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AWS E385 vs. ACI-ASTM CB7Cu-2 Steel

Both AWS E385 and ACI-ASTM CB7Cu-2 steel are iron alloys. They have 68% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AWS E385 and the bottom bar is ACI-ASTM CB7Cu-2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
5.7 to 11
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
75
Tensile Strength: Ultimate (UTS), MPa 580
960 to 1350

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 14
17
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 31
13
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.8
2.6
Embodied Energy, MJ/kg 79
38
Embodied Water, L/kg 200
130

Common Calculations

PREN (Pitting Resistance) 36
15
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
34 to 48
Strength to Weight: Bending, points 19
28 to 35
Thermal Diffusivity, mm2/s 3.6
4.6
Thermal Shock Resistance, points 15
32 to 45

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.070
Chromium (Cr), % 19.5 to 21.5
14 to 15.5
Copper (Cu), % 1.2 to 2.0
2.5 to 3.2
Iron (Fe), % 41.8 to 50.1
73.6 to 79
Manganese (Mn), % 1.0 to 2.5
0 to 0.7
Molybdenum (Mo), % 4.2 to 5.2
0
Nickel (Ni), % 24 to 26
4.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.9
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030