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S42030 Stainless Steel vs. SAE-AISI 1046 Steel

Both S42030 stainless steel and SAE-AISI 1046 steel are iron alloys. They have 82% of their average alloy composition in common. There are 30 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 S42030 stainless steel and the bottom bar is SAE-AISI 1046 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 16
14 to 17
Fatigue Strength, MPa 250
240 to 390
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Shear Strength, MPa 410
410 to 450
Tensile Strength: Ultimate (UTS), MPa 670
660 to 740
Tensile Strength: Yield (Proof), MPa 410
370 to 610

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 780
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 28
51
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
11
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.5
1.4
Embodied Energy, MJ/kg 34
18
Embodied Water, L/kg 110
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
91 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 440
360 to 990
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
23 to 26
Strength to Weight: Bending, points 22
22 to 23
Thermal Diffusivity, mm2/s 7.7
14
Thermal Shock Resistance, points 24
23 to 25

Alloy Composition

Carbon (C), % 0 to 0.3
0.43 to 0.5
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 2.0 to 3.0
0
Iron (Fe), % 77.6 to 85
98.4 to 98.9
Manganese (Mn), % 0 to 1.0
0.7 to 1.0
Molybdenum (Mo), % 1.0 to 3.0
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 to 0.050