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ASTM A369 Grade FPA vs. AISI 316N Stainless Steel

Both ASTM A369 grade FPA and AISI 316N stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FPA and the bottom bar is AISI 316N stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
190 to 350
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 27
9.0 to 39
Fatigue Strength, MPa 180
230 to 450
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 240
420 to 690
Tensile Strength: Ultimate (UTS), MPa 380
620 to 1160
Tensile Strength: Yield (Proof), MPa 240
270 to 870

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
940
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
3.9
Embodied Energy, MJ/kg 18
53
Embodied Water, L/kg 46
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
95 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 150
180 to 1880
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 13
22 to 41
Strength to Weight: Bending, points 15
20 to 31
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 12
14 to 26

Alloy Composition

Carbon (C), % 0 to 0.25
0 to 0.080
Chromium (Cr), % 0
16 to 18
Iron (Fe), % 98.3 to 99.63
61.9 to 71.9
Manganese (Mn), % 0.27 to 0.93
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
10 to 14
Nitrogen (N), % 0
0.1 to 0.16
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0.1 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.035
0 to 0.030