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AWS E318 vs. ASTM A182 Grade F911

Both AWS E318 and ASTM A182 grade F911 are iron alloys. They have 75% 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 AWS E318 and the bottom bar is ASTM A182 grade F911.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
20
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 620
690

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1440
1480
Melting Onset (Solidus), °C 1400
1440
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
26
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
9.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
10

Otherwise Unclassified Properties

Base Metal Price, % relative 23
9.5
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.4
2.8
Embodied Energy, MJ/kg 62
40
Embodied Water, L/kg 160
90

Common Calculations

PREN (Pitting Resistance) 27
15
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
24
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 4.0
6.9
Thermal Shock Resistance, points 16
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.00030 to 0.0060
Carbon (C), % 0 to 0.080
0.090 to 0.13
Chromium (Cr), % 17 to 20
8.5 to 9.5
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 57.6 to 69.5
86.2 to 88.9
Manganese (Mn), % 0.5 to 2.5
0.3 to 0.6
Molybdenum (Mo), % 2.0 to 3.0
0.9 to 1.1
Nickel (Ni), % 11 to 14
0 to 0.4
Niobium (Nb), % 0 to 1.0
0.060 to 0.1
Nitrogen (N), % 0
0.040 to 0.090
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0.1 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0.9 to 1.1
Vanadium (V), % 0
0.18 to 0.25
Zirconium (Zr), % 0
0 to 0.010