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AISI 301 Stainless Steel vs. SAE-AISI 5155 Steel

Both AISI 301 stainless steel and SAE-AISI 5155 steel are iron alloys. They have 76% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI 301 stainless steel and the bottom bar is SAE-AISI 5155 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 440
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 7.4 to 46
21
Fatigue Strength, MPa 210 to 600
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 410 to 860
390
Tensile Strength: Ultimate (UTS), MPa 590 to 1460
620
Tensile Strength: Yield (Proof), MPa 230 to 1080
380

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 840
420
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
49
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.4
Embodied Energy, MJ/kg 39
19
Embodied Water, L/kg 130
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99 to 300
110
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 2970
380
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 52
22
Strength to Weight: Bending, points 20 to 37
21
Thermal Diffusivity, mm2/s 4.2
13
Thermal Shock Resistance, points 12 to 31
20

Alloy Composition

Carbon (C), % 0 to 0.15
0.51 to 0.59
Chromium (Cr), % 16 to 18
0.7 to 0.9
Iron (Fe), % 70.7 to 78
97.2 to 97.9
Manganese (Mn), % 0 to 2.0
0.7 to 0.9
Nickel (Ni), % 6.0 to 8.0
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040