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ASTM A369 Grade FPA vs. N08135 Stainless Steel

Both ASTM A369 grade FPA and N08135 stainless steel are iron alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 26 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 ASTM A369 grade FPA and the bottom bar is N08135 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 27
46
Fatigue Strength, MPa 180
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
80
Shear Strength, MPa 240
400
Tensile Strength: Ultimate (UTS), MPa 380
570
Tensile Strength: Yield (Proof), MPa 240
240

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
39
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.4
6.8
Embodied Energy, MJ/kg 18
94
Embodied Water, L/kg 46
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
210
Resilience: Unit (Modulus of Resilience), kJ/m3 150
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 13
19
Strength to Weight: Bending, points 15
19
Thermal Shock Resistance, points 12
13

Alloy Composition

Carbon (C), % 0 to 0.25
0 to 0.030
Chromium (Cr), % 0
20.5 to 23.5
Copper (Cu), % 0
0 to 0.7
Iron (Fe), % 98.3 to 99.63
30.2 to 42.3
Manganese (Mn), % 0.27 to 0.93
0 to 1.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0
33 to 38
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.1 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.035
0 to 0.030
Tungsten (W), % 0
0.2 to 0.8