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Copper Seamless Brass Tube ASTM B111 C44300 Aerospace Oil Application
Overview
ASTM B 111-C44300 is a kind of American Standard tin brass tubing with good mechanical properties, which is used to make heat exchangers and conduits in contact with corrosive liquids, especially in inland thermal power plants are widely used to make high-strength, corrosion-resistant heat exchanger condenser tubing. Trace amounts of arsenic can inhibit dezincification corrosion, further improving the corrosion resistance of the alloy.C44300 has good mechanical properties.
Used in the manufacture of heat exchangers and pipes in contact with corrosive liquids, especially in inland thermal power plants are widely used in the manufacture of high-strength, corrosion-resistant heat exchanger condenser tube. Recent research has proved that the addition of boron, nickel and other trace elements in C44300 can better improve the corrosion resistance of the alloy.C44300 is susceptible to stress corrosion cracking, so the cold processed tube must be low-temperature annealing to eliminate the stress.C44300 is easy to crack in the hot pressing process, the impurity content should be strictly controlled.
The characteristics of ASTM B 111 C44300
High electrical and thermal conductivity
corrosion resistance
moderate strength
easy processing and forming
good resistance to high temperature softening
ASTM B 111 C44300 Chemical Composition
Admiralty Metals, B, C, and D
| As | Cu | Fe | Pb | Sn | Zn | |
|---|---|---|---|---|---|---|
| Min/Max | 0.02 - 0.06 | 70.0 - 73.0 | 0.06 | 0.07 | 0.8 - 1.2 | Rem |
| Nominals | 0.0400 | 71.0000 | - | - | 1.0000 | 28.0000 |
ASTM B 111 C44300 Physical Properties
| Coefficient Of Thermal Expansion | 11.2 10−6Per °F (68-572 F) |
| Density | 0.308 Lb/In3 @ 68 F |
| Electrical Conductivity | 25 %IACS @ 68 F |
| Electrical Resistivity | 41.5 Ohms-Cmil/Ft @ 68 F |
| Melting Point Liquid US | 1720 F |
| Melting Point Solid US | 1650 F |
| Modulas Of Elasticity In Tension | 16000 Ksi |
| Modulas Of Rigidity | 6000 Ksi |
| Specific Gravity | 8.53 |
| Specific Heat Capacity | 0.09 Btu/Lb/°F @ 68 F |
| Thermal Conductivity | 64.0 BTU In/Hr.Ft2.°F @ 68°F |
ASTM B 111 C44300 Mechanical Properties
| PROPERTIES | METRIC | IMPERIAL |
| Tensile Strength | 331-379 MPa | 48000-55000 PSI |
| Yield Strength(Depend on Temper) | 124-152 MPa | 18000-22000 PSI |
| Elongation at Break | 65% | 65% |
| Creep Strength | 0.370 MPa | 53.7 PSI |
ASTM B 111 C44300 Application
heat exchanger
condenser
evaporator
Aerospace
oil
Chemical
