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AISI 446 Stainless Steel vs. SAE-AISI 1042 Steel

Both AISI 446 stainless steel and SAE-AISI 1042 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 1042 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
180 to 200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
14 to 18
Fatigue Strength, MPa 200
230 to 370
Poisson's Ratio 0.27
0.29
Reduction in Area, % 50
39 to 50
Shear Modulus, GPa 79
73
Shear Strength, MPa 360
380 to 420
Tensile Strength: Ultimate (UTS), MPa 570
620 to 700
Tensile Strength: Yield (Proof), MPa 300
340 to 580

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
52
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.0
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
87 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 230
320 to 900
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 21
22 to 25
Strength to Weight: Bending, points 20
21 to 22
Thermal Diffusivity, mm2/s 4.6
14
Thermal Shock Resistance, points 19
20 to 22

Alloy Composition

Carbon (C), % 0 to 0.2
0.4 to 0.47
Chromium (Cr), % 23 to 27
0
Iron (Fe), % 69.2 to 77
98.5 to 99
Manganese (Mn), % 0 to 1.5
0.6 to 0.9
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 to 0.050