Arsenical Copper (C14200 / C14300 / CuAs)
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Arsenical Copper (C14200 / C14300 / CuAs) Brochure
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Descriptions
Navkar Metal Syndicate supplies premium Arsenical Copper (CuAs) in grades C14200 and C14300, engineered for superior performance in demanding electrical, marine, and industrial applications. This alloy combines the exceptional conductivity of pure copper with improved softening resistance, corrosion resistance, and mechanical strength — achieved through a small, controlled addition of arsenic (~0.02–0.06%).
Arsenical Copper retains up to 85–90% of pure copper’s electrical conductivity while exhibiting higher resistance to hydrogen embrittlement and stress relaxation, making it ideal for heat exchangers, condensers, boiler tubes, and marine components operating in high-temperature or corrosive environments. Its excellent weldability and formability also make it a preferred choice for industrial busbars, transformer components, and electrical conductors.
Every batch supplied by Navkar Metal Syndicate is chemically tested, dimensionally verified, and accompanied by full Mill Test Certificates (MTCs) for complete traceability. We provide customized supply solutions including rods, tubes, sheets, plates, and bars — cut to length, polished, or machined as per international standards like ASTM B111, B152, and B187.
Arsenical Copper delivers the reliability of copper with added endurance against scaling, corrosion, and softening — making it the trusted choice for marine condensers, distillation units, and electrical applications requiring long-term stability.
Chemical Composition
Arsenical Copper alloys are high-conductivity copper grades strengthened and stabilized by small additions of arsenic (As), which enhances resistance to softening, scaling, and corrosion in high-temperature and marine service. These grades — C14200 and C14300 — maintain excellent ductility and formability while providing superior hydrogen embrittlement resistance.
| Element | C14200 | C14300 |
|---|---|---|
| Copper (Cu) | 99.7% min | 99.5% min |
| Arsenic (As) | 0.02 – 0.06% | 0.02 – 0.06% |
| Phosphorus (P) | 0.002 – 0.015% | 0.002 – 0.015% |
| Other Elements (total) | 0.10% max | 0.10% max |
| Residuals | Balance Copper | Balance Copper |
Both C14200 and C14300 are recognized under ASTM B111, ASTM B152, and ASTM B187 standards, offering a balance of conductivity (≥85% IACS) and enhanced corrosion resistance for marine and industrial systems.
Mechanical, Physical & Fabrication Properties
Arsenical Copper alloys, including C14200 and C14300, retain excellent electrical conductivity and thermal performance while providing improved strength, creep resistance, and stability at elevated temperatures. These alloys are used where standard electrolytic copper (C11000) would soften or corrode under heat or water exposure.
| Property | C14200 | C14300 |
|---|---|---|
| Tensile Strength (Annealed) | 220 – 275 MPa (32 – 40 ksi) | 220 – 275 MPa (32 – 40 ksi) |
| Yield Strength (0.2% Offset) | 60 – 125 MPa (9 – 18 ksi) | 60 – 125 MPa (9 – 18 ksi) |
| Elongation (% in 50 mm) | 40 – 50% | 40 – 50% |
| Hardness (HV) | 50 – 70 | 50 – 70 |
| Electrical Conductivity | 85 – 90% IACS | 85 – 90% IACS |
| Thermal Conductivity | 340 – 370 W/m·K | 340 – 370 W/m·K |
| Density | 8.90 g/cm³ | 8.90 g/cm³ |
| Melting Point | 1080°C (1975°F) | 1080°C (1975°F) |
| Fabrication – Cold Working | Excellent | Excellent |
| Fabrication – Hot Working | Good (700–800°C) | Good (700–800°C) |
| Weldability | Good (resistance & gas welding) | Good (resistance & gas welding) |
| Solderability / Brazing | Excellent | Excellent |
These alloys combine the electrical efficiency of pure copper with the added resilience of arsenic, making them ideal for heat exchanger tubes, marine condensers, distillation plants, and high-temperature electrical systems.
Applications
With higher softening resistance, improved creep strength and excellent corrosion performance in hot/aqueous service, Arsenical Copper grades C14200 and C14300 are selected for heat-transfer duty, seawater contact, and high-temperature electrical systems where electrolytic copper would lose strength.
Thermal & Process Equipment
- Condenser and heat-exchanger tubes & tube sheets (power, petrochemical, HVAC/R)
- Desalination & distillation plants (evaporators, brine heaters, flash chambers)
- Refinery & chemical service coolers handling brackish/industrial waters
- Boiler feedwater heaters, economizers, intercoolers
Marine & Offshore
- Seawater cooling loops, marine condensers and auxiliary shipboard exchangers
- Marine HVAC coils, piping spools, intake screens and strainers
- Harbor/port equipment exposed to saline spray and splash zones
Power Generation
- Thermal & combined-cycle plant condensers and auxiliary coolers
- Nuclear balance-of-plant heat-transfer components (non-nuclear class)
Electrical & Instrumentation
- High-temperature busbars, connectors and terminal pads with enhanced creep resistance
- Commutator segments, current-carrying rings and contact shoes
- Earthing straps and conductive hardware in heated/process areas
General Engineering
- Pump/valve internals, ferrules and ferritic couplings in hot water service
- Fabricated plate/tube assemblies requiring brazing or soldering
- Sugar, brewery and food-process heaters where corrosion control matters
Standards & International Equivalents:
Arsenical Copper alloys conform to a variety of international specifications for wrought and tube products. These standards ensure consistent chemistry, mechanical performance, and corrosion resistance suitable for heat exchanger, electrical, and marine service applications.
