The UNS Nickel Silver Brass Bars C77400 is a nickel-silver copper alloy. The alloy is used while making jewellery and ornaments owing to its silvery appearance. The alloy is known for is corrosion resistance and tarnish-free surface.
Applications :
- Architecture : Architecture: Elevator Trim, Handrails, Thresholds
Chemical Composition:
| Cu | Pb | Zn | Ni | |
| Min/Max | 43.0-47.0 | 0-.09 | Rem | 9.0-11.0 |
Physical Properties:
| Densitylb/cu in. at 68°F | 0.306 | 16.2 · 10 6? per °C (20-300 C) |
| Specific Gravity | 8.47 | 7.89 gm/cm3 @ 20 C |
Applicable Specifications:
| Form | System | Standard | Description |
| Bar | ASTM | B124 | Copper And Copper-alloy Forging Rod, Bar And Shapes |
| Die | ASTM | B283 | Copper And Copper Alloy Die Forgings (hot Pressed) |
| Rod | ASTM | B124 | Copper And Copper-alloy Forging Rod, Bar And Shapes |
| Shapes | ASTM | B124 | Copper And Copper-alloy Forging Rod, Bar And Shapes |
Sizes Available
| HOLLOW RODS | Min Bore Size 20 mm and Max OD 100 mm |
| ROUND RODS/BARS | 6mm To 130 mm |
| WIRES | 1mm To 8mm |
| HEX | 5mm To 60mm |
| SQUARE | 4mm To 60mm |
| FLAT | 5mm Min Thickness and max Width 120mm |
| PROFILES / SECTIONS | AS per Customer Drawing |
| BILLETS | Up to 200 mm |
| INGOTS | AS per Specification |
C77600 Nickel Silver Brass
The C77600 nickle silver brass imparts silvery yellow color when sanded or polished. The alloy possess excellent strength and corrosion resistance and is not easy to extrude, thus limited to relatively simple shapes with heavier walls. The “As Extruded” finish of C77600 is gray and further polishing of the alloy reveals the yellow tinted silvery color approaching stainless steel in appearance.
Applications :
- Industrial : Decorative Molding, Elevator Sills, Hardware, Architectural
Chemical Composition:
| Cu | Fe | Pb | Sn | Zn | Ni | Mn | |
| Min/Max | 42-45 | 0-.20 | 0-.25 | 0-.15 | Rem | 12-14 | 0-.25 |
Mechanical Properties :
| Form | Temper Code | Tensile Strength (ksi) | Elongation (%) | Rockwell B scale | YS-0.2% Offset |
| Extrusions | M30 | 91 Typ | 30 Typ | 83 Typ | 47 Typ |
Sizes Available:
| HOLLOW RODS | Min Bore Size 20 mm and Max OD 100 mm |
| ROUND RODS/BARS | 6mm To 130 mm |
| WIRES | 1mm To 8mm |
| HEX | 5mm To 60mm |
| SQUARE | 4mm To 60mm |
| FLAT | 5mm Min Thickness and max Width 120mm |
| PROFILES / SECTIONS | AS per Customer Drawing |
| BILLETS | Up to 200 mm |
| INGOTS | AS per Specification |
C79800 Nickel Silver Brass
The c79800 nickel silver brass is used while manufacturing architecture ornamental castings.
Typical Uses :-
- Architecture Ornamental Castings.
- Builders Hardware.
- Consumer Musical Instruments Components.
- Industrial Valves, Fittings for Diary and Food Processing Applications.
