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AISI 303Se Stainless Steel vs. S21603 Stainless Steel

Both AISI 303Se stainless steel and S21603 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 88% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 303Se stainless steel and the bottom bar is S21603 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
45
Fatigue Strength, MPa 210
360
Poisson's Ratio 0.28
0.28
Reduction in Area, % 57
57
Shear Modulus, GPa 77
79
Shear Strength, MPa 410
490
Tensile Strength: Ultimate (UTS), MPa 590
690
Tensile Strength: Yield (Proof), MPa 230
390

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 930
990
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 16
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.0
3.6
Embodied Energy, MJ/kg 42
50
Embodied Water, L/kg 140
160

Common Calculations

PREN (Pitting Resistance) 18
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
270
Resilience: Unit (Modulus of Resilience), kJ/m3 130
380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
25
Strength to Weight: Bending, points 20
22
Thermal Shock Resistance, points 13
15

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 17 to 19
17.5 to 22
Iron (Fe), % 67.2 to 74.9
57.6 to 67.8
Manganese (Mn), % 0 to 2.0
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 8.0 to 10
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0 to 0.2
0 to 0.045
Selenium (Se), % 0.15 to 0.35
0
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.060
0 to 0.030