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S32750 Stainless Steel vs. AISI 403 Stainless Steel

Both S32750 stainless steel and AISI 403 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 33 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 S32750 stainless steel and the bottom bar is AISI 403 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
190 to 240
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 17
16 to 25
Fatigue Strength, MPa 360
200 to 340
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
76
Shear Strength, MPa 530
340 to 480
Tensile Strength: Ultimate (UTS), MPa 860
530 to 780
Tensile Strength: Yield (Proof), MPa 590
280 to 570

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 1100
740
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
28
Thermal Expansion, µm/m-K 12
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 21
6.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.1
1.9
Embodied Energy, MJ/kg 56
27
Embodied Water, L/kg 180
99

Common Calculations

PREN (Pitting Resistance) 43
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 860
210 to 840
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31
19 to 28
Strength to Weight: Bending, points 26
19 to 24
Thermal Diffusivity, mm2/s 4.0
7.6
Thermal Shock Resistance, points 25
20 to 29

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 24 to 26
11.5 to 13
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 58.1 to 66.8
84.7 to 88.5
Manganese (Mn), % 0 to 1.2
0 to 1.0
Molybdenum (Mo), % 3.0 to 5.0
0
Nickel (Ni), % 6.0 to 8.0
0 to 0.6
Nitrogen (N), % 0.24 to 0.32
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.030