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S44626 Stainless Steel vs. S21600 Stainless Steel

Both S44626 stainless steel and S21600 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 85% 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 S44626 stainless steel and the bottom bar is S21600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
46
Fatigue Strength, MPa 230
360
Poisson's Ratio 0.27
0.28
Rockwell B Hardness 83
86
Shear Modulus, GPa 80
79
Shear Strength, MPa 340
500
Tensile Strength: Ultimate (UTS), MPa 540
710
Tensile Strength: Yield (Proof), MPa 350
390

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 560
420
Maximum Temperature: Mechanical, °C 1100
990
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 11
17

Otherwise Unclassified Properties

Base Metal Price, % relative 14
17
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.9
3.6
Embodied Energy, MJ/kg 42
50
Embodied Water, L/kg 160
160

Common Calculations

PREN (Pitting Resistance) 30
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
270
Resilience: Unit (Modulus of Resilience), kJ/m3 300
370
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 19
25
Strength to Weight: Bending, points 19
23
Thermal Shock Resistance, points 18
15

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.080
Chromium (Cr), % 25 to 27
17.5 to 22
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 68.1 to 74.1
57.6 to 67.8
Manganese (Mn), % 0 to 0.75
7.5 to 9.0
Molybdenum (Mo), % 0.75 to 1.5
2.0 to 3.0
Nickel (Ni), % 0 to 0.5
5.0 to 7.0
Nitrogen (N), % 0 to 0.040
0.25 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.75
0 to 0.75
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0.2 to 1.0
0