Copper Alloy Section Brass C38010

 Product Data Sheet – Copper Alloys

Section Brass Alloy 380  UNS-C38010

Chemical Composition

Copper Lead Iron Aluminium Zinc
Min

55.0

1.5

0.10

Max

60.0

3.0

0.30

0.60

Remainder

Equivalent Alloy Specifications

Specification Designation
UNS

C38010

ISO

CuZn43Pb3

BSI

CZ121

Australian Product Specifications

Specification Product Form
AS1567

Wrought Rods, Bars & Sections

AS2738

Compositions & Designations

Fabrication Properties

Joining Technique Suitability

Soft Soldering

Good

Silver Soldering

Fair – Good

Brazing

Good

Oxy Acetylene Welding

Fair

Gas Shielded Arc Welding

Not Recommended

Coated Metal Arc Welding

Not Recommended

Resistance Welding

Not Recommended
Fabrication Technique Suitability

Capacity for Being Cold Worked

Good

Capacity for Being Hot Worked

Good

Hot Working Temperature

720 – 830 °C

Annealing Temperature

450 – 550 °C

Stress Relieving Temperature

250 – 350 °C

Machinability Rating

80% of free cutting brass

Polishing/Electroplating Finish

Good

Mechanical Properties

Typical Room Temperature 20°C

Temper

Tensile Strength Minimum

Elongation Minimum

Hardness Maximum

MPa

%

HV

AS1567, Wrought Rods, Bars & Sections

380

12

110

Available Forms Austral Wright Metals can supply Alloy C38010 as extruded sections – rods, angles, channels, flats & other extruded shapes.

General Description Section brass is a readily extrudable leaded alpha / beta brass alloy with a small aluminium addition, which gives a bright golden colour. The alloy is supplied only as extruded sections and shapes, with a minimum amount of cold work. The bright gold colour is lost if severe cold working operations are applied – alloy 385 is a better choice for cold work. The lead addition renders the alloy free cutting, and it is used widely in components produced by automatic machining.

 

C38010 weathers to a warm bronze tone.

Typical applications. Include builders hardware.

Physical Properties

Property

Metric Units

Imperial Units

Melting Point (Liquidus)

890°C

1635°F

Melting Point (Solidus)

875°C

1610°F

Density

8.47 gm/cm³ @ 20°C

0.306 lb/in³ @ 68°F

Specific Gravity

8.47

8.47

Coefficient of Thermal Expansion

20.9 x 10 -6 / °C (20-300°C)

11.0 x 10 -6 / °F (68-392°F)

Themal Conductivity

121 W/m. °K @ 20°C

70 BTU/ft³/ft/hr/°F @ 68°F

Thermal Capacity (Specific Heat)

377 J/kg. °K @ 20°C

0.09 BTU/lb/°F @ 68°F

Electrical Conductivity

0.162 microhm.cm @ 20°C

28% IACS

Electrical Resistivity

6.16 microhm.cm @ 20°C

38 ohms (circ mil/ft) @ 68°F

Modulus of Elasticity (tension)

96 GPa @ 20°C

14.2 x 10 6 psi @ 68°F

Modulus of Rigidity (torsion)

36 GPa @ 20°C

5.3 x 10 6 psi @ 68°F

Poisson’s Ratio

0.34

0.34

Phase Diagram & Mechanical Properties

Copper Alloy Section Brass C38010

 

Corrosion Resistance

C38010 has good corrosion resistance to weathering and fair resistance to many waters.

C38010 should not be used in contact with ammonia, ammonia compounds or amines, as it may suffer stress corrosion cracking.

Please consult Austral Wright Metals for advice on your specific application.

The technical advice and recommendations made in this Product Data Sheet should not be relied or acted upon without conducting your own further investigations, including corrosion exposure tests where needed. Please consult current editions of standards for design properties. Austral Wright Metals assumes no liability in connection with the information in this Product Data Sheet. Austral Wright Metals supplies a comprehensive range of stainless steels, copper alloys, nickel alloys and other high performance metals for challenging service conditions. Our engineers and metallurgists will be pleased to provide further data and applications advice.

 

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