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AWS E33-31 vs. ACI-ASTM CT15C Steel

Both AWS E33-31 and ACI-ASTM CT15C steel are iron alloys. They have 82% 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 E33-31 and the bottom bar is ACI-ASTM CT15C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 29
23
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
76
Tensile Strength: Ultimate (UTS), MPa 810
500

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Melting Completion (Liquidus), °C 1380
1410
Melting Onset (Solidus), °C 1330
1360
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 14
16

Otherwise Unclassified Properties

Base Metal Price, % relative 36
36
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 6.0
6.1
Embodied Energy, MJ/kg 86
88
Embodied Water, L/kg 260
190

Common Calculations

PREN (Pitting Resistance) 44
20
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
17
Strength to Weight: Bending, points 24
17
Thermal Shock Resistance, points 19
12

Alloy Composition

Carbon (C), % 0 to 0.030
0.050 to 0.15
Chromium (Cr), % 31 to 35
19 to 21
Copper (Cu), % 0.4 to 0.8
0
Iron (Fe), % 24.7 to 34.8
40.3 to 49.2
Manganese (Mn), % 2.5 to 4.0
0.15 to 1.5
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 30 to 32
31 to 34
Niobium (Nb), % 0
0.5 to 1.5
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.9
0.15 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.030