Product Introduction: Heat Exchanger Seamless Copper Alloy / Brass Tubes (ASTM B111 UNS No: C44300)

1. Chemical Composition
   • Copper (Cu + Ag): 70.0 - 73.0%
   • Zinc (Zn): Balance
   • Tin (Sn): 0.9 - 1.2%
   • Iron (Fe): 0.06% max
   • Lead (Pb): 0.07% max
   • Arsenic (As): 0.02 - 0.06%.
2. Mechanical Properties
   • Tensile Strength: Minimum 310 MPa
   • Yield Strength: Minimum 105 MPa
   • Elongation: Typically 30% in 2 inches.
3. Thermal Conductivity
   • C44300 tubes offer excellent thermal conductivity, making them ideal for efficient heat transfer in heat exchangers and condensers.
4. Corrosion Resistance
   • The alloy provides superior resistance to corrosion in various environments, including seawater, freshwater, and brackish water. This makes it suitable for applications in power plants, oil refineries, and HVAC systems.

• Heat Exchangers and Condensers: Used in power plants, refrigeration systems, and HVAC applications.
• Oil and Gas Industry: Utilized in oil coolers, gas pipelines, and offshore platforms.
• Plumbing Systems: Suitable for potable water, hot water, and chilled water distribution due to its antimicrobial properties.
• Marine Applications: Preferred for shipboard systems due to its resistance to seawater corrosion and biofouling.

• Standard: ASTM B111 / ASME SB111.
• Size Range:
  • Outside Diameter (OD): 6 - 50.8 mm
  • Wall Thickness: 0.4 - 3 mm
  • Length: 6000 - 12000 mm.
• Tests: Chemical analysis, tensile testing, expansion test, flattening test, eddy-current testing, and hydrostatic testing.

• Durability: High mechanical strength and corrosion resistance ensure long-term reliability.
• Efficiency: Excellent thermal conductivity enhances the performance of heat exchange systems.
• Versatility: Suitable for a wide range of industrial applications, including marine, oil & gas, and HVAC.

Torich Interational Limited is a professional manufacturer and exporter of steel pipes materials. It is an international marketing and sales company specialized in steel tubes, which holds the factories of Seamless Steel Tubes with Carbon and Alloy Steel Grade, Welded Precision Steel Tubes，DOM Steel Tubes, Seamless & Welded Stainless Steel Tubes with Nickel and Alloy Steel Grade.

Our steel pipes cover the following ranges:
Seamless Precision Steel Pipes
Welded Precision Steel Pipes, with DOM production
Seamless Heat Exchanger Steel Pipe
Seamless Boiler Steel Pipes
Seamless Structural Steel Pipes
Seamless Mechanical Steel Pipes
Seamless Alloy Steel Tubes & Pipes
Seamless Stainless Steel tubes
Welded Stainless Steel Tubes
Seamless Stainless Steel Tubes & Pipes
Welded Stainless Steel Tubes & Pipes
Seamless Carbon Steel Tubes & Pipes
Nickel Alloy Steel Tubes & Pipes

Steel Grade:
Carbon Steel Grade:
ST35.8, ST37.0, ST44, ST52;
E155, E195, E215, E235, E275, E355;
195GH, P235GH, P265GH, P195TR1, P195TR2, P235TR1, P235TR2, P265TR1, P265TR2;
SAE1010, SAE1020, SAE1026, SAE1035, SAE1045;
Carbon steel tube: SA178, A179, A192, A210, SA213, SA214, etc.

Alloy Steel Grade:
T2, T5, T9, T11, T12, T17, T21, T22, T91,T92, 15Mo3,16Mo3, 13CrMo44;
SAE4130, SAE4140, 40Cr, 40Cr4, 10CrMo910, 12CrMo910, 11CrMo910,
25CrMo4, 35CrMo, 35CrMo4, 42CrMo4, 34CrMo4, 20MnV, 20MnV6,20CrMn;
Carbon steel tube:A179,A192,A210,DIN17175,etc.