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ACI-ASTM CK20 Steel vs. SAE-AISI M62 Steel

Both ACI-ASTM CK20 steel and SAE-AISI M62 steel are iron alloys. They have 57% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CK20 steel and the bottom bar is SAE-AISI M62 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
79
Tensile Strength: Ultimate (UTS), MPa 530
830 to 2440

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Melting Completion (Liquidus), °C 1400
1650
Melting Onset (Solidus), °C 1430
1600
Specific Heat Capacity, J/kg-K 480
430
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 25
30
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 4.4
10
Embodied Energy, MJ/kg 62
150
Embodied Water, L/kg 190
110

Common Calculations

PREN (Pitting Resistance) 26
49
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 19
27 to 80
Strength to Weight: Bending, points 19
23 to 47
Thermal Shock Resistance, points 13
24 to 71

Alloy Composition

Carbon (C), % 0 to 0.2
1.3 to 1.4
Chromium (Cr), % 23 to 27
3.5 to 4.0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 46.7 to 58
73.6 to 77.4
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 0 to 0.5
10 to 11
Nickel (Ni), % 19 to 22
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0.15 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
5.8 to 6.5
Vanadium (V), % 0
1.8 to 2.1