ASTM B111 C70600 Copper Nickel Tube For Condenser Heat Exchanger

ASTM B111 C70600 Copper Nickel Tube for Condenser, Heat Exchanger Application
 

ASTM B111/B111M is the main implementation standard for C70600 white copper tube, especially the ASTM B111/B111M-2018 version. This standard specifies the manufacturing process, material selection, quality control and other aspects of white copper seamless tube in detail, ensuring the reliability and stability of the product. At the same time, the standard also emphasizes the corrosion resistance of the product, and evaluates the corrosion resistance of seamless tubes in different environments through a series of strict test methods.

Chemical composition:

ASTM B111 C70600 copper alloy tube is mainly composed of copper, nickel, iron and manganese. Among them, the nickel content is about 9.0%-11.0%, the iron content is between 1.0%-1.8%, the manganese content does not exceed 1.0%, the zinc content does not exceed 1.0%, and the lead content does not exceed 0.05%. Other elements such as phosphorus and carbon also have strict content limits.

ASTM B111 C70600 Tubing Chemical Composition

Mechanical properties:​

• Tensile strength: The tensile strength of C70600 alloy is usually between 275MPa and 550MPa, depending on its heat treatment state and processing method. Higher tensile strength means that the alloy can resist breaking at a higher maximum stress when subjected to tensile force, so it is suitable for environments with high pressure.
• Yield strength: Yield strength is the maximum stress that a material can withstand before plastic deformation occurs. The yield strength of C70600 alloy is usually between 105MPa and 350MPa, which is also affected by heat treatment and processing methods. This property ensures the stability of the material when subjected to stress.
• Elongation: The elongation of C70600 alloy is generally between 20% and 40% (some say about 30%), showing good plasticity. This means that the alloy can undergo large plastic deformation without breaking when subjected to external force, and is suitable for cold working and shape change.
• Hardness: The Vickers hardness of C70600 alloy is usually between 160HV and 210HV, indicating that it has good wear resistance and scratch resistance. Under the same conditions, the Brinell hardness of C70600 alloy is about 80HB to 150HB (some say about 150HB), which ensures its long-term stability in a strong wear environment.

ASTM B111 C70600 Tensile Requirements

 
Application:
 

• Marine engineering: C70600 alloy has excellent corrosion resistance in seawater environment and is suitable for manufacturing key components of seawater desalination equipment. It is also widely used in ship components such as pipelines, cooling systems, seawater pumps, etc. These components need to operate in seawater environment for a long time. The seawater corrosion resistance of C70600 alloy ensures its long-term stability and reliability.
• Petroleum industry: Reactors, heat exchangers, evaporators and other equipment need to withstand high temperature, high pressure and highly corrosive media in the petrochemical production process. The excellent properties of C70600 alloy make it an ideal material for manufacturing these equipment; in corrosive media and high temperature and high pressure environments, C70600 alloy can be widely used in products such as pipelines, valves and pump bodies, relying on stable performance to ensure the normal operation of petrochemical equipment.
• Aerospace: Aircraft engine parts such as turbine blades and combustion chambers need to operate in extreme high temperature and high pressure environments. The high temperature strength and corrosion resistance of C70600 alloy make it suitable for such applications. At the same time, the light weight, high strength and good corrosion resistance of C70600 alloy make it an ideal material for manufacturing satellite components.
• Food processing field: Such as brewing equipment, milk heaters, juice blenders and ice makers, the corrosion resistance and hygienic properties of C70600 alloy meet food safety and hygiene requirements.