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S32615 Stainless Steel vs. SAE-AISI 4320 Steel

Both S32615 stainless steel and SAE-AISI 4320 steel are iron alloys. They have 56% 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 4320 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
160 to 240
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 28
21 to 29
Fatigue Strength, MPa 180
320
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 400
370 to 500
Tensile Strength: Ultimate (UTS), MPa 620
570 to 790
Tensile Strength: Yield (Proof), MPa 250
430 to 460

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
1420
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 15
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
3.4
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 4.4
1.7
Embodied Energy, MJ/kg 63
22
Embodied Water, L/kg 170
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 160
480 to 560
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
20 to 28
Strength to Weight: Bending, points 21
19 to 24
Thermal Shock Resistance, points 15
19 to 27

Alloy Composition

Carbon (C), % 0 to 0.070
0.17 to 0.22
Chromium (Cr), % 16.5 to 19.5
0.4 to 0.6
Copper (Cu), % 1.5 to 2.5
0
Iron (Fe), % 46.4 to 57.9
95.8 to 97
Manganese (Mn), % 0 to 2.0
0.45 to 0.65
Molybdenum (Mo), % 0.3 to 1.5
0.2 to 0.3
Nickel (Ni), % 19 to 22
1.7 to 2.0
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