Naval Brass Hollow Rods

The lead free Naval Brass Hollow Rods is the result of the composition of 60% copper, 39.2% zinc and 0.8% tin. The addition of tin with zinc results in the high corrosion resistance in sea water. This makes the alloy resistant to dezincification that inhibit the impingement by seawater at higher than normal temperatures. The alloy is also appreciated for its resistance to wear, fatigue, galling, and stress corrosion cracking.

Applications :-

  • 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, Golf Ball Production, Pressure Vessels, Bearings, Bushings, Hub Cones
  • Marine: Propeller Shafts, Marine Hardware, Decorative Fittings, Shafting, Propeller Shafts, Turn Buckles
  • Ordinance: Missile Components
  • Plumbing: Fittings: Baffle Plates And Flanges
  • Plumbing: Fittings

Equivalent Specifications:

BSCZ 133
JISC 4640

Chemical Composition:

Min/Max59.0 – – 1.0Rem


End ProductSpecification
BarAMS 4611, 4612, ASTM B21, FEDERAL QQ-B-639, SAE J463, J461
Bar, ForgingASTM B124
BoltsASTM F468
Forgings, DieASTM B283
NutsASTM F467
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
StripFEDERAL QQ-B-639, SAE J463, J461
StudsASTM F468
Wire, MetallizingMILITARY MIL-W-6712


Joining TechniqueSuitability
Butt WeldGood
Capacity for Being Cold WorkedNot Recommended
Capacity for Being Hot FormedExcellent
Coated Metal Arc WeldingNot Recommended
Forgeability Rating90
Gas Sheilded Arc WeldingFair
Machinability rating30
Oxyacetylene WeldingGood
Seam WeldFair
Spot WeldGood

Physical Properties:

Product PropertyUS CustomaryMetric
Coefficient of Thermal Expansion11.8 ·10-6 per oF (68-572 F)21.2 · 10 6? per °C (20-300 C)
Density0.304 lb/in3 @ 68 F8.41 gm/cm3 @ 20 C
Electrical Conductivity26 %IACS @ 68 F0.152 MegaSiemens/cm @ 20 C
Electrical Resistivity39.9 ohms-cmil/ft @ 68 F6.63 microhm-cm @ 20 C
Melting Point Liquid US1650 F899 C
Melting Point Solid US1630 F888 C
Modulas of Elasticity in Tension15000 ksi103400 MPa
Modulas of Rigidity5600 ksi38610 MPa
Specific Gravity8.418.41
Specific Heat Capacity0.09 Btu/lb/°F @ 68 F377.1 J/kg · °K at 293 K

Sizes Available:

Hollow RodsMin Bore Size 20 mm and Max OD 100 mm
Round Rods6mm To 130 mm
Hex5mm To 60mm
Square4mm To 60mm
Flat5mm Min Thickness and max Width 120mm
Profiles / SectionsAS per Customer Drawing
BilletsUp to 200 mm
IngotsAS per Specification

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