ASTM B111 C19200 ( UNS C19200 ) Copper Alloy Tube
ASTM B111 C19200 (UNS C19200) is a copper alloy tube specification commonly used for condenser and heat exchanger applications where improved mechanical strength over pure copper is required. This alloy provides a balanced combination of good thermal conductivity, corrosion resistance, and enhanced strength, making it suitable for demanding industrial cooling and fluid-handling systems.
Key Features
- Higher mechanical strength compared to pure copper
- Good resistance to corrosion in fresh water and industrial environments
- Reliable thermal conductivity for heat transfer equipment
- Excellent formability and machinability
- Smooth internal surface for efficient fluid flow
- Suitable for condenser and heat exchanger service
Equivalent Grades
| Standard | Grade |
|---|---|
| UNS | C19200 |
| ASTM | B111 C19200 |
| EN | Cu Alloy Equivalent |
| JIS | Copper Alloy Equivalent |
Sizes
- Outside Diameter (OD): 6 mm to 159 mm
- Wall Thickness: 0.7 mm to 10 mm
- Length: Random, fixed, or cut-to-length
- Form: Straight lengths
ASTM B111 C19200 Chemical Composition
| Element | Percentage (%) |
|---|---|
| Copper (Cu) | Balance |
| Zinc (Zn) | Minor |
| Iron (Fe) | Minor |
| Others | As specified |
C19200 Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength | 275 – 345 MPa |
| Yield Strength | 120 – 170 MPa |
| Elongation | 20 – 30 % |
| Hardness | ~80 – 100 HV |
UNS C19200 Physical Properties
| Property | Value |
|---|---|
| Density | ~8.9 g/cm³ |
| Melting Range | ~1020 – 1080°C |
| Thermal Conductivity | ~250 W/m·K |
| Electrical Conductivity | ~40 – 50 % IACS |
Type of ASTM B111 C19200 Tubes
- Seamless Copper Alloy Tubes
- Condenser Tubes
- Heat Exchanger Tubes
- Annealed Tubes
- Hard Drawn Tubes
Applications
- Power plant condensers
- Heat exchangers
- Industrial cooling systems
- Oil & gas refineries
- Chemical processing equipment
- Marine and offshore cooling systems
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