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SAE-AISI 1038 Steel vs. S43932 Stainless Steel

Both SAE-AISI 1038 steel and S43932 stainless steel are iron alloys. They have 80% 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 1038 steel and the bottom bar is S43932 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 180
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14 to 20
25
Fatigue Strength, MPa 220 to 350
160
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 370 to 390
300
Tensile Strength: Ultimate (UTS), MPa 590 to 640
460
Tensile Strength: Yield (Proof), MPa 320 to 540
230

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
890
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 51
23
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
12
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.7
Embodied Energy, MJ/kg 18
40
Embodied Water, L/kg 46
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 100
96
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 790
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 23
17
Strength to Weight: Bending, points 20 to 21
17
Thermal Diffusivity, mm2/s 14
6.3
Thermal Shock Resistance, points 19 to 20
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Carbon (C), % 0.35 to 0.42
0 to 0.030
Chromium (Cr), % 0
17 to 19
Iron (Fe), % 98.6 to 99.05
76.7 to 83
Manganese (Mn), % 0.6 to 0.9
0 to 1.0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.2 to 0.75
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.75