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SAE-AISI 1074 Steel vs. S32003 Stainless Steel

Both SAE-AISI 1074 steel and S32003 stainless steel are iron alloys. They have 73% 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 SAE-AISI 1074 steel and the bottom bar is S32003 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 14
28
Fatigue Strength, MPa 290 to 350
370
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
79
Shear Strength, MPa 440 to 490
480
Tensile Strength: Ultimate (UTS), MPa 740 to 820
730
Tensile Strength: Yield (Proof), MPa 450 to 570
510

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
1010
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
15
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
14
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.0
Embodied Energy, MJ/kg 19
42
Embodied Water, L/kg 46
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
180
Resilience: Unit (Modulus of Resilience), kJ/m3 550 to 860
660
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 29
26
Strength to Weight: Bending, points 23 to 25
23
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 24 to 26
21

Alloy Composition

Carbon (C), % 0.7 to 0.8
0 to 0.030
Chromium (Cr), % 0
19.5 to 22.5
Iron (Fe), % 98.3 to 98.8
68.2 to 75.9
Manganese (Mn), % 0.5 to 0.8
0 to 2.0
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 0
3.0 to 4.0
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.020