CDA 316, ASTM B140
Nickel Bearing C31600 is composed of approximately 89% copper, 8% zinc, and 2% lead, but also contains 1% nickel. This alloy combines the natural corrosion resistance and machinability of C31400 with a higher tensile and yield strength resulting from the controlled addition of nickel. The relatively low zinc content provides excellent corrosion resistance in potable water along with a pleasing golden color that matches C22000 hardware. It also possesses a particular resistance to stress corrosion cracking. It is an alloy suitable for outdoor use where higher strength is required.
Typical Uses for C31600 Nickel Leaded Commercial Bronze:
BUILDERS HARDWARE: Hardware
ELECTRICAL: Connectors
FASTENERS: Fasteners, Nuts, Screws
INDUSTRIAL: Screw Machine Parts
Sizes Available From NBM
SOLID BAR: 3/16" - 3 1/2" diameter
HEX BAR: 3/8" - 2" across flats
| Cu | Fe | Pb | Ni | P | Zn | |
| Min/Max | 87.5 - 90.5 | 0.1 | 1.3 - 2.5 | 0.7 - 1.2 | 0.04 - 0.1 | Rem |
| Nominals | 89.0000 | - | 1.9000 | 1.0000 | 0.7000 | 8.1000 |
| Product Type | Temper Type |
| Bar | ASTM B140 |
| Rod | ASTM B140 |
| Shapes | ASTM B140 |
| Valves | MILITARY MIL-V-18436 |
| Temper | Sect. Size | Cold Work | Type Min | Temp | Tensile Strength | YS 0.05% UL | YS 0.02% Offset | YS 0.005% Offset | Elong. | RH B | RH C | RH F | RH 30T | VH 500 | BH 500 | BH 3000 | Shear Strgth | Fatigue Strgth | Izod Impact Strgth |
| - | in. | % | - | F | ksi | ksi | ksi | ksi | % | B | C | F | 30T | 500 | 500 | 3000 | ksi | ksi | ft-lb |
| - | mm. | - | - | C | MPa | MPa | MPa | MPa | - | - | - | - | - | - | - | - | MPa | MPa | J |
| BAR | |||||||||||||||||||
| H04 | 0.25 | 68 | 63 | 56 | - | - | - | - | - | - | - | - | - | - | - | - | |||
| H04 | 6.35 | 0 | TYP | 20 | 434 | 386 | - | - | 12 | 70 | - | - | - | - | - | - | - | - | 0 |
| ROD | |||||||||||||||||||
| H04 | 1 | 68 | 65 | 57 | - | - | - | - | - | - | - | - | - | - | 39 | - | |||
| H04 | 25.4 | 38 | TYP | 20 | 448 | 393 | - | - | 15 | 70 | - | - | - | - | - | - | 269 | - | 0 |
| H04 | 0.5 | 68 | 67 | 59 | - | - | - | - | - | - | - | - | - | - | 40 | - | |||
| H04 | 12.7 | 38 | TYP | 20 | 462 | 407 | - | - | 13 | 72 | - | - | - | - | - | - | 276 | - | 0 |
| OS050 | 1 | 68 | 37 | 12 | - | - | - | - | - | - | - | - | - | - | 24 | - | |||
| OS050 | 25.4 | 0 | TYP | 20 | 255 | 83 | - | - | 45 | - | - | 55 | - | - | - | - | 165 | - | 0 |
| Product Property | US Customary | Metric |
| Coefficient of Thermal Expansion | 10.2 . 10-6 per oF (68-572 F) | 18.4 . 10 6? per å¡C (20-300 C) |
| Density | 0.32 lb/in3 @ 68 F | 8.86 gm/cm3 @ 20 C |
| Electrical Conductivity | 32 %IACS @ 68 F | 0.187 MegaSiemens/cm @ 20 C |
| Electrical Resistivity | 32.4 ohms-cmil/ft @ 68 F | 5.39 microhm-cm @ 20 C |
| Melting Point Liquid US | 1900 F | 1038 C |
| Melting Point Solid US | 1850 F | 1010 C |
| Modulas of Elasticity in Tension | 17000 ksi | 117000 MPa |
| Specific Gravity | 8.86 | 8.86 |
| Specific Heat Capacity | 0.09 Btu/lb/å¡F @ 68 F | 377.1 J/kg . å¡K at 293 K |
| Thermal Conductivity | 81.0 Btu . ft/(hr . ft2 . å¡F) @ 68 F | 140.2 W/m . å¡K at 20 C |
| Joining Technique | Suitability |
| Brazing | Good |
| Butt Weld | Fair |
| Capacity for Being Cold Worked | Good |
| Capacity for Being Hot Formed | Poor |
| Coated Metal Arc Welding | Not Recommended |
| Gas Sheilded Arc Welding | Not Recommended |
| Machinability rating | 80 |
| Oxyacetylene Welding | Not Recommended |
| Seam Weld | Not Recommended |
| Soldering | Excellent |
| Spot Weld | Not Recommended |
| End Product | Specification |
| Bar | ASTM B140 |
| Rod | ASTM B140 |
| Shapes | ASTM B140 |
| Valves | MILITARY MIL-V-18436 |
