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AWS E320LR vs. ACI-ASTM CN3M Steel

Both AWS E320LR and ACI-ASTM CN3M steel are iron alloys. They have 86% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS E320LR and the bottom bar is ACI-ASTM CN3M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
34
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 580
500

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 14
16

Otherwise Unclassified Properties

Base Metal Price, % relative 36
31
Density, g/cm3 8.2
8.1
Embodied Carbon, kg CO2/kg material 6.2
5.9
Embodied Energy, MJ/kg 87
80
Embodied Water, L/kg 220
200

Common Calculations

PREN (Pitting Resistance) 28
38
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
17
Strength to Weight: Bending, points 19
17
Thermal Shock Resistance, points 15
11

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 19 to 21
20 to 22
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 32.7 to 42.5
42.4 to 52.5
Manganese (Mn), % 1.5 to 2.5
0 to 2.0
Molybdenum (Mo), % 2.0 to 3.0
4.5 to 5.5
Nickel (Ni), % 32 to 36
23 to 27
Niobium (Nb), % 0 to 0.4
0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030