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SAE-AISI 1108 Steel vs. S44535 Stainless Steel

Both SAE-AISI 1108 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 1108 steel and the bottom bar is S44535 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 140
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23 to 34
28
Fatigue Strength, MPa 170 to 260
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
78
Shear Strength, MPa 250 to 280
290
Tensile Strength: Ultimate (UTS), MPa 380 to 440
450
Tensile Strength: Yield (Proof), MPa 220 to 360
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 52
21
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
11
Density, g/cm3 7.9
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 95 to 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 340
200
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 13 to 16
16
Strength to Weight: Bending, points 15 to 16
17
Thermal Diffusivity, mm2/s 14
5.6
Thermal Shock Resistance, points 12 to 14
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Carbon (C), % 0.080 to 0.13
0 to 0.030
Chromium (Cr), % 0
20 to 24
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 98.9 to 99.24
73.2 to 79.6
Lanthanum (La), % 0
0.040 to 0.2
Manganese (Mn), % 0.6 to 0.8
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