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METALCO supplies copper, brass, and bronze semi-finished products for OEMs and distributors worldwide — with documented quality, export packing, and technical support you can rely on.

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C31400 Leaded Commercial Bronze Hollow Bar Rod

Leaded Commercial Bronze Hollow Bar Rod / C31400 Leaded Commercial Bronze Hollow Bar Rod

C31400 Leaded Commercial Bronze Hollow Bar Rods are precision-manufactured copper alloy products offering excellent machinability, good corrosion resistance, and reliable mechanical strength. They provide smooth machining, dimensional accuracy, and long service life, making them ideal for bushings, bearings, sleeves, valve components, fittings, and precision industrial engineering applications.

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Description
Chemical Composition
Physical Properties
Sizes Available

Leaded Commercial Bronze C31400 combines the natural corrosion resistance of C22000 with the machinability typical of leaded brasses. Like C22000, it is an alpha brass nominally composed of 89% copper and 9% zinc, but it also contains approximately 2% lead to impart free-cutting characteristics. The relatively low zinc content of C31400 provides excellent corrosion resistance in potable water along with a pleasing golden color that matches C22000 hardware. Alloy C31400 is also suitable for outdoor use due to its resistance to stress corrosion cracking and to corrosion in general, but where the highest strength is not required.

Typical Applications:

BUILDERS HARDWARE: Door Knobs
ELECTRICAL: Connectors for Wire and Cable, Electrical Plug Type Connectors
FASTENERS: Screws, Nuts INDUSTRIAL: Pickling Fixtures, Pickling Racks, Pickling Crates, Screw Machine Parts

Equivalent Specifications

SPECIFICATIONS	DESIGNATION
ISO	CuNi30Mn1Fe
Europen	CuNi30Mn1Fe
BS	CN 107
JIS	C 7150
Russian	MNZMo30-1-1

Chemical Composition

	Cu	Fe	Pb	Ni	Zn
Min/Max	87.5 - 90.5	.01	1.3 - 2.5	0.7	Rem
Nominals	89.0000	-	1.9000	-	9.1000

Physical Properties

Product Property	US Customary
Coefficient of Thermal Expansion	10.2 10−6Per °F (68-572 F)
Density	0.319 lb/in3 @ 68 F
Electrical Conductivity	42 %IACS @ 68 F
Electrical Resistivity	24.7 ohms-cmil/ft @ 68 F
Melting Point Liquid US	1900 F
Melting Point Solid US	1850 F
Modulas of Elasticity in Tension	17000 ksi
Modulas of Rigidity	6400 ksi
Specific Gravity	8.83
Specific Heat Capacity	0.09 Btu/lb/°F @ 68 F
Thermal Conductivity	10.4 BTU in/hr.ft2.°F @ 68°F

Sizes Available

HOLLOW RODS	Min Bore Size 20 mm and Max OD 100 mm
ROUND RODS/RODS	6mm To 130 mm
HEX	5mm To 60mm
SQUARE	4mm To 60mm
FLAT	5mm Min Thickness and max Width 120mm
PROFILES / SECTIONS	S per Customer Drawing
BILLETS	Up to 200 mm
INGOTS	AS per Specification