Chemical Composition:
| Cu | Pb | Zn | Ni | Mn | Other impurities | |
| Min/Max % | 42.00-45.00 | 1.00-2.50 | REM. | 11.00-13.00 | 4.50-6.00 | 0.20 Max |
Fabrication:
| Joining Technique | Suitability |
| Soldering | Excellent |
| Brazing | Excellent |
| Oxyacetylene Welding | Not Recommended |
| Gas Shielded Arc Welding | Not Recommended |
| Coated Metal Arc Welding | Not Recommended |
Mechanical Properties (according to ASTM B505-08) :
| Tensile Strength(min) | Yield Strength(at .5% extention under load min) | Elongation(in 2in. or 50mm min, %) | Brinell Hardness(min) | Remarks |
| Ksi | MPa | Ksi | MPa | |
| 45 | 310 | 22 | 152 | 8 |
Mechanical Properties :
| Form | Temper | Temper Code | Tensile Strength (ksi) | Elongation (%) | YS-0.2% Offset | Section Size (in) |
| Rod | Extra Hard | H06 | 103 Min 110 Typ |
1 Min | 84 Min 93 Typ |
<.250 |
| Hard | H04 | 88.5 Min 94 Typ |
5 Min | 65 Min 74 Typ |
<.250 | |
| H04 | 88.5 Min 94 Typ |
5 Min | 65 Min 74 Typ |
>.250 | ||
| Wire | Extra Hard | H06 | 103 Min 110 Typ |
1 Min | 84 Min 93 Typ |
<.250 |
| Hard | H04 | 88.5 Min 94 Typ |
5 Min | 65 Min 74 Typ |
>.250 | |
| H04 | 88.5 Min 94 Typ |
5 Min | 65 Min 74 Typ |
<.250 |
Physical Properties:
| Melting Point – Liquidus | 1670°F |
| Melting Point – Solidus | 1670°F |
| Density | 0.3 lb/cu in. at 68°F |
| Specific Gravity | 8.3 |
| Electrical Conductivity | 5% IACS at 68°F |
| Thermal Conductivity | 17.4 Btu/ sq ft/ ft hr/ °F at 68°F |
| Coefficient of Thermal Expansion | 10.6 10-6per °F (68 – 212°F) |
| Specific Heat Capacity | 0.1Btu/ lb /°F at 68°F |
| Modulas of Elasticity in Tension | 16700 ksi |
Sizes Available
| HOLLOW RODS | Min Bore Size 20 mm and Max OD 100 mm |
| ROUND RODS/BARS | 6mm To 130 mm |
| WIRES | 1mm To 8mm |
| HEX | 5mm To 60mm |
| SQUARE | 4mm To 60mm |
| FLAT | 5mm Min Thickness and max Width 120mm |
| PROFILES / SECTIONS | AS per Customer Drawing |
| BILLETS | Up to 200 mm |
| INGOTS | AS per Specification |
C79860 Nickel Silver
Applications :-
- Consumer : Ballpoint Pen Tips, Eyeglass Frames
- Industrial : Connectors, Fiberoptics, Lock Pins
Equivalent Specifications:
| Specifications | Designation |
| BS | |
| EN | CW407J,CW408J |
| JIS | |
| DIN | 2.0750 |
| ISO | CuNi12Zn37Mn6Pb2 |
| Russian (GOST) |
Chemical Specification:
| Cu | Pb | Zn | Ni | Mn | Other impurities | |
| Min/Max % | 42.00-45.00 | 1.00-2.50 | REM. | 11.00-13.00 | 4.50-6.00 | 0.20 Max |
Specifications:
| Ingots | |
| Bar | |
| Square | |
| Billets | |
| Plate | |
| Sheet | |
| Flat | |
| Rods | |
| Profiles | |
| Wire | |
| Hollows | |
| Hex | |
| Tubes |
Fabrication Properties:
| Joining Technique | Suitability |
| Brazing | Fair |
| Butt Weld | Fair |
| Capacity for Being Cold Worked | Fair |
| Capacity for Being Hot Formed | Good |
| Coated Metal Arc Welding | Fair |
| Gas Shielded Arc Welding | Fair |
| Forgeability Rating | 80 |
| Oxyacetylene Welding | Fair |
| Seam Weld | Fair |
| Soldering | Good |
| Spot Weld | Fair |
Physical Properties:
| Melting Point – Liquidus | 1670°F |
| Melting Point – Solidus | 1607°F |
| Density | 0.3 lb/cu in. at 68°F |
| Specific Gravity | 8.3 |
| Electrical Conductivity | 5% IACS at 68°F |
| Thermal Conductivity | 17.4 Btu/ sq ft/ ft hr/ °F at 68°F |
| Coefficient of Thermal Expansion 68-212 | 10.6 10?6 per °F (68 – 212°F) |
| Specific Heat Capacity | 0.1Btu/ lb /°F at 68°F |
| Modulas of Elasticity in Tension | 16700 ksi |
Sizes Available
| HOLLOW RODS | Min Bore Size 20 mm and Max OD 100 mm |
| ROUND RODS/BARS | 6mm To 130 mm |
| WIRES | 1mm To 8mm |
| HEX | 5mm To 60mm |
| SQUARE | 4mm To 60mm |
| FLAT | 5mm Min Thickness and max Width 120mm |
| PROFILES / SECTIONS | AS per Customer Drawing |
| BILLETS | Up to 200 mm |
| INGOTS | AS per Specification |