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

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

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