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SAE-AISI 5155 Steel vs. S35000 Stainless Steel

Both SAE-AISI 5155 steel and S35000 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 30 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 5155 steel and the bottom bar is S35000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
2.3 to 14
Fatigue Strength, MPa 260
380 to 520
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 390
740 to 950
Tensile Strength: Ultimate (UTS), MPa 620
1300 to 1570
Tensile Strength: Yield (Proof), MPa 380
660 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 420
900
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 49
16
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
14
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.2
Embodied Energy, MJ/kg 19
44
Embodied Water, L/kg 49
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
28 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 380
1070 to 3360
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
46 to 56
Strength to Weight: Bending, points 21
34 to 38
Thermal Diffusivity, mm2/s 13
4.4
Thermal Shock Resistance, points 20
42 to 51

Alloy Composition

Carbon (C), % 0.51 to 0.59
0.070 to 0.11
Chromium (Cr), % 0.7 to 0.9
16 to 17
Iron (Fe), % 97.2 to 97.9
72.7 to 76.9
Manganese (Mn), % 0.7 to 0.9
0.5 to 1.3
Molybdenum (Mo), % 0
2.5 to 3.2
Nickel (Ni), % 0
4.0 to 5.0
Nitrogen (N), % 0
0.070 to 0.13
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.030