C46400 Naval Brass "Lead Free"
Naval Brass C46400 is nominally composed of 60% copper, 39.2% zinc, and 0.8% tin. As is typical of brass alloys with the duplex alpha + beta structure, C46400 has good strength and rigidity. By substituting tin for an equal quantity of zinc, a high corrosion resistance to seawater is achieved. The addition of tin also gives the alloy an inherent resistance to dezincification, thereby further inhibiting the impingement by seawater at higher than normal temperatures. The alloy is also noted for its resistance to wear, fatigue, galling, and stress corrosion cracking.
| Standards | ASTM B-21, ASTM B-124, ASTM B-171, SAE J461, SAE J463, SAE 73, AMS 4611, AMS 4612, DIN 3.053 |
Sheet/Plate
Wire
Profile
| SOLID BAR | 3/16" - 12" diameter | |
| HEX & SQUARE BARS | up to 3" | |
| PLATES (HOT ROLLED) | cut to size, up to 6" thick | |
| SHEETS (COLD ROLLED) | up to 1/4" thick | |
| DISCS | cut to size, up to 6" thick |
Typical Uses for C46400 Naval Brass "Lead-Free"
- Builders Hardware: Lock Pins
- Electrical: Precision Shipboard Equipment
- Fasteners: Rivets, Bolts, Nuts
- Industrial: Welding Rod, Condenser Plates, Structural Uses, Valve Stems, Balls, Heat Exchanger Tube, Aircraft Turn Buckle Barrels, Bearings, Dies, Pressure Vessels, Bearings, Bushings, Hub Cones
- Marine: Propeller Shafts, Marine Hardware, Decorative Fittings, Shafting, Propeller Shafts, Turnbuckles
- Ordinance: Missile Components
- Other: Baffle Plates and Flanges
- Plumbing: Fittings
Product Specifications
| End Product | Specification |
| Bar | AMS 4611, 4612, ASTM B21, FEDERAL QQ-B-639, SAE J463, J461 |
| Bar, Forging | ASTM B124 |
| Bolts | ASTM F468 |
| Forgings, Die | ASTM B283 |
| Nuts | ASTM F467 |
| Plate | FEDERAL QQ-B-639 |
| Plate, Clad | ASTM B432 |
| Plate, Condenser Tube | ASME SB171, ASTM B171 |
| Rod | AMS 4611, 4612, ASTM B21, SAE J463, J461 |
| Rod, Forging | ASTM B124 |
| Screws | ASTM F468 |
| Shapes | ASTM B21 |
| Shapes, Forging | ASTM B124 |
| Sheet | FEDERAL QQ-B-639 |
| Strip | FEDERAL QQ-B-639, SAE J463, J461 |
| Studs | ASTM F468 |
| Wire, Metallizing | MILITARY MIL-W-6712 |
Chemical Composition
| Cu | Fe | Pb | Sn | Zn | |
| Min/Max | 59.0 - 62.0 | 0.1 | 0.2 | 0.5 - 1.0 | Rem |
| Nominals | 60.0000 | - | - | 0.7000 | 39.2000 |
Temper
| Product Type | Temper Type |
| Bar | AMS 4611, 4612, ASTM B21, FEDERAL QQ-B-639, SAE J463, J461 |
| Bar, Forging | ASTM B124 |
| Bolts | ASTM F468 |
| Forgings, Die | ASTM B283 |
| Nuts | ASTM F467 |
| Plate | FEDERAL QQ-B-639 |
| Plate, Clad | ASTM B432 |
| Plate, Condenser Tube | ASME SB171, ASTM B171 |
| Rod | AMS 4611, 4612, ASTM B21, SAE J463, J461 |
| Rod, Forging | ASTM B124 |
| Screws | ASTM F468 |
| Shapes | ASTM B21 |
| Shapes, Forging | ASTM B124 |
| Sheet | FEDERAL QQ-B-639 |
| Strip | FEDERAL QQ-B-639, SAE J463, J461 |
| Studs | ASTM F468 |
| Wire, Metallizing | MILITARY MIL-W-6712 |
Mechanical Properties
| 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 |
| FLAT PRODUCTS | |||||||||||||||||||
| O50 | 0.04 | 68 | 62 | 30 | - | - | - | - | - | - | - | - | - | - | 41 | - | |||
| O50 | 1 | 0 | TYP | 20 | 427 | 207 | - | - | 40 | 60 | - | - | 57 | - | - | - | 283 | - | 0 |
| O50 | 0.25 | 68 | 60 | 28 | - | - | - | - | - | - | - | - | - | - | 41 | - | |||
| O50 | 6.35 | 0 | TYP | 20 | 414 | 193 | - | - | 45 | 58 | - | - | 56 | - | - | - | 283 | - | 0 |
| H01 | 0.04 | 68 | 70 | 58 | - | - | - | - | - | - | - | - | - | - | 43 | - | |||
| H01 | 1 | 0 | TYP | 20 | 483 | 400 | - | - | 17 | 75 | - | - | 68 | - | - | - | 296 | - | 0 |
| M20 | 1 | 68 | 55 | 25 | - | - | - | - | - | - | - | - | - | - | 40 | - | |||
| M20 | 25.4 | 0 | TYP | 20 | 379 | 172 | - | - | 50 | 55 | - | - | 55 | - | - | - | 276 | - | 0 |
| O60 | 0.25 | 68 | 58 | 25 | - | - | - | - | - | - | - | - | - | - | 40 | - | |||
| O60 | 6.35 | 0 | TYP | 20 | 400 | 172 | - | - | 49 | 56 | - | - | 55 | - | - | - | 276 | - | 0 |
| ROD | |||||||||||||||||||
