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AISI 403 Stainless Steel vs. S31100 Stainless Steel

Both AISI 403 stainless steel and S31100 stainless steel are iron alloys. 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 AISI 403 stainless steel and the bottom bar is S31100 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 240
270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16 to 25
4.5
Fatigue Strength, MPa 200 to 340
330
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Shear Strength, MPa 340 to 480
580
Tensile Strength: Ultimate (UTS), MPa 530 to 780
1000
Tensile Strength: Yield (Proof), MPa 280 to 570
710

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 390
470
Maximum Temperature: Mechanical, °C 740
1100
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 28
16
Thermal Expansion, µm/m-K 9.9
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
16
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.9
3.1
Embodied Energy, MJ/kg 27
44
Embodied Water, L/kg 99
170

Common Calculations

PREN (Pitting Resistance) 12
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
40
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 840
1240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19 to 28
36
Strength to Weight: Bending, points 19 to 24
29
Thermal Diffusivity, mm2/s 7.6
4.2
Thermal Shock Resistance, points 20 to 29
28

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.060
Chromium (Cr), % 11.5 to 13
25 to 27
Iron (Fe), % 84.7 to 88.5
63.6 to 69
Manganese (Mn), % 0 to 1.0
0 to 1.0
Nickel (Ni), % 0 to 0.6
6.0 to 7.0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0 to 0.25