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ASTM A387 Grade 11 Steel vs. S82031 Stainless Steel

Both ASTM A387 grade 11 steel and S82031 stainless steel are iron alloys. They have 76% 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 ASTM A387 grade 11 steel and the bottom bar is S82031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
39
Fatigue Strength, MPa 200 to 250
490
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 320 to 390
540
Tensile Strength: Ultimate (UTS), MPa 500 to 600
780
Tensile Strength: Yield (Proof), MPa 270 to 350
570

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 430
980
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.6
2.8
Embodied Energy, MJ/kg 21
39
Embodied Water, L/kg 53
150

Common Calculations

PREN (Pitting Resistance) 3.1
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 130
280
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 320
820
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 21
28
Strength to Weight: Bending, points 18 to 20
24
Thermal Diffusivity, mm2/s 11
3.9
Thermal Shock Resistance, points 15 to 18
22

Alloy Composition

Carbon (C), % 0.050 to 0.17
0 to 0.050
Chromium (Cr), % 1.0 to 1.5
19 to 22
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 96.2 to 97.6
68 to 78.3
Manganese (Mn), % 0.4 to 0.65
0 to 2.5
Molybdenum (Mo), % 0.45 to 0.65
0.6 to 1.4
Nickel (Ni), % 0
2.0 to 4.0
Nitrogen (N), % 0
0.14 to 0.24
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.5 to 0.8
0 to 0.8
Sulfur (S), % 0 to 0.025
0 to 0.0050