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ACI-ASTM CH20 Steel vs. K93500 Alloy

Both ACI-ASTM CH20 steel and K93500 alloy are iron alloys. They have 74% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CH20 steel and the bottom bar is K93500 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.27
0.3
Shear Modulus, GPa 78
72
Tensile Strength: Ultimate (UTS), MPa 610
490 to 810

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1430
1380
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 20
30
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 3.7
4.7
Embodied Energy, MJ/kg 53
65
Embodied Water, L/kg 180
130

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 22
17 to 27
Strength to Weight: Bending, points 21
17 to 23
Thermal Shock Resistance, points 15
15 to 25

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0 to 0.2
0 to 0.050
Chromium (Cr), % 22 to 26
0 to 0.25
Cobalt (Co), % 0
5.0
Iron (Fe), % 54.7 to 66
61.4 to 63
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 1.5
0 to 0.6
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 12 to 15
32
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 2.0
0 to 0.25
Sulfur (S), % 0 to 0.040
0 to 0.015
Titanium (Ti), % 0
0 to 0.1
Zirconium (Zr), % 0
0 to 0.1