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ACI-ASTM CK20 Steel vs. EN 1.3555 Steel

Both ACI-ASTM CK20 steel and EN 1.3555 steel are iron alloys. They have 61% of their average alloy composition in common. There are 24 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 CK20 steel and the bottom bar is EN 1.3555 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 530
770

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Maximum Temperature: Mechanical, °C 1100
540
Melting Completion (Liquidus), °C 1400
1500
Melting Onset (Solidus), °C 1430
1450
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
11

Otherwise Unclassified Properties

Base Metal Price, % relative 25
11
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.4
5.6
Embodied Energy, MJ/kg 62
81
Embodied Water, L/kg 190
90

Common Calculations

PREN (Pitting Resistance) 26
18
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
27
Strength to Weight: Bending, points 19
23
Thermal Shock Resistance, points 13
22

Alloy Composition

Carbon (C), % 0 to 0.2
0.1 to 0.15
Chromium (Cr), % 23 to 27
3.9 to 4.3
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 46.7 to 58
85.4 to 87.7
Manganese (Mn), % 0 to 2.0
0.15 to 0.35
Molybdenum (Mo), % 0 to 0.5
4.0 to 4.5
Nickel (Ni), % 19 to 22
3.2 to 3.6
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 2.0
0.1 to 0.25
Sulfur (S), % 0 to 0.040
0 to 0.010
Tungsten (W), % 0
0 to 0.15
Vanadium (V), % 0
1.0 to 1.3