ASTM B111 C70600 seamless tube is a copper-nickel alloy seamless tube that conforms to the American Society for Testing and Materials (ASTM) standard. It is primarily used in equipment such as surface condensers, evaporators, and heat exchangers, and offers excellent corrosion resistance and good physical properties.
Standard Overview
Standard Number: ASTM B111/B111M
Issuing Agency: American Society for Testing and Materials (ASTM)
Scope: This standard specifies requirements for copper and copper alloy seamless tubes and ferrules for surface condensers, evaporators, and heat exchangers, with a maximum diameter not exceeding 3 1/8 inches (80 mm).
Primary Target: C70600 alloy tube, as a type of copper-nickel alloy fitting, strictly complies with this standard.
Material Composition
Main Components:
Copper (Cu): Approximately 90%
Nickel (Ni): Approximately 10%
Other Elements: Contains small amounts of iron (Fe) and manganese (Mn), with specific contents to comply with the standard. Impurity Control: Lead (Pb) content ≤ 0.05%, zinc (Zn) content ≤ 1.0% to ensure corrosion resistance and other physical properties of the fittings.
Performance Characteristics
Corrosion Resistance:
C70600 metal pipes offer excellent corrosion resistance against clean or slightly contaminated seawater and bay water.
They are widely used in seawater-using heat exchangers in power plants, desalination plants, petrochemical plants, and other applications.
Physical Properties:
Tensile Strength: ≥ 275 MPa in the annealed state, ≥ 310 MPa in the light-drawn state.
Elongation: ≥ 28% in the annealed state, ≥ 25% in the light-drawn state.
Density: 8.94 g/cm³.
Processing Properties:
C70600 white copper pipes offer excellent cold and hot workability, making them easy to manufacture and process.
Applications
Seawater equipment: such as marine condensers and desalination evaporation tubes.
Industrial cooling systems: such as central air conditioning condensers and petrochemical chillers.
Power plant equipment: such as power plant steam turbine condensers.
Manufacturing and Quality Control
Manufacturing Process: From raw material selection to finished product manufacturing, the entire process must strictly adhere to ASTM B111/B111M pipe standards to ensure the quality and performance of pipe fittings.
Quality Control:
Production Process Inspection: Quality inspections are conducted at every stage of the production process to ensure compliance with standard requirements.
Finished Product Inspection: Finished products undergo rigorous inspections, including dimensions, appearance, and performance.
why choose us
Professional copper pipe supplier
As a professional enterprise dedicated to global copper product trade since 2008, GNEE Metal Group deeply recognizes the quality and responsibility embodied in the ASTM B111 standard. This standard not only specifies chemical composition and mechanical properties but also represents a comprehensive quality commitment spanning manufacturing processes to testing and verification. GNEE solemnly assures global customers that every ASTM B111-standard condenser tube and copper alloy tubing we supply will strictly adhere to its requirements for seamless manufacturing, annealing treatment, eddy current testing, and various mechanical performance tests.
Contact us today for a quotation：sales@gneesteel.com
