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AWS E310Nb vs. ACI-ASTM CH20 Steel

Both AWS E310Nb and ACI-ASTM CH20 steel are iron alloys. They have 88% 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 AWS E310Nb and the bottom bar is ACI-ASTM CH20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 29
38
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 620
610

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Melting Completion (Liquidus), °C 1410
1410
Melting Onset (Solidus), °C 1370
1430
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 14
14
Thermal Expansion, µm/m-K 14
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
20
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.3
3.7
Embodied Energy, MJ/kg 76
53
Embodied Water, L/kg 200
180

Common Calculations

PREN (Pitting Resistance) 28
25
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
22
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 3.8
3.7
Thermal Shock Resistance, points 15
15

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.2
Chromium (Cr), % 25 to 28
22 to 26
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 44.1 to 53.3
54.7 to 66
Manganese (Mn), % 1.0 to 2.5
0 to 1.5
Molybdenum (Mo), % 0 to 0.75
0 to 0.5
Nickel (Ni), % 20 to 22
12 to 15
Niobium (Nb), % 0.7 to 1.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040