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ASTM A369 Grade FP5 vs. AWS E3155

Both ASTM A369 grade FP5 and AWS E3155 are iron alloys. They have a modest 36% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP5 and the bottom bar is AWS E3155.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 20
23
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
81
Tensile Strength: Ultimate (UTS), MPa 470
770

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 40
13
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
70
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 1.7
7.7
Embodied Energy, MJ/kg 23
110
Embodied Water, L/kg 69
300

Common Calculations

PREN (Pitting Resistance) 6.8
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
26
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 11
3.3
Thermal Shock Resistance, points 13
20

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.1
Chromium (Cr), % 4.0 to 6.0
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 92.1 to 95.3
23.3 to 36.3
Manganese (Mn), % 0.3 to 0.6
1.0 to 2.5
Molybdenum (Mo), % 0.45 to 0.65
2.5 to 3.5
Nickel (Ni), % 0
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
2.0 to 3.0