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ACI-ASTM CK20 Steel vs. AWS E410NiMo

Both ACI-ASTM CK20 steel and AWS E410NiMo are iron alloys. They have 70% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CK20 steel and the bottom bar is AWS E410NiMo.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 37
17
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 530
850

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 14
24
Thermal Expansion, µm/m-K 15
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 25
10
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.4
2.4
Embodied Energy, MJ/kg 62
34
Embodied Water, L/kg 190
110

Common Calculations

PREN (Pitting Resistance) 26
14
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
30
Strength to Weight: Bending, points 19
26
Thermal Diffusivity, mm2/s 3.7
6.5
Thermal Shock Resistance, points 13
23

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.060
Chromium (Cr), % 23 to 27
11 to 12.5
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 46.7 to 58
79 to 84.6
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0.4 to 0.7
Nickel (Ni), % 19 to 22
4.0 to 5.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 0.9
Sulfur (S), % 0 to 0.040
0 to 0.030