C46400 Naval Brass Specifications

End ProductSpecification
BarAMS 4611, 4612, ASTM B21, FEDERAL QQ-B-639, SAE J463, J461
Bar, ForgingASTM B124
BoltsASTM F468
Forgings, DieASTM B283
NutsASTM F467
PlateFEDERAL QQ-B-639
Plate, CladASTM B432
Plate, Condenser TubeASME SB171, ASTM B171
RodAMS 4611, 4612, ASTM B21, SAE J463, J461
Rod, ForgingASTM B124
ScrewsASTM F468
ShapesASTM B21
Shapes, ForgingASTM B124
SheetFEDERAL QQ-B-639
StripFEDERAL QQ-B-639, SAE J463, J461
StudsASTM F468
Wire, MetallizingMILITARY MIL-W-6712

Category:

C46400 Naval Brass

If you have spent any time around metals then you know just how malleable and strong brass is. This is primarily due to its combination of copper and zinc – and the occasional addition of tin and other metals. And while brass is good for a lot of things, it is not good for conditions that require constant contact with varying humidity, moisture, or water. Especially if it is saltwater. For this type of application, you are going to need Naval Brass, a type of brass classified as Alpha.

C46400 is the classic Naval Brass and gets its name from its historical application in the marine trades. Sometimes referred to as Marine Brass, this metal has been widely used in military applications. Thanks to the addition of tin and zinc, it holds up well in wet conditions – including underwater environments.

Naval Brass has been used as propeller shafts, marine hardware, and fittings. It is a great metal choice to use in both salt water and freshwater applications. In addition, it has many industrial applications.

As mentioned, because of its strong, corrosive-resistant and hardness it is also a great material to use for industrial applications. It has been used for welding rods, condenser tubes, structures, aircraft parts, decorative and more.

Lion Metal carries C46400 Naval Brass in Sheet, Plate and Rounds and we also have it in a specialty product, C46400 Diamond Cut Naval Brass Plate. We carry a wide range of diameters in solid bar stock and thicknesses in the sheet and plate. We will cut the material to length. C46400 Naval Brass is one of the top choices for industrial and marine atmosphere applications. This is due to it’s high corrosion resistance to seawater.

Typical uses

Builders hardware: lock pins
Electrical: precision shipboard equipment
Fasteners: bolts, nuts, rivets
Industrial: aircraft turnbuckle barrels, balls, bearings, bushings, condenser plates, dies for golf ball production,heat exchanger tubes, hub cones, pressure vessels, structural uses, valve stems, welding rod
Marine: decorative fittings, hardware, propeller shafts, shafting, turnbuckles
Ordnance: missile components
Other: baffle plates and flanges
Plumbing: fittings

Similar or equivalent specification

CDAASTMSAEAMSFederalMilitaryOther
C46400B21
B21M
J461
J463
QQ-B-639

Chemical composition

Cu%Pb%Sn%Zn%Fe%
59.00-
62.00
0.200.50-
1.00
Rem.0.10
Chemical composition according to ASTM B21/B21M-20
Note: Cu + sum of named elements, 99.6% min. Single values represent maximums.

Machinability

Copper alloy UNS No.Machinability ratingDensity (lb/in3 at 68 °F)
C46400300.304

Mechanical properties

Mechanical properties according to ASTM B21/B21M-20

C46400

H02 half hard

Size range: ½” and under

Tensile strength, minYield strength, at 0.5% extension under load, minElongation, 4x diameter or 4x thickness, minRockwell “B” hardnessRemarks
ksiMPaksiMPa%min to max HRB
604142718622

Size range: over ½” to 1″ inclusive rod

Tensile strength, minYield strength, at 0.5% extension under load, minElongation, 4x diameter or 4x thickness, minRockwell “B” hardnessRemarks
ksiMPaksiMPa%min to max HRB
60414271862560-80

Size range: over 1″ to 2″ inclusive rod

Tensile strength, minYield strength, at 0.5% extension under load, minElongation, 4x diameter or 4x thickness, minRockwell “B” hardnessRemarks
ksiMPaksiMPa%min to max HRB
58400261792555-80

Size range: over 2″ to 3″ inclusive rod

Tensile strength, minYield strength, at 0.5% extension under load, minElongation, 4x diameter or 4x thickness, minRockwell “B” hardnessRemarks
ksiMPaksiMPa%min to max HRB
54372251722555-80

Size range: over 3″ to 4″ inclusive rod

Tensile strength, minYield strength, at 0.5% extension under load, minElongation, 4x diameter or 4x thickness, minRockwell “B” hardnessRemarks
ksiMPaksiMPa%min to max HRB
54372221522755-80

Size range: over 4″

Tensile strength, minYield strength, at 0.5% extension under load, minElongation, 4x diameter or 4x thickness, minRockwell “B” hardnessRemarks
ksiMPaksiMPa%min to max HRB
54372221523055-80

Physical properties

Physical properties provided by CDA
US CustomaryMetric
Melting point – liquidus1650 °F899 °C
Melting point – solidus1630 °F888 °C
Density0.304 lb/in3 at 68 °F8.41 gm/cm3 at 20 °C
Specific gravity8.418.41
Electrical conductivity26% IACS at 68 °F0.151 MegaSiemens/cm at 20 °C
Thermal conductivity67 Btu/sq ft/ft hr/°F at 68 °F116 W/m at 20 °C
Coefficient of thermal expansion 68-57211.8 · 10-6 per °F (68-572 °F)20.4 · 10-6 per °C (20-300 °C)
Specific heat capacity0.09 Btu/lb/°F at 68 °F377.1 J/kg at 20 °C
Modulus of elasticity in tension15000 ksi103420 MPa
Modulus of rigidity5600 ksi38611 MPa

Fabrication properties

TechniqueSuitability
SolderingExcellent
BrazingExcellent
Oxyacetylene weldingGood
Gas shielded arc weldingFair
Coated metal arc weldingNot recommended
Spot weldGood
Seam weldFair
Butt weldGood
Capacity for being cold workedFair
Capacity for being hot formedExcellent
Forgeability Rating90
Machinability rating30
Fabrication properties provided by CDA

Thermal properties

TreatmentMinimum*Maximum*
Annealing8001100
Hot treatment12001500
Thermal properties provided by CDA
*Temperature is measured in Fahrenheit.

Common fabrication processes

Blanking, drawing, forming and bending, heading and upsetting, hot forging and pressing, hot heading and upsetting, shearing

Common fabrication processes provided by CDA