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S32304 Stainless Steel vs. SAE-AISI 1144 Steel

Both S32304 stainless steel and SAE-AISI 1144 steel are iron alloys. They have 72% 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 S32304 stainless steel and the bottom bar is SAE-AISI 1144 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
220 to 230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
11 to 17
Fatigue Strength, MPa 330
280 to 430
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
72
Shear Strength, MPa 440
460 to 510
Tensile Strength: Ultimate (UTS), MPa 670
750 to 840
Tensile Strength: Yield (Proof), MPa 460
420 to 690

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1050
400
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
51
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 14
1.9
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.4
Embodied Energy, MJ/kg 40
19
Embodied Water, L/kg 160
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
91 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 520
480 to 1290
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
27 to 30
Strength to Weight: Bending, points 22
23 to 25
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 18
22 to 24

Alloy Composition

Carbon (C), % 0 to 0.030
0.4 to 0.48
Chromium (Cr), % 21.5 to 24.5
0
Copper (Cu), % 0.050 to 0.6
0
Iron (Fe), % 65 to 75.4
97.5 to 98
Manganese (Mn), % 0 to 2.5
1.4 to 1.7
Molybdenum (Mo), % 0.050 to 0.6
0
Nickel (Ni), % 3.0 to 5.5
0
Nitrogen (N), % 0.050 to 0.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0.24 to 0.33