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S38815 Stainless Steel vs. S32001 Stainless Steel

Both S38815 stainless steel and S32001 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 80% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S38815 stainless steel and the bottom bar is S32001 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 34
28
Fatigue Strength, MPa 230
370
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
78
Shear Strength, MPa 410
450
Tensile Strength: Ultimate (UTS), MPa 610
690
Tensile Strength: Yield (Proof), MPa 290
510

Thermal Properties

Latent Heat of Fusion, J/g 370
290
Maximum Temperature: Corrosion, °C 400
430
Maximum Temperature: Mechanical, °C 860
970
Melting Completion (Liquidus), °C 1360
1420
Melting Onset (Solidus), °C 1310
1370
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 19
12
Density, g/cm3 7.5
7.7
Embodied Carbon, kg CO2/kg material 3.8
2.6
Embodied Energy, MJ/kg 54
37
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 18
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
180
Resilience: Unit (Modulus of Resilience), kJ/m3 220
660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
25
Strength to Weight: Bending, points 21
23
Thermal Shock Resistance, points 15
19

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 13 to 15
19.5 to 21.5
Copper (Cu), % 0.75 to 1.5
0 to 1.0
Iron (Fe), % 56.1 to 67
66.6 to 75.5
Manganese (Mn), % 0 to 2.0
4.0 to 6.0
Molybdenum (Mo), % 0.75 to 1.5
0 to 0.6
Nickel (Ni), % 13 to 17
1.0 to 3.0
Nitrogen (N), % 0
0.050 to 0.17
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 5.5 to 6.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030