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S82031 Stainless Steel vs. ASTM A372 Grade J Steel

Both S82031 stainless steel and ASTM A372 grade J steel are iron alloys. They have 76% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S82031 stainless steel and the bottom bar is ASTM A372 grade J steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
17 to 22
Fatigue Strength, MPa 490
310 to 570
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 540
410 to 630
Tensile Strength: Ultimate (UTS), MPa 780
650 to 1020
Tensile Strength: Yield (Proof), MPa 570
430 to 850

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 980
420
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
44
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.4
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.5
Embodied Energy, MJ/kg 39
20
Embodied Water, L/kg 150
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
130 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 820
500 to 1930
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
23 to 36
Strength to Weight: Bending, points 24
21 to 29
Thermal Diffusivity, mm2/s 3.9
12
Thermal Shock Resistance, points 22
19 to 30

Alloy Composition

Carbon (C), % 0 to 0.050
0.35 to 0.5
Chromium (Cr), % 19 to 22
0.8 to 1.2
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 68 to 78.3
96.7 to 97.8
Manganese (Mn), % 0 to 2.5
0.75 to 1.1
Molybdenum (Mo), % 0.6 to 1.4
0.15 to 0.25
Nickel (Ni), % 2.0 to 4.0
0
Nitrogen (N), % 0.14 to 0.24
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 0.8
0.15 to 0.35
Sulfur (S), % 0 to 0.0050
0 to 0.010