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ACI-ASTM CA15M Steel vs. AWS E349

Both ACI-ASTM CA15M steel and AWS E349 are iron alloys. They have 80% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA15M steel and the bottom bar is AWS E349.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 20
29
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 690
770

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
15
Thermal Expansion, µm/m-K 10
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
25
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.1
4.9
Embodied Energy, MJ/kg 29
72
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 15
24
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
27
Strength to Weight: Bending, points 22
24
Thermal Diffusivity, mm2/s 7.2
4.1
Thermal Shock Resistance, points 25
20

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.13
Chromium (Cr), % 11.5 to 14
18 to 21
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 82.1 to 88.4
60.5 to 71.1
Manganese (Mn), % 0 to 1.0
0.5 to 2.5
Molybdenum (Mo), % 0.15 to 1.0
0.35 to 0.65
Nickel (Ni), % 0 to 1.0
8.0 to 10
Niobium (Nb), % 0
0.75 to 1.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.65
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030
Titanium (Ti), % 0
0 to 0.15
Tungsten (W), % 0
1.3 to 1.8
Vanadium (V), % 0
0.1 to 0.3