C71500 Copper Nickel
Spec Equivalents: ASTM B151, MIL C15726F
The C71500 COPPER NICKEL “70/30” alloy is the corrosion resistant alloy mainly used in salt water environment. The alloy is the combination of nickle, iron and manganese that helps in maintaining good corrosion resistance and is commonly used in valves, and pump components.
Applications:
- Industrial Applications : Pump Impellers, Heat Exchanger Tubes, Evaporator Tubes, Distiller Tubes, Condenser Plates, Refrigerators, Process Equipment, Condenser Components, Ferrules, Welding Backing Rings, Flexible Metal Hose, Weld Wire, Boiler Parts, Condensers, Propeller Sleeves, Heat Exchanger Components
- Marine Applications : Salt Water Flanges, Salt Water Piping, Valve Bodies, Sea Water Service, Fittings, Sea Water Condensers, Salt Water Pipe Fittings, Water Boxes – Salt Water Applications, Pump Bodies and Internal Parts-Sea Water
Specifications
Chemical Composition:
| Cu | Fe | Pb | Mn | Ni | Zn | |
| Min/Max | Rem | 0.40 – 1.0 | 0.05 | 1 | 29.0 – 33.0 | 1 |
| Nominals | 69.5 | 0.5 | – | – | 30 | – |
Specifications
| End Product | Specification |
| Bar | ASTM B122, B151, MILITARY MIL-C-15726, SAE J461, J463 |
| Bolts | ASTM F468 |
| Electrode, Welding | AWS A5.6, MILITARY MIL-E-22200/4 |
| Nuts | ASTM F467 |
| Pipe, Seamless | ASME SB466, ASTM B466 |
| Pipe, Welded | ASTM B608, B467 |
| Plate | ASTM B122, MILITARY MIL-C-15726, SAE J461, J463 |
| Plate, Clad | ASTM B432 |
| Plate, Condenser Tube | ASME SB171, ASTM B171, SAE J463, J461 |
| Rod | ASTM B151, MILITARY MIL-C-15726 |
| Screws | ASTM F468 |
| Sheet | ASTM B122, MILITARY MIL-C-15726, SAE J463, J461 |
| Strip | ASTM B122, MILITARY MIL-C-15726, SAE J461, J463 |
| Studs | ASTM F468 |
| Tube, Condenser | ASME SB111, ASTM B552, B111, MILITARY MIL-T-15005, SAE J463, J461 |
| Tube, Finned | ASME SB359, ASTM B359, MILITARY MIL-T-22214 |
| Tube, Seamless | ASME SB466, ASTM B466, MILITARY MIL-T-16420 |
| Tube, U-Bend | ASME SB395, ASTM B395 |
| Tube, Welded | ASME SB543, ASTM B543 |
| Wire | MILITARY MIL-C-15726 |
Fabrication:
| Joining Technique | Suitability |
| Brazing | Excellent |
| Butt Weld | Excellent |
| Capacity for Being Cold Worked | Good |
| Capacity for Being Hot Formed | Good |
| Coated Metal Arc Welding | Excellent |
| Gas Shielded Arc Welding | Excellent |
| Machinability Rating | 20 |
| Oxyacetylene Welding | Good |
| Seam Weld | Excellent |
| Soldering | Excellent |
| Spot Weld | Excellent |
Physical Properties:
| Product Property | US Customary | Metric |
| Coefficient of Thermal Expansion | 9.0 ·10-6 per oF (68-572 F) | 16.2 ·10-6 per oC (20-300 C) |
| Density | 0.323 lb/in3 at 68 F | 8.94 gm/cm3 @ 20 C |
| Electrical Conductivity | 4 %IACS @ 68 F | 0.027 MegaSiemens/cm @ 20 C |
| Electrical Resistivity | 225.0 ohms-cmil/ft @ 68 F | 37.4 microhm-cm @ 20 C |
| Melting Point – Liquidus | 2260 F | 1238 C |
| Melting Point – Solidus | 2140 F | 1171 C |
| Modulas of Elasticity in Tension | 22000 ksi | 152000 MPa |
| Modulus of Rigidity | 8300 ksi | 57230 MPa |
| Specific Gravity | 8.94 | 8.94 |
| Specific Heat Capacity | 0.09 Btu/lb/oF at 68 F | 377.1 J/kg · oK at 293 K |
| Thermal Conductivity | 17.0 Btu · ft/(hr · ft2·oF)at 68F |
29.4 W/m · oK at 20 C |
Sizes Available:
| HOLLOW RODS | Min Bore Size 20 mm and Max OD 100 mm |
| ROUND RODS | 8mm To 100 mm |
| HEX | 10mm To 60mm |
| SQUARE | 10mm To 60mm |
| FLAT | 10mm Min Thickness and max Width 120mm |
| BILLETS | Up to 200 mm |
| INGOTS | As per Specification |
