C46400 Naval Brass “Lead Free”
SAE J461, AMS 4611, 4612, ASTM B21, FEDERAL QQ-B-639, SAE J463
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.
C46400 Naval Brass Lead Free
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: Properller Shafts, Marine Hardware, Decorative Fittings, Shafting, Propeller Shafts, Turn buckles
ORDINANCE: Missle Components
OTHER: Baffle Plates and Flanges
PLUMBING: Fittings
Shapes & Sizes Available From NBM
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
C46400 Naval Brass 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
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
Physical Properties
| PRODUCT PROPERTY | US CUSTOMARY | METRIC |
| Coefficient of Thermal Expansion | 11.8 ÌÎ?̴ÌÁ10-6 per oF (68-572 F) | 21.2 ÌÎ?̴ÌÁ 10 6? per ÌÎ?̴åÁC (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/ÌÎ?̴åÁF @ 68 F | 377.1 J/kg ÌÎ?̴ÌÁ ÌÎ?̴åÁK at 293 K |
| Thermal Conductivity | 67.0 Btu ÌÎ?̴ÌÁ ft/(hr ÌÎ?̴ÌÁ ft2 ÌÎ?̴ÌÁÌÎ?̴åÁF) @ 68 F | 116.0 W/m ÌÎ?̴ÌÁ ÌÎ?̴åÁK 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 |
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 |
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 |