| Standard | Specification / Equivalent | Typical Product Form |
|---|---|---|
| UNS | C14200, C14300 | Rod, Bar, Sheet, Plate, Tube |
| ASTM | B111, B152, B187, B224 | Seamless Tube, Sheet, Rod, Bar |
| ASME | SB111, SB152, SB187 | Pressure and Heat Exchanger Tubes |
| BS (British Standard) | BS 2871 Part 3 CZ110 / C142 | Seamless Tubes and Pipes |
| EN / ISO | EN 12451 CuAs / CW021A | Wrought Copper Tube for Heat Exchangers |
| DIN (Germany) | DIN 17664 CuAs / 2.1006 | Sheet, Plate, Strip, Tubes |
| JIS (Japan) | JIS H3300 C1420 / C1430 | Tubes, Sheets, Rods |
| ISO | CuAs (Cu-DHP Equivalent Class) | General Engineering Copper Alloy |
These international designations underline the widespread acceptance of C14200 and C14300 for use in marine condensers, desalination plants, heat exchangers, and high-temperature electrical equipment.
Common Names & International Identifiers
Arsenical Copper alloys are internationally recognized under multiple trade and industrial names. These identifiers ensure easy cross-reference between different national and industrial standards for the same copper–arsenic material family.
| System / Classification | Designation | Description / Notes |
|---|---|---|
| UNS | C14200 / C14300 | Wrought Arsenical Copper (low As content for heat exchanger tubes and marine service) |
| ASTM | B111, B152, B187 | Standard specifications covering tubes, sheets, rods, and bars |
| EN (Europe) | CW021A / CuAs | Arsenical copper for condenser and heat exchanger tubes |
| BS (United Kingdom) | C142 / CuAs | British Standard designation for arsenical copper materials |
| DIN (Germany) | 2.1006 / CuAs | German Werkstoffnummer and material name for arsenical copper |
| ISO | CuAs | General international designation for arsenical copper |
| JIS (Japan) | C1420 / C1430 | Japanese Industrial Standard designation for arsenical copper tube and sheet |
| Common / Trade Names | Arsenical Copper, Arsenic-Bearing Copper, CuAs Alloy | Used generically in marine, heat exchanger, and power applications |
These designations help ensure full compatibility and traceability across global manufacturing standards — enabling Navkar Metal Syndicate to supply certified Arsenical Copper products that meet ASTM, EN, BS, and JIS requirements.
Common Product Forms & Dimensions
CDA C14200 (Deoxidized High Phosphorus, DHP) and C14300 (Cadmium Copper, now less common due to environmental restrictions) are both part of the high-conductivity copper family used for heat exchangers, electrical, and general engineering applications. Their availability and exact dimensions depend on the supplier, manufacturing method, and applicable standards such as ASTM, EN, and BS.
C14200 — Deoxidized High Phosphorus Copper
C14200 is a commercially pure copper alloy deoxidized with phosphorus, offering excellent formability, weldability, and brazing performance. It is widely available in seamless tubes, sheets, plates, rods, and wires for industrial and marine applications.
| Form | Typical Commercial Availability | Common Size Ranges (Illustrative) |
|---|---|---|
| Tube / Pipe | Yes | Outer Diameters: 0.125″ to several inches; Wall Thickness: variable (e.g., 0.065″ typical for hard drawn temper) |
| Flat Products (Strip, Sheet, Plate) | Yes | Thickness: thin foil up to 1″ or more; typical strips: 0.04″ – 0.065″ |
| Rod / Bar | Yes | Diameter/Width: small gauge up to several inches (varies by supplier) |
| Wire | Yes | Multiple gauges available for electrical and general fabrication applications |
C14300 — Cadmium Copper
C14300 is a cadmium-bearing copper alloy (approximately 0.8% Cd) valued for its improved strength and good conductivity. While its industrial use has declined due to cadmium’s toxicity, it remains available in select markets for legacy or specialty electrical applications.
| Form | Typical Commercial Availability | Remarks |
|---|---|---|
| Wire | Yes | Historically the most common form for electrical use (contact wires, conductors) |
| Strip | Yes | Available for electrical, connector, or switchgear applications |
| Rod / Bar | Yes | Produced in limited quantities; sizes similar to C14200 |
Note on Availability: Generic size charts for C14200 and C14300 are not universally standardized across suppliers. Actual size ranges depend on the manufacturer’s product catalog and casting/extrusion method. For precise sizing or custom orders, consult with your metal distributor or contact Navkar Metal Syndicate directly for tailored supply and MTC-backed inventory.
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