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S38815 Stainless Steel vs. SAE-AISI 1108 Steel

Both S38815 stainless steel and SAE-AISI 1108 steel are iron alloys. They have 62% 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 S38815 stainless steel and the bottom bar is SAE-AISI 1108 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
110 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 34
23 to 34
Fatigue Strength, MPa 230
170 to 260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 410
250 to 280
Tensile Strength: Ultimate (UTS), MPa 610
380 to 440
Tensile Strength: Yield (Proof), MPa 290
220 to 360

Thermal Properties

Latent Heat of Fusion, J/g 370
250
Maximum Temperature: Mechanical, °C 860
400
Melting Completion (Liquidus), °C 1360
1460
Melting Onset (Solidus), °C 1310
1420
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 19
1.8
Density, g/cm3 7.5
7.9
Embodied Carbon, kg CO2/kg material 3.8
1.4
Embodied Energy, MJ/kg 54
18
Embodied Water, L/kg 140
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
95 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 220
130 to 340
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
13 to 16
Strength to Weight: Bending, points 21
15 to 16
Thermal Shock Resistance, points 15
12 to 14

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0.080 to 0.13
Chromium (Cr), % 13 to 15
0
Copper (Cu), % 0.75 to 1.5
0
Iron (Fe), % 56.1 to 67
98.9 to 99.24
Manganese (Mn), % 0 to 2.0
0.6 to 0.8
Molybdenum (Mo), % 0.75 to 1.5
0
Nickel (Ni), % 13 to 17
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 5.5 to 6.5
0
Sulfur (S), % 0 to 0.020
0.080 to 0.13