zinc alloys


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zinc alloys

Alloys Men

Alloys for pressure
die-casting

Properties
quality control
guidelines
and norms
Supply
General
prperties

Alloys with high
aluminium content

Properties
quality control
guidelines
and norms
Supply
General
properties

Alloys for
centrifugal casting

Properties
quality control
guidelines
and norms
Supply
General
properties

 

 

zinc alloys
 

Certifications
zinc alloys
                       2002

 

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zinc alloys

GENERAL PROPERTIES

 

 
PHYSICAL  ZAMAS 12  ZAMAS 13  ZAMAS 15
 
Density Kg/dm3  6,70  6,60  6,65
Melting range C  379389  380386  380386
Specific heat capacity J/KgK  427  410  440
Thermal conductivity at 20C W/mK  104,6  113  108,9
Resistivity at 20C

x10-8Ωm

 6,75  6,40  6,55
Optimum casting range
under pressure
C  400440  400440  400440

Electrical conductivity at 20C Ms/m  14,6  15,7  15,3

Thermal linear expansion cm/cmx10-6/C    27,7  27,4  27,4
Linear shrinkage %  1,25  1,17  1,17
Young modulus Kg/mm2 (GPa)  10.000 (98)  10.000 (98)  10.000 (98)
Maximum melting temperature C  480  480  480

Mould temperature
for pressure die-casting
C  200  200  200
 

 

 
CHEMICAL (test%) - EN 1774  ZAMAS 12  ZAMAS 13  ZAMAS 15
 
Aluminium*  3,84,2  3,84,2  3,84,2
Copper  2,73,3  max 0,03  0,71,1
Magnesium  0,0350,06  0,0350,06  0,0350,06

Impurities: Lead  max 0,003  max 0,003  max 0,003
Cadmium  max 0,003  max 0,003  max 0,003
Tin  max 0,001  max 0,001  max 0,001
Iron  max 0,020  max 0,02  max 0,02
Nickel  max 0,001  max 0,001  max 0,001
Silicon  max 0,02  max 0,02  max 0,02
Tot. impurities: Cd+Pb+Sn     max 0,060  max 0,060  max 0,060
Zinc  remainder  remainder  remainder
 

 

 
MECHANICAL  ZAMAS 12  ZAMAS 13  ZAMAS 15
 
Tensile strength MPa          300330  250280  280310
Linear elongation (51 mm) %  8  10  7
Brinell hardness (500 Kg) HB  85100  7085  8090
Impact energy (6,35X6,35 Charpy) J  47  58  65
 

 

*The only alloying element utilised is aluminium 99.7% to allow the iron contents of the alloy to be controlled.

 

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