C12000 Water Supply Pipe
Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of c12000 water supply pipe in China, also supports customized service. Welcome to buy discount c12000 water supply pipe for sale here from our factory. Quality products and reasonable price are available.
What is a C12000 water supply pipe?
A C12000 water supply pipe is a high-performance, seamless copper tube specifically manufactured for potable water, heating, and gas distribution systems, made from phosphorus-deoxidized copper with low residual phosphorus.
C12000 Material & Standard
Material: C12000 is the ASTM (American) designation for a phosphorus-deoxidized copper with a low phosphorus content (0.004%–0.012%). It is the direct equivalent of TP1 in Chinese (GB) standards.
Primary Standard: It is most commonly produced and supplied in accordance with ASTM B88 - Standard Specification for Seamless Copper Water Tube.
Key Feature: The low phosphorus content minimizes the reduction in electrical and thermal conductivity, making C12000 slightly superior in these aspects compared to the more common C12200 (TP2).
C12000 Copper Tube for Water System
| Property Category | Parameter | Value Range | Test Standard / Notes |
|---|---|---|---|
| Chemical Composition (wt%) | Copper (Cu) + Silver (Ag) | ≥ 99.90% | ASTM B152, oxygen-free, low-phosphorus copper |
| Phosphorus (P) | 0.015% – 0.040% | Critical for deoxidation; eliminates hydrogen embrittlement | |
| Lead (Pb) | ≤ 0.005% | Controlled to prevent hot shortness | |
| Oxygen (O) | ≤ 0.005% | Low-oxygen design ensures high-temperature stability | |
| Iron (Fe) | ≤ 0.05% | - | |
| Zinc (Zn) | ≤ 0.03% | - | |
| Sulfur (S) | ≤ 0.005% | - | |
| Total Impurities | ≤ 0.10% | - | |
| Physical Properties | Thermal Conductivity | 380 – 400 W/(m·K) | Near-pure copper performance; optimal for heat exchange |
| Electrical Conductivity | ≥ 98.0% IACS | International Annealed Copper Standard | |
| Density | ≈ 8.94 g/cm³ | Based on pure copper reference | |
| Melting Point | ≈ 1083 °C | - | |
| Softening Temperature | ≈ 1500 °C | Far exceeds typical evaporator operating temperatures (<200 °C) | |
| Mechanical Properties (Cold Worked) | Tensile Strength (σb) | 220 – 360 MPa | Varies with temper condition (O to H04) |
| Yield Strength (σs) | 150 – 300 MPa (typical) | Not strictly specified; inferred from temper state | |
| Elongation (δ) | 35% – 45% | O temper: ≥45%; H04 temper: ≥35% | |
| Hardness (HR F Scale) | 54 – 93 | H00 (1/8 hard) to H04 (hard) | |
| Hardness (HR Superficial 30T) | 18 – 62 | Applicable for thin gauges; thickness-dependent |
Why C12000 Used for Water Supply
Excellent Corrosion Resistance: Copper naturally resists corrosion from water and soil, preventing rust and ensuring long-term water quality.
Bacteriostatic Properties: Copper surfaces inhibit the growth of bacteria like Legionella, contributing to safer drinking water.
High Strength & Durability: Withstands high water pressure and temperature fluctuations, suitable for both hot and cold water lines.
Long Service Life: Properly installed copper water pipes can last 50 years or more.
Reliable Joints: Excellent for soldering, brazing, or press-fitting, ensuring leak-free connections.
Common Types & Sizes
In the ASTM B88 standard, copper water tubes are classified by wall thickness:
Type K: Thickest wall. Used for underground service lines and heavy-duty industrial applications.
Type L: Medium wall. The most common type for interior residential and commercial water distribution.
Type M: Thinnest wall. Used for low-pressure residential water lines (where local codes permit).
Typical Sizes (Nominal): 1/2 inch (15 mm), 3/4 inch (22 mm), 1 inch (28 mm), 2 inches (54 mm), etc.
C12000 Comparison with C12200
| Aspect | 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 standard deoxidized grades). | Excellent Brazability & Overall Corrosion Resistance (the industry's standard and most common choice). |
| Key Advantage | Maximized Performance: Delivers the highest heat transfer and electrical efficiency. | Proven Reliability & Economy: Offers the best balance of manufacturing ease, joint integrity, and cost. |
| Typical Applications | • High-efficiency condensers & evaporators • Electrical components & busbars • Applications where thermal performance is critical |
• Standard plumbing & heating tubes (ASTM B88 Types K, L, M) • General ACR tubing (ASTM B280) • Industrial process pipes • Most common water/gas distribution lines |
| Relative Conductivity | ~100% IACS (Highest among common deoxidized coppers) | ~85-90% IACS (Slightly reduced due to higher P content) |
| Brazing & Soldering | Excellent (P acts as an effective deoxidizer). | Excellent to Superior (Higher P content further improves oxide-free surface conditions for exceptional joint quality). |
| Cost & Availability | Generally at a premium; readily available for technical specifications. | The most common and cost-effective grade; widely available in all forms and sizes. |
For most standard piping and refrigeration applications, C12200 (TP2) is the default, proven, and recommended choice. It provides more than sufficient performance with exceptional joinability. C12000 (TP1) is a specialized, performance-optimized material specified when its marginal conductivity advantage translates into measurable system efficiency gains, justifying its specification in high-end or critical thermal/electrical designs.
Copper product packaging
Our packaging system is designed to ensure seamless integration between product delivery status and production line requirements. It adopts a tiered protection philosophy: from sealed ends to prevent impact damage, to corrosion and moisture prevention via stretch film/VCI film, followed by standardized bundling and secure fastening onto ISPM-15 compliant wooden pallets. The entire process adheres to customer specifications and industry standards, ultimately guaranteeing that products reach the client's production line with zero damage, zero corrosion, and zero contamination during storage and transportation.
Our factory
Our factory is a technology-driven enterprise specializing in the research, development, and manufacturing of high-performance copper tubes. With a fully digitalized end-to-end quality control system at its core, we ensure zero-defect delivery from raw materials to finished products. Our high-end copper tubes, such as TP1/C12000, comply with multiple international standards including ASTM, EN, and GB. Thanks to their thermal conductivity close to that of pure copper and exceptional corrosion resistance, they are widely used in the global high-end heat exchanger manufacturing sector. We not only supply standardized products but also provide customers with weld-ready pretreatment, JIT precise delivery, and material customization solutions, helping clients enhance production efficiency and reduce overall costs.
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