Zamak 2 (ASTM AC43A, Z35541, Mazak 2) Zinc Alloy
Wrought Aluminum Alloys
Property Overview
Density6.5g/cm³
Elastic Modulus87GPa
Tensile Strength360MPa
Yield Strength270MPa
Brinell Hardness100HB
Maximum Service Temperature95°C
Chemical Composition
NI
0 to 0.020%
SI
0 to 0.030%
CU
2.5 to 3.3%
AL
3.5 to 4.3%
CD
0 to 0.0050%
MG
0.020 to 0.060%
PB
0 to 0.0050%
SN
0 to 0.0030%
ZN
92.2 to 94%
FE
0 to 0.1%
Mechanical
Compressive (Crushing) Strength
640 MPa
Elastic (Young's, Tensile) Modulus
87 GPa
Elongation at Break
6.0 %
Fatigue Strength
59 MPa
Poisson's Ratio
0.26
Shear Modulus
33 GPa
Shear Strength
320 MPa
Tensile Strength: Ultimate (UTS)
360 MPa
Tensile Strength: Yield (Proof)
270 MPa
Hardness
Brinell Hardness
100
Knoop Hardness
130
Rockwell B Hardness
63
Physical
Density
6.5 g/cm 3
Thermal
Latent Heat of Fusion
130 J/g
Maximum Temperature: Mechanical
95 °C
Melting Completion (Liquidus)
390 °C
Melting Onset (Solidus)
380 °C
Solidification (Pattern Maker's) Shrinkage
1.3 %
Specific Heat Capacity
410 J/kg-K
Thermal Conductivity
110 W/m-K
Thermal Diffusivity
41 mm 2 /s
Thermal Expansion
28 µm/m-K
Thermal Shock Resistance
11 points
Electrical
Electrical Conductivity: Equal Volume
25 % IACS
Electrical Conductivity: Equal Weight (Specific)
35 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
20 MJ/m 3
Resilience: Unit (Modulus of Resilience)
420 kJ/m 3
Stiffness to Weight: Axial
7.5 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
15 points
Strength to Weight: Bending
17 points
Environmental
Base Metal Price
12 % relative
Embodied Carbon
3.0 kg CO 2 /kg material
Embodied Energy
57 MJ/kg
Embodied Energy
57 MJ/kg 24 x 10 3 BTU/lb
Embodied Water
380 L/kg
Embodied Water
380 L/kg 45 gal/lb
Registered Designations & Aliases
ASTM AC43AMazak 2Z35541Zamak 2 (ASTM AC43A, Z35541, Mazak 2) Zinc Alloy
Standards
ASTM B86 ASTM B86: Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings
EN 12844 EN 12844: Zinc and zinc alloys - Castings - Specifications
EN 12844 EN 12844: Zinc and zinc alloys - Castings - Specifications ASTM B86: Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings Corrosion Resistance of Zinc and Zinc Alloys, Frank C. Porter, 1994 Zinc Handbook: Properties, Processing, and Use In Design, Frank C. Porter, 1991 Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993