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S38100 Stainless Steel vs. S32750 Stainless Steel

Both S38100 stainless steel and S32750 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 87% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S38100 stainless steel and the bottom bar is S32750 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
270
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 45
17
Fatigue Strength, MPa 210
360
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
81
Shear Strength, MPa 400
530
Tensile Strength: Ultimate (UTS), MPa 580
860
Tensile Strength: Yield (Proof), MPa 230
590

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 970
1100
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1350
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 20
21
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.8
4.1
Embodied Energy, MJ/kg 54
56
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 18
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
130
Resilience: Unit (Modulus of Resilience), kJ/m3 140
860
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
31
Strength to Weight: Bending, points 20
26
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 13
25

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 17 to 19
24 to 26
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 57.9 to 64
58.1 to 66.8
Manganese (Mn), % 0 to 2.0
0 to 1.2
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 17.5 to 18.5
6.0 to 8.0
Nitrogen (N), % 0
0.24 to 0.32
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 1.5 to 2.5
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.020