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SAE-AISI 1046 Steel vs. AISI 202 Stainless Steel

Both SAE-AISI 1046 steel and AISI 202 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1046 steel and the bottom bar is AISI 202 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 210
210 to 300
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14 to 17
14 to 45
Fatigue Strength, MPa 240 to 390
290 to 330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 410 to 450
490 to 590
Tensile Strength: Ultimate (UTS), MPa 660 to 740
700 to 980
Tensile Strength: Yield (Proof), MPa 370 to 610
310 to 580

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
910
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
13
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
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 95
120 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 990
250 to 840
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 26
25 to 35
Strength to Weight: Bending, points 22 to 23
23 to 29
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 23 to 25
15 to 21

Alloy Composition

Carbon (C), % 0.43 to 0.5
0 to 0.15
Chromium (Cr), % 0
17 to 19
Iron (Fe), % 98.4 to 98.9
63.5 to 71.5
Manganese (Mn), % 0.7 to 1.0
7.5 to 10
Nickel (Ni), % 0
4.0 to 6.0
Nitrogen (N), % 0
0 to 0.25
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 0.030