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AISI 446 Stainless Steel vs. SAE-AISI 1146 Steel

Both AISI 446 stainless steel and SAE-AISI 1146 steel are iron alloys. They have 74% of their average alloy composition in common. There are 32 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 AISI 446 stainless steel and the bottom bar is SAE-AISI 1146 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190 to 200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
13 to 17
Fatigue Strength, MPa 200
240 to 400
Poisson's Ratio 0.27
0.29
Reduction in Area, % 50
40 to 45
Shear Modulus, GPa 79
72
Shear Strength, MPa 360
410 to 440
Tensile Strength: Ultimate (UTS), MPa 570
670 to 730
Tensile Strength: Yield (Proof), MPa 300
360 to 630

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1180
400
Melting Completion (Liquidus), °C 1510
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
51
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.4
1.4
Embodied Energy, MJ/kg 35
18
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
93 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 230
340 to 1050
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 21
24 to 26
Strength to Weight: Bending, points 20
22 to 23
Thermal Diffusivity, mm2/s 4.6
14
Thermal Shock Resistance, points 19
20 to 22

Alloy Composition

Carbon (C), % 0 to 0.2
0.42 to 0.49
Chromium (Cr), % 23 to 27
0
Iron (Fe), % 69.2 to 77
98.3 to 98.8
Manganese (Mn), % 0 to 1.5
0.7 to 1.0
Nickel (Ni), % 0 to 0.75
0
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0.080 to 0.13