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S21603 Stainless Steel vs. S44625 Stainless Steel

Both S21603 stainless steel and S44625 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 84% 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 S44625 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
22
Fatigue Strength, MPa 360
240
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
80
Shear Strength, MPa 490
370
Tensile Strength: Ultimate (UTS), MPa 690
590
Tensile Strength: Yield (Proof), MPa 390
360

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 420
450
Maximum Temperature: Mechanical, °C 990
1100
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
11

Otherwise Unclassified Properties

Base Metal Price, % relative 17
14
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.6
2.8
Embodied Energy, MJ/kg 50
39
Embodied Water, L/kg 160
160

Common Calculations

PREN (Pitting Resistance) 34
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
110
Resilience: Unit (Modulus of Resilience), kJ/m3 380
310
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
21
Strength to Weight: Bending, points 22
20
Thermal Shock Resistance, points 15
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.010
Chromium (Cr), % 17.5 to 22
25 to 27.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 57.6 to 67.8
69.4 to 74.3
Manganese (Mn), % 7.5 to 9.0
0 to 0.4
Molybdenum (Mo), % 2.0 to 3.0
0.75 to 1.5
Nickel (Ni), % 5.0 to 7.0
0 to 0.5
Nitrogen (N), % 0.25 to 0.5
0 to 0.015
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 0.75
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.020