ASTM B111 C44300 Seamless Admiralty Brass Tube For Heat Exchanger
ASTM B111 This specification establishes requirements for seamless tube and ferrule stock of copper and various copper alloys up to 31 ⁄ 8 in. (80 mm), inclusive, in diameter, for use in surface condensers, evaporators, and heat exchangers.
YuHong Group produce copper nickel tubes. This page talked about C44300 tube. It is also known as admiralty brass tube, offers several advantages:
C44300 copper tube has good resistance to corrosion, making it suitable for use in various environments, including seawater and marine applications.
With high thermal conductivity,copper has excellent thermal conductivity, and C44300 copper tube is no exception. This property allows for efficient heat transfer in applications such as heat exchangers and HVAC systems.
C44300 copper tube can be easily formed and shaped, making it convenient for various fabrication processes like bending, flaring, and soldering.And it has a long lifespan due to its resistance to corrosion and mechanical strength.
Low risk of biofouling -the composition of C44300 copper tube discourages the growth of marine organisms, reducing the risk of biofouling, which is particularly useful in marine and offshore applications.
Specifications
| Dimensions | ASTM B111 C71500 Tube |
| OD Diameter | Required by client |
| W.T. | Generally BWG25-BWG10, 0.508-3.4,required by client |
| Testing | Flattening Test / Expansion Test / Grain Size / Tension / Nondestructive Test, etc |
| Length | Required Length ( Mainly 6meter ) |
Chemical Composition %
| Grade | CopperA | Tin | Lead | Zinc | Arsenic | Iron |
| UNS C44300 | 70-73 | 0.9-1.2 | 0.07 | remainder | 0.02-0.06 | 0.06max |
A Copper (including silver).
Tubes of Copper Alloy UNS Nos. C23000, C28000, C44300, C44400, C44500, C60800, C61300, C61400, C68700, and C71000 shall be furnished in the annealed (O61) temper unless otherwise specified on the purchase order.
Tensile Requirements, Inch-Pound Values Of C71500
| Grade | Temper Designation | Tensile Strength min ksiA /MPa | Yield StrengthB min ksiA /MPa |
| Standard | Former |
| C44300 | O61 | Annealed | 45 / 310 | 15 / 105 |
| Expansion of Tube O.D., in Percent of Original O.D.: 20% |
| A ksi = 1000 psi |
| B At 0.5% extension under load |
Annealed-temper or thermally stress-relieved tubes shall be clean and smooth but may have a superficial, dull iridescent film on both the inside and the outside surface. Drawn-temper tubes shall be clean and smooth, but may have a superficial film of drawing lubricant on the surfaces.
Applications Industry
Chemical / Petrochemical Plan
Heat Exchangers and HVAC Systems
Offshore Oil and Gas Platforms and Processing
Sea Water Equipment and System Design
Pulp and Paper Industry
Power Generation, etc
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