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S32520 Stainless Steel vs. S21600 Stainless Steel

Both S32520 stainless steel and S21600 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 92% 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 S32520 stainless steel and the bottom bar is S21600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
46
Fatigue Strength, MPa 460
360
Poisson's Ratio 0.27
0.28
Reduction in Area, % 46
56
Shear Modulus, GPa 80
79
Shear Strength, MPa 560
500
Tensile Strength: Ultimate (UTS), MPa 860
710
Tensile Strength: Yield (Proof), MPa 630
390

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
990
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 20
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.0
3.6
Embodied Energy, MJ/kg 55
50
Embodied Water, L/kg 180
160

Common Calculations

PREN (Pitting Resistance) 41
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
270
Resilience: Unit (Modulus of Resilience), kJ/m3 960
370
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31
25
Strength to Weight: Bending, points 26
23
Thermal Shock Resistance, points 24
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 24 to 26
17.5 to 22
Copper (Cu), % 0.5 to 2.0
0
Iron (Fe), % 57.3 to 66.8
57.6 to 67.8
Manganese (Mn), % 0 to 1.5
7.5 to 9.0
Molybdenum (Mo), % 3.0 to 4.0
2.0 to 3.0
Nickel (Ni), % 5.5 to 8.0
5.0 to 7.0
Nitrogen (N), % 0.2 to 0.35
0.25 to 0.5
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.8
0 to 0.75
Sulfur (S), % 0 to 0.020
0 to 0.030