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ACI-ASTM CN7M Steel vs. ZA-12

ACI-ASTM CN7M steel belongs to the iron alloys classification, while ZA-12 belongs to the zinc alloys. There are 30 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN7M steel and the bottom bar is ZA-12.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
89 to 100
Elastic (Young's, Tensile) Modulus, GPa 200
83
Elongation at Break, % 44
1.6 to 5.3
Fatigue Strength, MPa 190
73 to 120
Poisson's Ratio 0.28
0.26
Shear Modulus, GPa 77
33
Tensile Strength: Ultimate (UTS), MPa 480
260 to 400
Tensile Strength: Yield (Proof), MPa 200
210 to 320

Thermal Properties

Latent Heat of Fusion, J/g 310
120
Maximum Temperature: Mechanical, °C 1100
100
Melting Completion (Liquidus), °C 1410
430
Melting Onset (Solidus), °C 1450
380
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 21
120
Thermal Expansion, µm/m-K 15
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
28
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
42

Otherwise Unclassified Properties

Base Metal Price, % relative 32
11
Density, g/cm3 8.1
6.0
Embodied Carbon, kg CO2/kg material 5.6
3.4
Embodied Energy, MJ/kg 78
64
Embodied Water, L/kg 210
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
4.0 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 110
260 to 620
Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
12 to 19
Strength to Weight: Bending, points 17
15 to 20
Thermal Diffusivity, mm2/s 5.6
43
Thermal Shock Resistance, points 12
9.4 to 14

Alloy Composition

Aluminum (Al), % 0
10.5 to 11.5
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 19 to 22
0
Copper (Cu), % 3.0 to 4.0
0.5 to 1.2
Iron (Fe), % 37.4 to 48.5
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 27.5 to 30.5
0 to 0.020
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0 to 0.060
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
87.1 to 89