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ACI-ASTM CB7Cu-1 Steel vs. AWS E33-31

Both ACI-ASTM CB7Cu-1 steel and AWS E33-31 are iron alloys. They have 52% 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 ACI-ASTM CB7Cu-1 steel and the bottom bar is AWS E33-31.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 5.7 to 11
29
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
81
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
810

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Melting Completion (Liquidus), °C 1430
1380
Melting Onset (Solidus), °C 1500
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 11
14

Otherwise Unclassified Properties

Base Metal Price, % relative 13
36
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.6
6.0
Embodied Energy, MJ/kg 38
86
Embodied Water, L/kg 130
260

Common Calculations

PREN (Pitting Resistance) 17
44
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 34 to 48
28
Strength to Weight: Bending, points 28 to 35
24
Thermal Shock Resistance, points 32 to 45
19

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 15.5 to 17.7
31 to 35
Copper (Cu), % 2.5 to 3.2
0.4 to 0.8
Iron (Fe), % 72.3 to 78.4
24.7 to 34.8
Manganese (Mn), % 0 to 0.7
2.5 to 4.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 3.6 to 4.6
30 to 32
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0.3 to 0.5
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.9
Sulfur (S), % 0 to 0.030
0 to 0.010