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AWS E320LR vs. ACI-ASTM CE8MN Steel

Both AWS E320LR and ACI-ASTM CE8MN steel are iron alloys. They have 70% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AWS E320LR and the bottom bar is ACI-ASTM CE8MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
29
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 580
750

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 14
13

Otherwise Unclassified Properties

Base Metal Price, % relative 36
21
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 6.2
4.2
Embodied Energy, MJ/kg 87
58
Embodied Water, L/kg 220
180

Common Calculations

PREN (Pitting Resistance) 28
40
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
27
Strength to Weight: Bending, points 19
23
Thermal Shock Resistance, points 15
21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 19 to 21
22.5 to 25.5
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 32.7 to 42.5
56 to 66.4
Manganese (Mn), % 1.5 to 2.5
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
3.0 to 4.5
Nickel (Ni), % 32 to 36
8.0 to 11
Niobium (Nb), % 0 to 0.4
0
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.3
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.040