| H02 | 0.25 | 68 | 80 | 57 | - | - | - | - | - | - | - | - | - | - | 45 | - | |||
| H02 | 6.35 | 20 | TYP | 20 | 552 | 393 | - | - | 20 | 85 | - | - | - | - | - | - | 310 | - | 0 |
| H01 | 1 | 68 | 69 | 46 | - | - | - | - | - | - | - | - | - | - | 43 | - | |||
| H01 | 25.4 | 8 | TYP | 20 | 476 | 317 | - | - | 27 | 78 | - | - | - | - | - | - | 296 | - | 0 |
| O50 | 2.01 | 68 | 62 | 28 | - | - | - | - | - | - | - | - | - | - | 42 | - | |||
| O50 | 51 | 0 | TYP | 20 | 427 | 193 | - | - | 43 | 60 | - | - | - | - | - | - | 290 | - | 0 |
| H02 | 1 | 68 | 75 | 53 | - | - | - | - | - | - | - | - | - | - | 44 | - | |||
| H02 | 25.4 | 20 | TYP | 20 | 517 | 365 | - | - | 20 | 82 | - | - | - | - | - | - | 303 | - | 0 |
| O50 | 0.25 | 68 | 63 | 30 | - | - | - | - | - | - | - | - | - | - | 42 | - | |||
| O50 | 6.35 | 0 | TYP | 20 | 434 | 207 | - | - | 40 | 60 | - | - | - | - | - | - | 290 | - | 0 |
| O60 | 2.01 | 68 | 56 | 25 | - | - | - | - | - | - | - | - | - | - | 40 | - | |||
| O60 | 51 | 0 | TYP | 20 | 386 | 172 | - | - | 47 | 55 | - | - | - | - | - | - | 276 | - | 0 |
| H01 | 2.01 | 68 | 67 | 40 | - | - | - | - | - | - | - | - | - | - | 43 | - | |||
| H01 | 51 | 8 | TYP | 20 | 462 | 276 | - | - | 35 | 75 | - | - | - | - | - | - | 296 | - | 0 |
| O50 | 1 | 68 | 63 | 30 | - | - | - | - | - | - | - | - | - | - | 42 | - | |||
| O50 | 25.4 | 0 | TYP | 20 | 434 | 207 | - | - | 40 | 60 | - | - | - | - | - | - | 290 | - | 0 |
| O60 | 1 | 68 | 57 | 25 | - | - | - | - | - | - | - | - | - | - | 40 | - | |||
| O60 | 25.4 | 0 | TYP | 20 | 393 | 172 | - | - | 47 | 55 | - | - | - | - | - | - | 276 | - | 0 |
| O60 | 0.25 | 68 | 58 | 27 | - | - | - | - | - | - | - | - | - | - | 40 | - | |||
| O60 | 6.35 | 0 | TYP | 20 | 400 | 186 | - | - | 45 | 56 | - | - | - | - | - | - | 276 | - | 0 |
| H01 | 0.25 | 68 | 70 | 48 | - | - | - | - | - | - | - | - | - | - | 43 | - | |||
| H01 | 6.35 | 10 | TYP | 20 | 483 | 331 | - | - | 25 | 80 | - | - | - | - | - | - | 296 | - | 0 |
| TUBE | |||||||||||||||||||
| H80 | 0 | 68 | 88 | 66 | - | - | - | - | - | - | - | - | - | - | - | - | |||
| H80 | 0 | 35 | TYP | 20 | 607 | 455 | - | - | 18 | 95 | - | - | - | - | - | - | - | - | 0 |
Physical Properties
| Product Property | US Customary | Metric |
| Coefficient of Thermal Expansion | 11.8 ·10-6 per oF (68-572 F) | 21.2 · 10-6 per oC (20-300 C) |
| Density | 0.304 lb/in3 @ 68 F | 8.41 gm/cm3 @ 20 C |
| Electrical Conductivity | 26 %IACS @ 68 F | 0.152 MegaSiemens/cm @ 20 C |
| Electrical Resistivity | 39.9 ohms-cmil/ft @ 68 F | 6.63 microhm-cm @ 20 C |
| Melting Point Liquid US | 1650 F | 899 C |
| Melting Point Solid US | 1630 F | 888 C |
| Modulas of Elasticity in Tension | 15000 ksi | 103400 MPa |
| Modulas of Rigidity | 5600 ksi | 38610 MPa |
| Specific Gravity | 8.41 | 8.41 |
| Specific Heat Capacity | 0.09 Btu/lb/oF @ 68 F | 377.1 J/kg oK at 293 K |
| Thermal Conductivity | 67.0 Btu · ft/(hr · ft2 oF) @ 68 F | 116.0 W/m oK at 20 C |
Fabrication
| Joining Technique | Suitability |
| Brazing | Excellent |
| Butt Weld | Good |
| Capacity for Being Cold Worked | Fair |
| Capacity for Being Hot Formed | Excellent |
| Coated Metal Arc Welding | Not Recommended |
| Forgeability Rating | 90 |
| Gas Sheilded Arc Welding | Fair |
| Machinability rating | 30 |
| Oxyacetylene Welding | Good |
| Seam Weld | Fair |
| Soldering | Excellent |
| Spot Weld | Good |
Our Services
40+ years of experience
Aviva Metals Houston warehouse operation is a AS9120B, and AS9100D in our Ohio foundry, based on ISO 9001:2015. We are now also offering our complete range of brass, bronze and copper alloys in precision machined or milled parts, in full accordance with your drawings. Aviva Metals creates custom precision bearings and bushings, flanges, washers, double flange bearings, full half bearings, spacers and special machined parts that can be shipped on a global basis and in full accordance with most international standards.
