What is C12200 DHP Copper?
GNEE maintains an extensive inventory of C12200 DHP copper, available in various forms including sheets, plates, tubes, and fittings. C122 is a commercially pure copper that has undergone phosphorus deoxidation, thereby retaining a relatively high residual phosphorus content. Copper Alloy 122 is resistant to hydrogen embrittlement; however, due to its elevated phosphorus content, it exhibits relatively lower electrical conductivity.
GNEE is equipped with bar saws, shears, precision plate saws, and waterjet cutting systems to process materials precisely according to your specific specifications. We invite you to contact our experts today to discover how we can assist you in meeting all your copper material requirements.
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Applications
C12200 copper tubes are commonly used in:
Industrial heat exchangers, condensers, and evaporators
HVAC systems and refrigeration units
Water heaters and solar thermal panels
Steam-to-water and steam-to-air heat transfer systems
General piping and fluid distribution in corrosion-sensitive installations
Properties and metrics
What Are the Common Mistakes When Buying C12200 Copper?
Specifying the Wrong Temper
Soft temper and hard temper are not interchangeable. If you order soft temper for a commercial piping system that requires straight, rigid runs, your crew will spend hours straightening coils instead of installing tube. If you order hard temper for a radiant heating system that needs to bend around obstacles, you will end up with kinked tube and wasted material.
Always confirm the temper before placing an order. If you are unsure which temper your application requires, ask. A good supplier can walk you through the options.
Overlooking Cleanliness Requirements
For refrigeration and medical gas applications, cleanliness is critical. ACR tube is supplied with end caps to keep the interior free of debris. Medical gas tube is cleaned to a specific standard and packaged to maintain that cleanliness.
Standard plumbing tube is not held to the same cleanliness standards. Using it in a sealed refrigerant system or a medical gas line can lead to contamination, failed inspections, and expensive rework.
Ignoring Wall Thickness
Type K, Type L, and Type M all refer to wall thickness. Type K is the heaviest, used for underground and high-pressure applications. Type L is the standard for most commercial plumbing. Type M is the lightest, typically used in residential applications with lower pressure requirements.
Using the wrong wall thickness can result in a system that fails pressure testing or does not meet code requirements. Always verify the wall thickness required by your specifications.
How Does C12200 Compare to Other Copper Grades for Sourcing?
| Alloy | Common Name | Key Features | Typical Applications |
|---|---|---|---|
| C12200 | DHP Copper | Deoxidized, excellent brazeability, corrosion resistant | Plumbing, HVAC, refrigeration, industrial piping |
| C11000 | ETP Copper | High electrical conductivity, contains oxygen | Electrical bus bars, transformers, grounding |
| C10200 | OFE Copper | Very high conductivity, oxygen-free, expensive | High-vacuum systems, electronics, specialty |
| C23000 | Red Brass | Lower cost, good machinability | Fittings, valves, decorative components |
FAQ
What is a DHP copper tube?
DHP copper tube (C12200) is a deoxidized, high-phosphorus copper alloy commonly used in plumbing, HVAC, and heat exchangers. It offers excellent thermal conductivity, corrosion resistance, and weldability.
What is the grade of DHP copper?
The standard grade of DHP copper is C12200 under the UNS designation. It contains 99.9% copper and small amounts of phosphorus to improve its weldability and corrosion resistance.
What is the difference between C11000 and C12200?
C11000 (electrolytic tough pitch copper) has higher conductivity but is less suitable for welding. C12200 (DHP copper) has slightly lower conductivity but better corrosion resistance and is ideal for brazing and welding applications.
What is the typical lead time for C12200 DHP copper?
Lead times vary depending on the size, temper, and quantity. Standard sizes in Type L and Type M are typically in stock and can ship within a few days. Less common sizes, heavy-wall pipe, or large quantities may require longer lead times. It is always worth confirming availability before placing an order.
Do you offer fabrication services for C12200?
Yes. We provide custom fabrication for C12200 DHP copper, including bending, coiling, cutting, and assembly of manifolds, headers, and custom components. If you have a project that requires fabricated copper assemblies, reach out with your specifications and we can provide a quote.
How should C12200 copper tube be stored on site?
Store copper tube off the ground on pallets or racks. Keep it covered and protected from direct contact with standing water to prevent external corrosion. For ACR and medical gas tube, keep end caps in place until the tube is ready to be installed to maintain internal cleanliness.
Our product range
| Product Category | Key Specifications | Common Applications |
|---|---|---|
| Copper Tubes | Outer Diameter: 3–300 mm Wall Thickness: 0.5–10 mm Length: Customized Standards: ASTM B280, EN 1057, JIS H3300 |
Air conditioning, refrigeration, heat exchangers, plumbing, industrial fluid transfer |
| Copper Sheets & Plates | Thickness: 0.5–100 mm Width: up to 3000 mm Length: up to 6000 mm Standards: ASTM B152, EN 1652, GB/T 2040 |
Architectural roofing, busbars, transformer components, industrial panels, heat exchangers |
| Copper Rods & Bars | Diameter: 6–300 mm (round) Cross-section: square, hexagonal, flat Standards: ASTM B124, EN 12163, GB/T 4423 |
Electrical connectors, machining parts, switchgear, fasteners, valve stems |
| Copper Wires | Diameter: 0.1–12 mm Form: bare, tinned, stranded Standards: ASTM B3, EN 13601, IEC 60228 |
Electrical wiring, cables, grounding, automotive harnesses, transformer windings |
Our factory
Our factory is equipped with a comprehensive range of advanced production facilities dedicated to the copper processing industry. The production line includes state-of-the-art extrusion presses, precision rolling mills, high-speed drawing machines, continuous casting lines, and automated annealing furnaces, enabling us to manufacture a full spectrum of copper products-tubes, sheets, plates, rods, bars, wires, and strips-with exceptional dimensional accuracy and consistent mechanical properties. To ensure stable output and supply reliability, we operate with an annual production capacity exceeding 80000 tons and maintain a large-scale inventory system that supports just-in-time delivery. Complementing our manufacturing capabilities is a dedicated quality control center equipped with spectrometers, universal testing machines, and hardness testers, ensuring every batch meets international standards such as ASTM, EN, and GB/T. This vertically integrated production setup allows us to control quality at every stage, from raw material selection to final packaging, and to offer flexible customization in dimensions, temper, and surface finishes. With decades of technical expertise and a strong focus on continuous process improvement, we stand as a reliable, large-scale supplier serving clients across global markets.
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