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AISI 403 Stainless Steel vs. S31655 Stainless Steel

Both AISI 403 stainless steel and S31655 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 403 stainless steel and the bottom bar is S31655 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 240
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16 to 25
39
Fatigue Strength, MPa 200 to 340
300
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 83
88
Shear Modulus, GPa 76
78
Shear Strength, MPa 340 to 480
490
Tensile Strength: Ultimate (UTS), MPa 530 to 780
710
Tensile Strength: Yield (Proof), MPa 280 to 570
350

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 390
430
Maximum Temperature: Mechanical, °C 740
1010
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 28
15
Thermal Expansion, µm/m-K 9.9
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
17
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.9
3.3
Embodied Energy, MJ/kg 27
46
Embodied Water, L/kg 99
160

Common Calculations

PREN (Pitting Resistance) 12
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
230
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 840
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19 to 28
25
Strength to Weight: Bending, points 19 to 24
23
Thermal Diffusivity, mm2/s 7.6
4.0
Thermal Shock Resistance, points 20 to 29
16

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 11.5 to 13
19.5 to 21.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 84.7 to 88.5
63.2 to 71.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0.5 to 1.5
Nickel (Ni), % 0 to 0.6
8.0 to 9.5
Nitrogen (N), % 0
0.14 to 0.25
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 0.015