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Code

Copper

C12200 Copper

Grade Designation

UNS Number: C12200

Common Name: Phosphorus Deoxidized Copper (DHP Copper)

Applicable Standards:

ASTM B152/B152M (Standard Specification for Copper Sheet, Strip, Plate, and Rolled Bar)
ASTM B88 (Standard Specification for Seamless Copper Water Tube)
GB/T 1176-1987 (Standard for Cast Copper Alloys)

Product Features

1. High Purity & Conductivity: Copper content ≥99.85%, conductivity up to 79% IACS, suitable for electrical applications.

2. Excellent Workability: Good cold and hot workability, no "hydrogen embrittlement" tendency, suitable for progressive drawing and welding.

3. Corrosion Resistance: Performs well in reducing atmospheres but is not recommended for high-temperature oxidizing environments.

4. Superior Thermal Conductivity: Thermal conductivity of 340 W/(m·K), ideal for heat exchangers, condenser tubes, and other thermal equipment.

5. Eco-Friendly: Complies with NSF/ANSI/CAN 61 Appendix G, suitable for potable water systems (pH ≥6.5).

C12200 Specifications: Common Product Forms & Dimensions

Form	Thickness/Diameter Range	Width/Length	Typical Applications
Sheet/Strip	0.3–50 mm	Custom (max 2000 mm)	Heat exchangers, architectural components
Bar	Ø1.5–150 mm	Custom lengths	Mechanical parts, connectors
Tube	OD 1/4"–8" (K/L/M/DWV)	Custom lengths	HVAC piping, medical gas lines
Wire	Ø0.5–12 mm	Custom lengths	Electrical wiring, springs

Chemical Composition

Element	Cu	P	Fe	Pb	Total Impurities
Content%	≥99.85	0.013–0.040	≤0.05	≤0.005	≤0.15

*Data sources: ASTM B152, GB/T 1176, etc.*

C12200 Copper Properties

Physical Properties

Property	Value
Density (g/cm³)	8.94
Melting Point (°C)	1083
Conductivity (%IACS)	79%
Thermal Conductivity (W/m·K)	340
Thermal Expansion (10⁻⁶/K)	17.6
Elastic Modulus (GPa)	132

Data compiled from multiple standards and tests.

Mechanical Properties

Condition	Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)	Hardness (HV)
Annealed	215–275	≤140	≥25	55–100
1/4 Hard	240–300	≥180	≥8	65–95
Hard (H04)	≥360	≥320	≥2	≥110

Based on ASTM B152 and industry tests.

Key Advantages

1. High Reliability: Oxygen-free copper matrix reduces oxidation risk, extending service life.

2. Processing Flexibility: Supports cold/hot rolling, welding, and other processes for complex part fabrication.

3. Eco-Compliance: NSF-certified for potable water and medical gas delivery.

4. Cost-Effectiveness: More economical than pure copper while maintaining balanced performance.

Applications

Electrical & Electronics: Wires, connectors, switch components.
Heat Exchange Systems: Condensers, evaporators, HVAC tubing.
Construction & Transportation: Gas pipelines, railway parts, marine equipment.
Industrial Manufacturing: Hydraulic components, wear-resistant parts, precision springs.

Processing Guidelines

1. Welding: Inert gas shielding (TIG/MIG) recommended to prevent high-temperature oxidation.

2. Cold Working: Periodic annealing (500–600°C) required to restore ductility.

3. Surface Treatment: Use non-abrasive cleaners to avoid chemical corrosion.

4. Environmental Limits: Avoid prolonged use in oxidizing atmospheres or high temperatures (>200°C).

Primary Use Cases

Potable Water Systems: NSF-compliant copper tubes for residential/commercial water supply.
Refrigeration Equipment: Air conditioning coils and heat exchangers.
Automotive Manufacturing: Fuel lines, radiator components.
Medical Devices: Medical gas delivery pipelines.

FAQs

Q1: Is C12200 material suitable for potable water systems?

A: Yes, it complies with NSF/ANSI/CAN 61 Appendix G, provided water pH ≥6.5.

Q2: What distinguishes C12200 from TP1 copper?

A: TP1 has lower residual phosphorus (≤0.04%) and slightly better conductivity, but C12200 offers more stable workability.

Q3: How is C12200 recycled?

A: Recyclable via specialized metallurgical processes; phosphorus content requires special handling to avoid environmental contamination.

Reference Standards

Standard No.	Description
ASTM B152/B152M	Standard for Copper Sheet, Strip, Plate, and Rolled Bar.
ASTM B88	Standard for Seamless Copper Water Tube (Types K, L, M).
NSF/ANSI/CAN 61	Drinking Water System Safety Certification.
GB/T 1176-1987	Standard for Chemical Composition and Properties of Cast Copper Alloys.

Note: The above data is based on industry standards and tests. Actual parameters may vary slightly due to manufacturing processes. For critical applications, request material certifications or conduct tests.

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