ASTM B111 Copper C10100 heat transfer systems pipes

ASTM B111 Copper C10100 pipes are widely used to create heat transfer systems, including refrigeration and air conditioning units, in which efficient heat exchange is essential for optimal performance. Their ability to withstand high temperatures and pressure variations makes them reliable components in these applications. Copper C10100 pipes play an essential role in fuel and hydraulic systems for automotive and aerospace industries, providing reliable fluid conveyance as well as thermal management. Their lightweight nature and corrosion resistance makes them suitable for such demanding environments.

Outstanding Corrosion Resistance: The high purity of C10100 oxygen-free copper makes it difficult for electrochemical corrosion cells to form on its surface, exhibiting excellent corrosion resistance in atmospheric and freshwater environments. Even in mildly corrosive media, C10100 maintains stable chemical properties and is not prone to corrosion reactions, thus extending the material's service life.

No Hydrogen Embrittlement: In ordinary copper-containing materials, under high-temperature environments, if hydrogen and oxygen are present simultaneously, hydrogen reacts with oxygen to generate water vapor, creating pressure within the material and leading to embrittlement-a phenomenon known as hydrogen embrittlement. C10100 oxygen-free copper, being virtually oxygen-free, fundamentally eliminates the conditions for hydrogen embrittlement, allowing it to maintain excellent mechanical and physical properties even under high-temperature and high-pressure environments.

The chemical composition of C10100 oxygen-free copper varies slightly in different standards:

Core ingredients

Copper (Cu): ≥99.99% (most standards), some standards are ≥99.97% (Cu+Ag) or >99.95%.

Oxygen (O): usually ≤0.001% (10ppm), but some standards are relaxed to ≤0.03% or ≤0.002%.

Impurity elements (maximum content)

Lead (Pb): ≤0.001% (common), occasionally ≤0.003%.

Sulfur (S): ≤0.0018% or ≤0.004%.

Phosphorus (P): ≤0.0003% or ≤0.002%.

Zinc (Zn): ≤0.0001% or ≤0.003%.

Other elements (such as Ca, Hg, Se, Te, Bi, As, etc.): all ≤0.0001%~0.002%.

Compared to other common copper alloys, C10100 oxygen-free copper has significant advantages:

• Compared to ordinary pure copper: While ordinary pure copper also has high electrical and thermal conductivity, its presence of oxygen and other impurities leads to certain performance defects. For example, ordinary pure copper is prone to hydrogen embrittlement at high temperatures, affecting its mechanical properties and service life; C10100 oxygen-free copper, being virtually oxygen-free, completely eliminates the risk of hydrogen embrittlement. Furthermore, ordinary pure copper has relatively poor corrosion resistance and processing performance, failing to meet the stringent material performance requirements of some high-end applications.

• Compared to alloys such as brass and bronze: Although brass (copper-zinc alloy) and bronze (copper-tin alloy, etc.) improve certain properties such as strength and hardness through alloying, the addition of alloying elements inevitably reduces the electrical and thermal conductivity of copper. C10100 oxygen-free copper, with its extremely high purity, maintains the excellent electrical and thermal conductivity of copper, giving it an irreplaceable advantage in fields with extremely high electrical performance requirements. Meanwhile, C10100 oxygen-free copper has better processing performance and corrosion resistance than many copper alloys, making it better suited to various complex processing techniques and usage environments.

GNEE is a leading manufacturer and global supplier of high-quality, precision-engineered copper products. We specialize in providing a comprehensive range of copper solutions tailored to meet the rigorous demands of various industries worldwide, including HVAC/R, automotive, construction, electrical engineering, and industrial machinery.

Our Extensive Product Portfolio:

Copper Tubes & Pipes:
We supply a full spectrum of copper tubes, including Round Pipes, Square Pipes, Welded Pipes, Seamless Pipes, Heat Exchanger Tubes, and Condenser Tubes, designed for superior thermal conductivity and corrosion resistance.

Copper Sheets & Plates:
Our flat-rolled products range from delicate Copper Foils and Thin Sheets to heavy-duty Plates and Circles (Round Plates), ideal for fabrication, roofing, and electrical applications.

Copper Bars & Rods:
We offer Copper Bars in various profiles such as Round Bars, Square Bars, and Hexagonal Bars, providing excellent machinability and strength for precision parts.

Copper Wires & Strips:
Our product line also includes high-conductivity Copper Wires and finely manufactured Copper Strips, essential for electrical components and connectors.

All our products are manufactured to international quality standards, with a strong focus on common American grades and ASTM specifications to ensure global compatibility and performance. Our key materials include:

C11000 (Electrolytic Tough Pitch - ETP Copper)

C10200 (Oxygen-Free Copper - OFC)

C12200 (Phosphorus Deoxidized Copper, DHP)

C10100 (Oxygen-Free Electronic Copper - OFE)

C26000 (Cartridge Brass, 70/30)

C27200 (Brass, 65/35)

C44300, C68700 (Admiralty Brass)

C70600 (Copper Nickel, 90/10)

C71500 (Copper Nickel, 70/30)

These materials conform to critical standards such as ASTM B111 (Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock), ASTM B68 (Seamless Copper Tube), ASTM B75 (Seamless Copper Tube), ASTM B88 (Seamless Copper Water Tube), ASTM B152 (Copper Sheet, Plate, Strip, and Rolled Bar), ASTM B187 (Copper Bus Bar, Rod, and Shapes), and ASTM B601 (Temper Designations for Copper and Copper Alloys).

Get Product Catalog