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S21603 Stainless Steel vs. S32615 Stainless Steel

Both S21603 stainless steel and S32615 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 78% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S21603 stainless steel and the bottom bar is S32615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
28
Fatigue Strength, MPa 360
180
Poisson's Ratio 0.28
0.28
Reduction in Area, % 57
46
Shear Modulus, GPa 79
75
Shear Strength, MPa 490
400
Tensile Strength: Ultimate (UTS), MPa 690
620
Tensile Strength: Yield (Proof), MPa 390
250

Thermal Properties

Latent Heat of Fusion, J/g 290
370
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 990
990
Melting Completion (Liquidus), °C 1420
1350
Melting Onset (Solidus), °C 1380
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 17
15

Otherwise Unclassified Properties

Base Metal Price, % relative 17
24
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 3.6
4.4
Embodied Energy, MJ/kg 50
63
Embodied Water, L/kg 160
170

Common Calculations

PREN (Pitting Resistance) 34
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
140
Resilience: Unit (Modulus of Resilience), kJ/m3 380
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
23
Strength to Weight: Bending, points 22
21
Thermal Shock Resistance, points 15
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.070
Chromium (Cr), % 17.5 to 22
16.5 to 19.5
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 57.6 to 67.8
46.4 to 57.9
Manganese (Mn), % 7.5 to 9.0
0 to 2.0
Molybdenum (Mo), % 2.0 to 3.0
0.3 to 1.5
Nickel (Ni), % 5.0 to 7.0
19 to 22
Nitrogen (N), % 0.25 to 0.5
0
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 0.75
4.8 to 6.0
Sulfur (S), % 0 to 0.030
0 to 0.030