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ACI-ASTM CN7M Steel vs. ZA-27

ACI-ASTM CN7M steel belongs to the iron alloys classification, while ZA-27 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-27.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
100 to 120
Elastic (Young's, Tensile) Modulus, GPa 200
78
Elongation at Break, % 44
2.0 to 4.5
Fatigue Strength, MPa 190
110 to 170
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
31
Tensile Strength: Ultimate (UTS), MPa 480
400 to 430
Tensile Strength: Yield (Proof), MPa 200
260 to 370

Thermal Properties

Latent Heat of Fusion, J/g 310
130
Maximum Temperature: Mechanical, °C 1100
120
Melting Completion (Liquidus), °C 1410
480
Melting Onset (Solidus), °C 1450
380
Specific Heat Capacity, J/kg-K 470
530
Thermal Conductivity, W/m-K 21
130
Thermal Expansion, µm/m-K 15
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
30
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
53

Otherwise Unclassified Properties

Base Metal Price, % relative 32
11
Density, g/cm3 8.1
5.0
Embodied Carbon, kg CO2/kg material 5.6
4.2
Embodied Energy, MJ/kg 78
80
Embodied Water, L/kg 210
570

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
8.1 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 110
420 to 890
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 24
28
Strength to Weight: Axial, points 17
22 to 24
Strength to Weight: Bending, points 17
24 to 25
Thermal Diffusivity, mm2/s 5.6
47
Thermal Shock Resistance, points 12
14 to 15

Alloy Composition

Aluminum (Al), % 0
25 to 28
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
2.0 to 2.5
Iron (Fe), % 37.4 to 48.5
0 to 0.1
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.010 to 0.020
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 0.080
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
69.3 to 73