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S21603 Stainless Steel vs. AISI 403 Stainless Steel

Both S21603 stainless steel and AISI 403 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S21603 stainless steel and the bottom bar is AISI 403 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
190 to 240
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
16 to 25
Fatigue Strength, MPa 360
200 to 340
Poisson's Ratio 0.28
0.28
Reduction in Area, % 57
47 to 50
Rockwell B Hardness 88
83
Shear Modulus, GPa 79
76
Shear Strength, MPa 490
340 to 480
Tensile Strength: Ultimate (UTS), MPa 690
530 to 780
Tensile Strength: Yield (Proof), MPa 390
280 to 570

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 990
740
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 17
6.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.6
1.9
Embodied Energy, MJ/kg 50
27
Embodied Water, L/kg 160
99

Common Calculations

PREN (Pitting Resistance) 34
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 380
210 to 840
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
19 to 28
Strength to Weight: Bending, points 22
19 to 24
Thermal Shock Resistance, points 15
20 to 29

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 17.5 to 22
11.5 to 13
Iron (Fe), % 57.6 to 67.8
84.7 to 88.5
Manganese (Mn), % 7.5 to 9.0
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 5.0 to 7.0
0 to 0.6
Nitrogen (N), % 0.25 to 0.5
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030