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SAE-AISI 1021 Steel vs. AISI 430FSe Stainless Steel

Both SAE-AISI 1021 steel and AISI 430FSe stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1021 steel and the bottom bar is AISI 430FSe stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 150
230
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17 to 27
23
Fatigue Strength, MPa 190 to 300
210
Poisson's Ratio 0.29
0.28
Reduction in Area, % 46 to 54
50
Shear Modulus, GPa 73
77
Shear Strength, MPa 310 to 320
340
Tensile Strength: Ultimate (UTS), MPa 480 to 530
540
Tensile Strength: Yield (Proof), MPa 260 to 450
310

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
870
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
25
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
8.5
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.1
Embodied Energy, MJ/kg 18
30
Embodied Water, L/kg 46
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 530
250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 19
20
Strength to Weight: Bending, points 17 to 18
19
Thermal Diffusivity, mm2/s 14
6.8
Thermal Shock Resistance, points 15 to 17
19

Alloy Composition

Carbon (C), % 0.18 to 0.23
0 to 0.12
Chromium (Cr), % 0
16 to 18
Iron (Fe), % 98.8 to 99.22
79.5 to 84
Manganese (Mn), % 0.6 to 0.9
0 to 1.3
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.060