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S32615 Stainless Steel vs. SAE-AISI 4161 Steel

Both S32615 stainless steel and SAE-AISI 4161 steel are iron alloys. Both are furnished in the annealed condition. They have 54% 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 S32615 stainless steel and the bottom bar is SAE-AISI 4161 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 28
20
Fatigue Strength, MPa 180
290
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 400
420
Tensile Strength: Ultimate (UTS), MPa 620
680
Tensile Strength: Yield (Proof), MPa 250
410

Thermal Properties

Latent Heat of Fusion, J/g 370
250
Maximum Temperature: Mechanical, °C 990
420
Melting Completion (Liquidus), °C 1350
1460
Melting Onset (Solidus), °C 1310
1410
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
2.5
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 4.4
1.5
Embodied Energy, MJ/kg 63
20
Embodied Water, L/kg 170
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
120
Resilience: Unit (Modulus of Resilience), kJ/m3 160
460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
24
Strength to Weight: Bending, points 21
22
Thermal Shock Resistance, points 15
22

Alloy Composition

Carbon (C), % 0 to 0.070
0.56 to 0.64
Chromium (Cr), % 16.5 to 19.5
0.7 to 0.9
Copper (Cu), % 1.5 to 2.5
0
Iron (Fe), % 46.4 to 57.9
96.7 to 97.6
Manganese (Mn), % 0 to 2.0
0.75 to 1.0
Molybdenum (Mo), % 0.3 to 1.5
0.25 to 0.35
Nickel (Ni), % 19 to 22
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 4.8 to 6.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040