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ACI-ASTM CK20 Steel vs. SAE-AISI 1065 Steel

Both ACI-ASTM CK20 steel and SAE-AISI 1065 steel are iron alloys. They have 53% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 1065 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
210 to 230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 37
11 to 14
Fatigue Strength, MPa 220
270 to 340
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
72
Tensile Strength: Ultimate (UTS), MPa 530
710 to 780
Tensile Strength: Yield (Proof), MPa 260
430 to 550

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
51
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
11
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
12

Otherwise Unclassified Properties

Base Metal Price, % relative 25
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.4
1.4
Embodied Energy, MJ/kg 62
19
Embodied Water, L/kg 190
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
74 to 90
Resilience: Unit (Modulus of Resilience), kJ/m3 170
490 to 820
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
25 to 28
Strength to Weight: Bending, points 19
23 to 24
Thermal Diffusivity, mm2/s 3.7
14
Thermal Shock Resistance, points 13
25 to 27

Alloy Composition

Carbon (C), % 0 to 0.2
0.6 to 0.7
Chromium (Cr), % 23 to 27
0
Iron (Fe), % 46.7 to 58
98.3 to 98.8
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 19 to 22
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0
Sulfur (S), % 0 to 0.040
0 to 0.050