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| Customization: | Available |
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| Type: | Round |
| Standard: | AISI, ASTM, DIN, JIS, GB, BS |
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JIS H3300 BS2871 Nickle Alloy Pipe for ACR and Refrigeration C11000/C11300/C11400
1. Product Definition and Application
Product: Seamless ACR Pipe. This denotes a tube manufactured without a welded seam, produced to specific dimensional and cleanliness standards for refrigerant containment.
Material: High-Conductivity, Phosphorus-Deoxidized Copper. The specified grades (C11000, C11300, C11400) are characterized by very high copper content and excellent thermal conductivity.
Primary Application: Air Conditioning and Refrigeration (ACR) Systems. This includes:
Refrigerant lines (suction and liquid lines) in residential and commercial AC units.
Heat exchanger coils (evaporators, condensers).
Refrigeration plant piping.
2. Governing International Standards
The pipe is produced to meet the requirements of two key international standards, which define material, dimensions, and testing.
Table 1: Governing Standards for ACR Pipe
| Standard | Standard Title / Focus | Key Contribution to Specification |
|---|---|---|
| JIS H 3300 | Copper and Copper Alloy Seamless Pipes and Tubes | This Japanese Industrial Standard defines the general requirements for chemical composition, mechanical properties, dimensional tolerances, and testing methods for seamless copper pipes. |
| BS 2871 | Copper and Copper Alloys. Tubes | This British Standard is a comprehensive document with multiple parts. Part 1 is for copper tubes, and it specifies requirements for material, workmanship, dimensions, and testing, making it a globally recognized benchmark for quality. |
3. Material Grades and Their Characteristics
The specified C11xxx series are all high-purity phosphorus-deoxidized coppers, known for their resistance to hydrogen embrittlement ("hydrogene embrittlement") and excellent formability and thermal conductivity.
Table 2: Copper Material Grade Specifications
| Material Grade (Copper) | Common Name / Type | Key Characteristics & Why Used in ACR |
|---|---|---|
| C11000 | Electrolytic Tough Pitch Copper (ETP) | Very high electrical and thermal conductivity. Susceptible to hydrogen embrittlement in reducing atmospheres if not properly brazed. A cost-effective choice for many applications. |
| C11300 | -- | A specific, modified copper grade with properties tailored for enhanced manufacturing consistency and performance. |
| C11400 | -- | Another specific grade, often with slight alloying additions to improve certain characteristics like anneal resistance or strength while maintaining high conductivity. |
Note: For ACR applications, these coppers are valued for their superior ability to be bent, flared, and brazed without cracking, and for their unmatched efficiency in transferring heat.
4. Key Features for ACR and Refrigeration Applications
Pipes conforming to these standards offer distinct advantages for refrigeration systems:
High Internal Cleanliness and Dryness: ACR pipes are manufactured, stored, and shipped under conditions that prevent internal contamination and moisture, which are critical to prevent system failure.
Accurate Dimensional Tolerances: Precise outer diameters and wall thicknesses are crucial for proper fitting into components and ensuring pressure integrity.
Excellent Bendability and Flareability: The soft, annealed temper of ACR pipe allows for easy installation without kinking or cracking, ensuring leak-free, durable joints.
Superior Thermal Conductivity: Maximizes the heat transfer efficiency of the evaporator and condenser coils, leading to higher system performance (COP).
Pressure Tightness: The seamless construction and rigorous testing (e.g., hydrostatic or nondestructive electric tests) mandated by JIS H3300 and BS2871 ensure the pipe can safely contain the system's refrigerant pressure.
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