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S31254 Stainless Steel vs. S32003 Stainless Steel

Both S31254 stainless steel and S32003 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 80% 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 S31254 stainless steel and the bottom bar is S32003 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
28
Fatigue Strength, MPa 290
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 80
79
Shear Strength, MPa 490
480
Tensile Strength: Ultimate (UTS), MPa 720
730
Tensile Strength: Yield (Proof), MPa 330
510

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
430
Maximum Temperature: Mechanical, °C 1090
1010
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 28
14
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.5
3.0
Embodied Energy, MJ/kg 74
42
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 44
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
180
Resilience: Unit (Modulus of Resilience), kJ/m3 270
660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25
26
Strength to Weight: Bending, points 22
23
Thermal Diffusivity, mm2/s 3.8
4.0
Thermal Shock Resistance, points 15
21

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 19.5 to 20.5
19.5 to 22.5
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 51.4 to 56.3
68.2 to 75.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 6.0 to 6.5
1.5 to 2.0
Nickel (Ni), % 17.5 to 18.5
3.0 to 4.0
Nitrogen (N), % 0.18 to 0.22
0.14 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.020