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S82031 Stainless Steel vs. ASTM A369 Grade FP2

Both S82031 stainless steel and ASTM A369 grade FP2 are iron alloys. They have 75% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S82031 stainless steel and the bottom bar is ASTM A369 grade FP2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
20
Fatigue Strength, MPa 490
160
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 540
270
Tensile Strength: Ultimate (UTS), MPa 780
430
Tensile Strength: Yield (Proof), MPa 570
240

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 980
420
Melting Completion (Liquidus), °C 1430
1470
Melting Onset (Solidus), °C 1390
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
49
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.6
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.8
1.6
Embodied Energy, MJ/kg 39
20
Embodied Water, L/kg 150
50

Common Calculations

PREN (Pitting Resistance) 27
2.5
Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
75
Resilience: Unit (Modulus of Resilience), kJ/m3 820
150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
15
Strength to Weight: Bending, points 24
16
Thermal Diffusivity, mm2/s 3.9
13
Thermal Shock Resistance, points 22
13

Alloy Composition

Carbon (C), % 0 to 0.050
0.1 to 0.2
Chromium (Cr), % 19 to 22
0.5 to 0.81
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 68 to 78.3
97.4 to 98.6
Manganese (Mn), % 0 to 2.5
0.3 to 0.61
Molybdenum (Mo), % 0.6 to 1.4
0.44 to 0.65
Nickel (Ni), % 2.0 to 4.0
0
Nitrogen (N), % 0.14 to 0.24
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.8
0.1 to 0.3
Sulfur (S), % 0 to 0.0050
0 to 0.025