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Muntz Metal

Muntz Metal
Muntz Metal
Product Code : Mac 01
Brand Name : Mac
Product Description

C28000 Muntz Metal

Founded and patented by English businessman George F. Muntz in 1832, Muntz Metal (C28000 or C280) is primarily used in architectural applications owing to its distinctive color. It is highly plastic metal at red heat that makes it ideal for pressing, stamping and hot forging. The metal alloy is also appreciated for high electrical and thermal conductivity, high ductility, high impact strength, good creep resistance, ease of welding, and low volatility under high vacuum.

Applications :

Architectural Panels

Large Architectural Trim

Structural Sheets

Door Frames

Decorative Hardware

Condenser plates

Heat Exchanger Tube

Valve Stems

Brazing Rod

Equivalent Specifications:

SPECIFICATIONS

DESIGNATION

ISO

CuZn40

Europen

CuZn40

BS

CZ 109

JIS

C 2800

Russian

L60

Chemical Composition:

Cu

Fe

Pb

Zn

Min/Max

59.0 - 63.0

80.0 - 83.0

0.2

Rem

Nominals

60

-

-

40

Fabrication Properties

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

40

Oxyacetylene Welding

Good

Seam Weld

Not Recommended

Soldering

Excellent

Spot Weld

Good

Physical Properties

Product Property

US Customary

Metric

Coefficient of Thermal Expansion

11.6 ·10-6 per oF (68-572 F)

20.9 · 10 6? per °C (20-300 C)

Density

0.303 lb/in3 @ 68 F

8.39 gm/cm3 @ 20 C

Electrical Conductivity

28 %IACS @ 68 F

0.164 MegaSiemens/cm @ 20 C

Electrical Resistivity

37.0 ohms-cmil/ft @ 68 F

6.15 microhm-cm @ 20 C

Melting Point Liquid US

1660 F

904 C

Melting Point Solid US

1650 F

899 C

Modulas of Elasticity in Tension

15000 ksi

103400 MPa

Modulas of Rigidity

5600 ksi

38610 MPa

Specific Gravity

8.39

8.39

Specific Heat Capacity

0.09 Btu/lb/°F @ 68 F

377.1 J/kg · °K at 293 K

Thermal Conductivity

71.0 Btu · ft/(hr · ft2 ·°F) @ 68 F

1229.9 W/m · °K at 20 C

Sizes Available

HOLLOW RODS

Min Bore Size 20 mm and Max OD 100 mm

ROUND RODS

6mm To 130 mm

HEX

5mm To 60mm

SQUARE

4mm To 60mm

FLAT

5mm Min Thickness and max Width 120mm

PROFILES / SECTIONS

AS per Customer Drawing

BILLETS

Up to 200mm

INGOTS

AS per Specification

 


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