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S32003 Stainless Steel vs. S40930 Stainless Steel

Both S32003 stainless steel and S40930 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 84% 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 S32003 stainless steel and the bottom bar is S40930 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
23
Fatigue Strength, MPa 370
130
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
75
Shear Strength, MPa 480
270
Tensile Strength: Ultimate (UTS), MPa 730
430
Tensile Strength: Yield (Proof), MPa 510
190

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 430
460
Maximum Temperature: Mechanical, °C 1010
710
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 13
10

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 14
8.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.0
2.3
Embodied Energy, MJ/kg 42
32
Embodied Water, L/kg 150
94

Common Calculations

PREN (Pitting Resistance) 29
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
80
Resilience: Unit (Modulus of Resilience), kJ/m3 660
94
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
16
Strength to Weight: Bending, points 23
16
Thermal Diffusivity, mm2/s 4.0
6.7
Thermal Shock Resistance, points 21
16

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 19.5 to 22.5
10.5 to 11.7
Iron (Fe), % 68.2 to 75.9
84.7 to 89.4
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 3.0 to 4.0
0 to 0.5
Niobium (Nb), % 0
0.080 to 0.75
Nitrogen (N), % 0.14 to 0.2
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.020
Titanium (Ti), % 0
0.050 to 0.2