70/30 Lead Free Brass Wire

70/30 Lead Free Brass Wire – ASTM B36 (Bar, Sheet, and Plate), ASTM B135 (Tubing)
Has the highest ductility in the yellow brass series. Easily machined but is more often cold formed.

Applications :
Architecture: Grillwork
Automotive: Odometer Contacts, Heater Cores, Thermostats, Electrical Connectors, Radiator Cores, Radiator Tube, Radiator Tanks, Tanks
Builders Hardware: Odometer Contacts, Heater Cores, Thermostats, Electrical Connectors, Radiator Cores, Radiator Tube, Radiator Tanks, Tanks
Consumer: Snaps, Planters, Fireplace Screens, Etched Articles, Bird Cages, Coinage, Chain Links, Pen/Pencil Inserts and Clips, Syringe Parts, Watch Parts, Costume Jewelry, Buttons, Shells – Electrical Sockets, Lamps

Equivalent Specifications:

BSCZ 106
JISC 2600

Chemical Composition:

Min/Max68.5 –


BarASTM B36, B19, SAE J463, J461
Brazing Filler MetalFEDERAL QQ-B-650
Cups, Cartridge CaseASTM B129, MILITARY MIL-C-10375,
DiskASTM B19
PlateAMS 4507, 4505, ASTM B19, B36
RodSAE J463, J461
SheetAMS 4507, 5408, 4505, ASTM B19, B36, SAE J463, J461
Shim Stock, LaminatedMILITARY MIL-S-22499
StripAMS 4507, 4505, ASTM B36, B569, B19, B888, SAE J463, J461
Tube, SeamlessASTM B135, FEDERAL WW-T-791, MILITARY MIL-T-20219, SAE J463, J461
Tube, WeldedASTM B587, B587
WireASTM B134, SAE J463, J461


Joining TechniqueSuitability
Butt WeldGood
Capacity for Being Cold WorkedExcellent
Capacity for Being Hot FormedFair
Coated Metal Arc WeldingNot Recommended
Gas Sheilded Arc WeldingGood
Machinability rating30
Oxyacetylene WeldingGood
Seam WeldNot Recommended
Spot WeldFair

Physical Properties

Product PropertyUS CustomaryMetric
Coefficient of Thermal Expansion11.1 ·10-6 per °F (68-572 °F)20.0 · 10 6? per °C (20-300 C)
Density0.308 lb/in3 @ 68 F8.53 gm/cm3 @ 20 C
Electrical Conductivity28 %IACS @ 68 F0.164 MegaSiemens/cm @ 20 C
Electrical Resistivity37.0 ohms-cmil/ft @ 68 F6.15 microhm-cm @ 20 C
Melting Point Liquid US1750 F954 C
Melting Point Solid US1680 F916 C
Modulas of Elasticity in Tension16000 ksi110000 MPa
Modulas of Rigidity6000 ksi41370 MPa
Specific Gravity8.538.53
Specific Heat Capacity0.09 Btu/lb/°F @ 68 F377.1 J/kg · °K at 293 K
Thermal Conductivity70.0 Btu · ft/(hr · ft2 ·°F) @ 68 F121.2 W/m · °K at 20 C

Sizes Available

WIRE1mm TO 8 mm
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 200mm
INGOTSAS per Specification

70/30 Lead Free Brass Wire

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