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AWS E318 vs. ACI-ASTM CF16F Steel

Both AWS E318 and ACI-ASTM CF16F steel are iron alloys. They have a moderately high 95% 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 AWS E318 and the bottom bar is ACI-ASTM CF16F steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 29
50
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 620
530

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 14
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
18
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.4
3.4
Embodied Energy, MJ/kg 62
47
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 27
22
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
19
Strength to Weight: Bending, points 20
19
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 16
12

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.16
Chromium (Cr), % 17 to 20
18 to 21
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 57.6 to 69.5
61.3 to 72.8
Manganese (Mn), % 0.5 to 2.5
0 to 1.5
Molybdenum (Mo), % 2.0 to 3.0
0 to 1.5
Nickel (Ni), % 11 to 14
9.0 to 12
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.17
Selenium (Se), % 0
0.2 to 0.35
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040