.3 | |
| Condition | M | 61 | F36 | – | – | O |
| TA | – | F32 | – | O | TA | |
| O | – | – | – | – | D | |
| Yield Strength N/MM2 | – | – | 140-220 | – | – | – |
| – | 105 | 100-170 | – | – | – | |
| Tensile N/MM2 Minimum | – | 310 | 360 | – | – | 375 Mpa Max. |
| – | – | 320 | – | 314Min. | 340 Mpa Min. | |
| – | – | – | – | – | 385 Mpa Min. | |
| Elongation Percent (%) Minimum | – | – | 45Min. | – | -. | – |
| – | – | 55Min. | – | 30 Min. | – | |
| Hardness HV5 – | 150Min | – | – | – | – | 80 Max. |
| 85-105 | – | – | 80-120 | – | 80-105 | |
| 75Max. | – | – | – | – | 130 Min. | |
| Grain Size mm (75X) | 0.05Max. | 0.010-0.045 | – | 0.010-0.045 | 0.010-0.045 | 0.010-0.04 |
Advantage of copper alloy tubes:
Applications:
Heat Exchangers
Condensers
Evaporators
Oil Coolers
Marine Applications
HVAC Systems
Power Generation
