Zamak 5 (ASTM AC41A, Z35531, Mazak 5) Zinc Alloy
Wrought Aluminum Alloys
Property Overview
Density6.4g/cm³
Elastic Modulus87GPa
Tensile Strength330MPa
Yield Strength240MPa
Brinell Hardness92HB
Maximum Service Temperature95°C
Chemical Composition
NI
0 to 0.020%
SI
0 to 0.030%
CU
0.7 to 1.3%
AL
3.5 to 4.3%
CD
0 to 0.0050%
MG
0.025 to 0.080%
PB
0 to 0.0050%
SN
0 to 0.0030%
ZN
94.3 to 95.7%
FE
0 to 0.1%
Mechanical
Compressive (Crushing) Strength
600 MPa
Elastic (Young's, Tensile) Modulus
87 GPa
Elongation at Break
6.3 %
Fatigue Strength
56 MPa
Poisson's Ratio
0.25
Shear Modulus
33 GPa
Shear Strength
260 MPa
Tensile Strength: Ultimate (UTS)
330 MPa
Tensile Strength: Yield (Proof)
240 MPa
Hardness
Brinell Hardness
92
Knoop Hardness
120
Rockwell B Hardness
57
Physical
Density
6.4 g/cm 3
Thermal
Latent Heat of Fusion
120 J/g
Maximum Temperature: Mechanical
95 °C
Melting Completion (Liquidus)
390 °C
Melting Onset (Solidus)
380 °C
Solidification (Pattern Maker's) Shrinkage
1.2 %
Specific Heat Capacity
410 J/kg-K
Thermal Conductivity
110 W/m-K
Thermal Diffusivity
42 mm 2 /s
Thermal Expansion
27 µm/m-K
Thermal Shock Resistance
9.9 points
Electrical
Electrical Conductivity: Equal Volume
26 % IACS
Electrical Conductivity: Equal Weight (Specific)
37 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
19 MJ/m 3
Resilience: Unit (Modulus of Resilience)
330 kJ/m 3
Stiffness to Weight: Axial
7.5 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
14 points
Strength to Weight: Bending
16 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 25 x 10 3 BTU/lb
Embodied Water
380 L/kg
Embodied Water
380 L/kg 45 gal/lb
Registered Designations & Aliases
ASTM AC41AMazak 5Z35531Zamak 5 (ASTM AC41A, Z35531, Mazak 5) 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 Corrosion and Electrochemistry of Zinc, Xiaoge Gregory Zhang, 1996 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