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SAE-AISI 1146 Steel vs. S44535 Stainless Steel

Both SAE-AISI 1146 steel and S44535 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 31 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 SAE-AISI 1146 steel and the bottom bar is S44535 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 200
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 13 to 17
28
Fatigue Strength, MPa 240 to 400
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
78
Shear Strength, MPa 410 to 440
290
Tensile Strength: Ultimate (UTS), MPa 670 to 730
450
Tensile Strength: Yield (Proof), MPa 360 to 630
290

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
1000
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
21
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
11
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.4
Embodied Energy, MJ/kg 18
34
Embodied Water, L/kg 46
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93 to 97
110
Resilience: Unit (Modulus of Resilience), kJ/m3 340 to 1050
200
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 26
16
Strength to Weight: Bending, points 22 to 23
17
Thermal Diffusivity, mm2/s 14
5.6
Thermal Shock Resistance, points 20 to 22
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Carbon (C), % 0.42 to 0.49
0 to 0.030
Chromium (Cr), % 0
20 to 24
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 98.3 to 98.8
73.2 to 79.6
Lanthanum (La), % 0
0.040 to 0.2
Manganese (Mn), % 0.7 to 1.0
0.3 to 0.8
Phosphorus (P), % 0 to 0.040
0 to 0.050
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0.080 to 0.13
0 to 0.020
Titanium (Ti), % 0
0.030 to 0.2