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SAE-AISI S1 Steel vs. AISI 314 Stainless Steel

Both SAE-AISI S1 steel and AISI 314 stainless steel are iron alloys. They have 54% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S1 steel and the bottom bar is AISI 314 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 690 to 1840
590

Thermal Properties

Latent Heat of Fusion, J/g 260
330
Melting Completion (Liquidus), °C 1500
1380
Melting Onset (Solidus), °C 1450
1340
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 41
15
Thermal Expansion, µm/m-K 12
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
25
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 2.6
4.3
Embodied Energy, MJ/kg 37
62
Embodied Water, L/kg 56
190

Common Calculations

PREN (Pitting Resistance) 5.9
25
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 64
21
Strength to Weight: Bending, points 22 to 42
20
Thermal Diffusivity, mm2/s 11
3.9
Thermal Shock Resistance, points 21 to 56
14

Alloy Composition

Carbon (C), % 0.4 to 0.55
0 to 0.25
Chromium (Cr), % 1.0 to 1.8
23 to 26
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 91.6 to 96.7
46.7 to 56.5
Manganese (Mn), % 0.1 to 0.4
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.3
19 to 22
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.15 to 1.2
1.5 to 3.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.5 to 3.0
0
Vanadium (V), % 0.15 to 0.3
0