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SAE-AISI 1030 Steel vs. S32304 Stainless Steel

Both SAE-AISI 1030 steel and S32304 stainless steel are iron alloys. They have 71% 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 1030 steel and the bottom bar is S32304 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 160
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14 to 22
28
Fatigue Strength, MPa 210 to 320
330
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Shear Strength, MPa 330 to 360
440
Tensile Strength: Ultimate (UTS), MPa 530 to 590
670
Tensile Strength: Yield (Proof), MPa 300 to 490
460

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
1050
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
14
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.8
Embodied Energy, MJ/kg 18
40
Embodied Water, L/kg 46
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 100
170
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 650
520
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19 to 21
24
Strength to Weight: Bending, points 18 to 20
22
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 17 to 19
18

Alloy Composition

Carbon (C), % 0.28 to 0.34
0 to 0.030
Chromium (Cr), % 0
21.5 to 24.5
Copper (Cu), % 0
0.050 to 0.6
Iron (Fe), % 98.7 to 99.12
65 to 75.4
Manganese (Mn), % 0.6 to 0.9
0 to 2.5
Molybdenum (Mo), % 0
0.050 to 0.6
Nickel (Ni), % 0
3.0 to 5.5
Nitrogen (N), % 0
0.050 to 0.2
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