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AWS E318 vs. ASTM A369 Grade FP11

Both AWS E318 and ASTM A369 grade FP11 are iron alloys. They have 66% 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 ASTM A369 grade FP11.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
20
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 620
470

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 23
2.9
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.4
1.6
Embodied Energy, MJ/kg 62
21
Embodied Water, L/kg 160
52

Common Calculations

PREN (Pitting Resistance) 27
3.0
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 20
17
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 16
14

Alloy Composition

Carbon (C), % 0 to 0.080
0.050 to 0.15
Chromium (Cr), % 17 to 20
1.0 to 1.5
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 57.6 to 69.5
96.1 to 97.7
Manganese (Mn), % 0.5 to 2.5
0.3 to 0.6
Molybdenum (Mo), % 2.0 to 3.0
0.44 to 0.65
Nickel (Ni), % 11 to 14
0
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0.5 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.025