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SAE-AISI 1118 Steel vs. S32615 Stainless Steel

Both SAE-AISI 1118 steel and S32615 stainless steel are iron alloys. They have 53% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1118 steel and the bottom bar is S32615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13
28
Fatigue Strength, MPa 260
180
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 300
400
Tensile Strength: Ultimate (UTS), MPa 490
620
Tensile Strength: Yield (Proof), MPa 410
250

Thermal Properties

Latent Heat of Fusion, J/g 250
370
Maximum Temperature: Mechanical, °C 400
990
Melting Completion (Liquidus), °C 1460
1350
Melting Onset (Solidus), °C 1420
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
24
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 1.4
4.4
Embodied Energy, MJ/kg 19
63
Embodied Water, L/kg 47
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 61
140
Resilience: Unit (Modulus of Resilience), kJ/m3 450
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
23
Strength to Weight: Bending, points 18
21
Thermal Shock Resistance, points 15
15

Alloy Composition

Carbon (C), % 0.14 to 0.2
0 to 0.070
Chromium (Cr), % 0
16.5 to 19.5
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 98 to 98.5
46.4 to 57.9
Manganese (Mn), % 1.3 to 1.6
0 to 2.0
Molybdenum (Mo), % 0
0.3 to 1.5
Nickel (Ni), % 0
19 to 22
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
4.8 to 6.0
Sulfur (S), % 0.080 to 0.13
0 to 0.030