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AISI 415 Stainless Steel vs. S21603 Stainless Steel

Both AISI 415 stainless steel and S21603 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 415 stainless steel and the bottom bar is S21603 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
45
Fatigue Strength, MPa 430
360
Poisson's Ratio 0.28
0.28
Reduction in Area, % 50
57
Shear Modulus, GPa 76
79
Shear Strength, MPa 550
490
Tensile Strength: Ultimate (UTS), MPa 900
690
Tensile Strength: Yield (Proof), MPa 700
390

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 780
990
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 10
17

Otherwise Unclassified Properties

Base Metal Price, % relative 11
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.5
3.6
Embodied Energy, MJ/kg 35
50
Embodied Water, L/kg 110
160

Common Calculations

PREN (Pitting Resistance) 15
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
270
Resilience: Unit (Modulus of Resilience), kJ/m3 1250
380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32
25
Strength to Weight: Bending, points 26
22
Thermal Shock Resistance, points 33
15

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 11.5 to 14
17.5 to 22
Iron (Fe), % 77.8 to 84
57.6 to 67.8
Manganese (Mn), % 0.5 to 1.0
7.5 to 9.0
Molybdenum (Mo), % 0.5 to 1.0
2.0 to 3.0
Nickel (Ni), % 3.5 to 5.5
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.6
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030