TP1/C12000 Refrigerator Pancake Coil
Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of tp1/c12000 refrigerator pancake coil in China, also supports customized service. Welcome to buy discount tp1/c12000 refrigerator pancake coil for sale here from our factory. Quality products and reasonable price are available.
What is the TP1/C12000 Pancake Coil?
TP1 phosphorus-deoxidized copper is a low-residual-phosphorus oxygen-free copper material with higher electrical and thermal conductivity compared to TP2. It exhibits excellent welding performance and cold bending properties, with no tendency for "hydrogen embrittlement" when processed or used in reducing atmospheres. The material is primarily used in tube form but can also be processed into plates, strips, bars, or wires. It is widely employed in manufacturing gasoline/gas pipelines, condensers, heat exchangers, drainage pipes, submarine mine tubes, railway carriage components, and other equipment.
Application of TP1/C12000 Copper in Refrigerators
Where It's Used: Forms the core refrigerant circuit-evaporator coils (inside cooling unit), condenser coils (heat dissipation), and all connecting lines.
Why It's Better:
Efficiency: Higher thermal conductivity vs. TP2 means better heat transfer for lower energy use.
Reliability: Excellent for bending and brazing, ensuring leak-proof joints in compact designs.
Durability: More corrosion-resistant and robust than aluminum, preventing pinhole leaks.
Chemical Composition
|
Component |
Cu+Ag |
Pb |
Sb |
Bi |
P |
Fe |
S |
Other Impurities |
|
Content (%) |
≥99.90 |
≤0.005 |
≤0.002 |
≤0.001 |
0.005-0.012 |
≤0.005 |
≤0.005 |
≤0.05 |
Physical Properties
|
Property |
Value |
|
Density |
8.9 g/cm³ |
|
Conductivity |
90-93% IACS |
|
Thermal Conductivity |
350 W/(m·K) |
|
Thermal Expansion Coefficient |
17.7×10⁻⁶/K |
|
Elastic Modulus |
132 GPa |
|
Melting Point |
1083°C |
Mechanical Properties
|
State |
Tensile Strength (MPa) |
Elongation (%) |
Vickers Hardness (HV) |
|
Hard (Y) |
≥275 |
≥5 |
80-110 |
|
Annealed (M) |
≥200 |
≥40 |
50-70 |
GNEE provides the C12000 standard
| Standard Category | Standard Number | Title / Scope | Key Applications / Notes |
|---|---|---|---|
| ASTM (American) | ASTM B280 | Standard Specification for Seamless Copper Tube for Air Conditioning and Refrigeration Field | Core Refrigeration Standard. Mandatory for AC, refrigerator evaporator/condenser coils, and refrigerant lines. Specifies temper, dimensions, cleanliness, and nitrogen purge requirements. |
| ASTM B88 | Standard Specification for Seamless Copper Water Tube | For potable water, heating, and general plumbing systems. C12000 supplied as Type K, L, or M (wall thickness series). | |
| ASTM B75 | Standard Specification for Seamless Copper Tube | General-purpose seamless tube for a wide range of industrial applications (e.g., pressure, instrumentation). | |
| ASTM B68 | Standard Specification for Seamless Copper Tube, Bright Annealed | For applications requiring a clean, bright finish and specific annealed tempers. | |
| EN (European) | EN 12735-1 | Copper and copper alloys – Seamless round copper tubes for air conditioning and refrigeration – Part 1: Tubes for piping systems | The key European standard for ACR tubes. Equivalent to ASTM B280 in scope and requirement level. |
Download ASTM Standard Product Catalog
GNEE provides C12000 size
| Dimension / Parameter | Standard Range | Common Sizes (Examples) |
|---|---|---|
| Outer Diameter (OD) | 3 mm – 300 mm (1/8" – 12") | ACR (ASTM B280): 6.35 mm (1/4"), 9.52 mm (3/8"), 12.7 mm (1/2"), 15.88 mm (5/8"), 19.05 mm (3/4") Water Tube (ASTM B88): 15 mm (1/2"), 22 mm (3/4"), 28 mm (1"), 54 mm (2") |
| Wall Thickness | 0.3 mm – 12.0 mm | ACR: 0.51 mm, 0.71 mm, 0.81 mm, 1.02 mm (corresponding to different OD) Water Tube (Type K/L/M): e.g., 1.02 mm (Type M, 15 mm OD), 1.28 mm (Type L, 15 mm OD) |
| Length | Straight Lengths: 1.0 m – 6.5 m (standard), up to 15 m (custom) Coils: Outer Diameter ≤ 22 mm, Length up to 50 m (or as required) |
Standard straight lengths: 3.0 m, 5.8 m, 6.0 m Coils: Commonly supplied for small-diameter refrigeration and plumbing lines. |
| Temper (Condition) | Soft (Annealed, O60/O61), Half-Hard (H55), Hard (H80) | ACR/Refrigeration: Primarily Soft (Annealed) for bending/flaring. Plumbing: Half-Hard or Hard for structural rigidity. General Purpose: All tempers available. |
C12000 vs C12200
| Characteristic | C12000 (Low-Residual Phosphorus) | C12200 (Standard Phosphorus) |
|---|---|---|
| Equivalent Chinese Grade | TP1 | TP2 |
| Phosphorus (P) Content | Low (0.004% – 0.012%) | Higher (0.015% – 0.040%) |
| Primary Distinction | Superior Electrical & Thermal Conductivity (closest to pure copper among deoxidized grades) | Excellent Brazability & General Corrosion Resistance (the industry workhorse) |
| Key Advantage | Maximized heat transfer efficiency. Ideal for performance-critical heat exchange. | Outstanding for soldering/brazing; reliable and cost-effective for most applications. |
| Typical Applications | • High-efficiency condensers & evaporators • Electrical busbars & components • Premium refrigeration lines |
• Standard plumbing & heating tubes (ASTM B88) • General ACR tubing (ASTM B280) • Industrial process pipes • Most common copper water tubes |
| Conductivity | Approx. 100% IACS (very high) | Approx. 85-90% IACS (slightly lower due to P) |
| Brazing/Soldering | Excellent (P acts as a deoxidizer) | Excellent to Superior (higher P provides excellent oxide-free surfaces) |
| Cost & Availability | Generally slightly higher cost; readily available for technical applications | Most common and cost-effective; widely available in all standard forms |
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FAQ
Q: What is the main difference between TP1 and TP2?
A: TP1 has lower phosphorus content (0.005-0.012% vs. 0.015-0.040% in TP2), offering higher conductivity, but its welding performance is slightly inferior to TP2.
Q: Is TP1 suitable for drinking water pipelines?
A: It must comply with GB/T 18033-2017 standards and pass migration testing for lead, arsenic, and other elements.
Q: How should TP1 be treated after cold working?
A: After cold work hardening, it should be annealed to restore ductility, with a recommended temperature of 500-600°C.
Our factory
Our factory specializes in research and development, production, and quality control, and is equipped with modern precision rolling and drawing production lines. We strictly adhere to international standards including ASTM B280, ASTM B88, and ASTM B75, and professionally produce high-end phosphorus-deoxidized seamless copper tubes such as C12000/TP1 and C12200/TP2, which are suitable for air conditioning and refrigeration, building water systems, and industrial heat exchange applications. Through rigorous processes such as eddy current testing and spectral analysis, we ensure that every copper tube delivers excellent thermal conductivity, sealing performance, and corrosion resistance, providing global customers with reliable products and customized solutions.
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