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S31254 Stainless Steel vs. SAE-AISI 5147 Steel

Both S31254 stainless steel and SAE-AISI 5147 steel are iron alloys. Both are furnished in the annealed condition. They have 56% of their average alloy composition in common. There are 31 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 S31254 stainless steel and the bottom bar is SAE-AISI 5147 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
20
Fatigue Strength, MPa 290
250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Shear Strength, MPa 490
370
Tensile Strength: Ultimate (UTS), MPa 720
600
Tensile Strength: Yield (Proof), MPa 330
360

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1090
420
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 14
46
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 28
2.2
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.5
1.5
Embodied Energy, MJ/kg 74
19
Embodied Water, L/kg 190
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
110
Resilience: Unit (Modulus of Resilience), kJ/m3 270
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25
21
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 3.8
12
Thermal Shock Resistance, points 15
18

Alloy Composition

Carbon (C), % 0 to 0.020
0.46 to 0.51
Chromium (Cr), % 19.5 to 20.5
0.85 to 1.2
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 51.4 to 56.3
97 to 97.8
Manganese (Mn), % 0 to 1.0
0.7 to 1.0
Molybdenum (Mo), % 6.0 to 6.5
0
Nickel (Ni), % 17.5 to 18.5
0
Nitrogen (N), % 0.18 to 0.22
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.8
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.040