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ACI-ASTM CA40 Steel vs. AWS E317

Both ACI-ASTM CA40 steel and AWS E317 are iron alloys. They have 76% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA40 steel and the bottom bar is AWS E317.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 10
34
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 910
620

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1500
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
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
22
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
4.3
Embodied Energy, MJ/kg 28
59
Embodied Water, L/kg 100
170

Common Calculations

PREN (Pitting Resistance) 14
31
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 33
22
Strength to Weight: Bending, points 27
20
Thermal Diffusivity, mm2/s 6.7
3.9
Thermal Shock Resistance, points 33
16

Alloy Composition

Carbon (C), % 0.2 to 0.4
0 to 0.080
Chromium (Cr), % 11.5 to 14
18 to 21
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 81.5 to 88.3
56.6 to 66.5
Manganese (Mn), % 0 to 1.0
0.5 to 2.5
Molybdenum (Mo), % 0 to 0.5
3.0 to 4.0
Nickel (Ni), % 0 to 1.0
12 to 14
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030