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S21603 Stainless Steel vs. N08801 Stainless Steel

Both S21603 stainless steel and N08801 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 72% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S21603 stainless steel and the bottom bar is N08801 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
34
Fatigue Strength, MPa 360
260
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 490
570
Tensile Strength: Ultimate (UTS), MPa 690
860
Tensile Strength: Yield (Proof), MPa 390
190

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
630
Maximum Temperature: Mechanical, °C 990
1090
Melting Completion (Liquidus), °C 1420
1390
Melting Onset (Solidus), °C 1380
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 17
30
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 3.6
5.5
Embodied Energy, MJ/kg 50
79
Embodied Water, L/kg 160
200

Common Calculations

PREN (Pitting Resistance) 34
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
220
Resilience: Unit (Modulus of Resilience), kJ/m3 380
92
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
30
Strength to Weight: Bending, points 22
25
Thermal Shock Resistance, points 15
20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 17.5 to 22
19 to 22
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 57.6 to 67.8
39.5 to 50.3
Manganese (Mn), % 7.5 to 9.0
0 to 1.5
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 5.0 to 7.0
30 to 34
Nitrogen (N), % 0.25 to 0.5
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.75 to 1.5