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S21904 Stainless Steel vs. S32615 Stainless Steel

Both S21904 stainless steel and S32615 stainless steel are iron alloys. They have 78% of their average alloy composition in common. There are 29 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 S21904 stainless steel and the bottom bar is S32615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 300
170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17 to 51
28
Fatigue Strength, MPa 380 to 550
180
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
75
Shear Strength, MPa 510 to 620
400
Tensile Strength: Ultimate (UTS), MPa 700 to 1000
620
Tensile Strength: Yield (Proof), MPa 390 to 910
250

Thermal Properties

Latent Heat of Fusion, J/g 290
370
Maximum Temperature: Corrosion, °C 430
410
Maximum Temperature: Mechanical, °C 980
990
Melting Completion (Liquidus), °C 1400
1350
Melting Onset (Solidus), °C 1350
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 17
15

Otherwise Unclassified Properties

Base Metal Price, % relative 15
24
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 3.0
4.4
Embodied Energy, MJ/kg 43
63
Embodied Water, L/kg 160
170

Common Calculations

PREN (Pitting Resistance) 25
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 310
140
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 2070
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25 to 36
23
Strength to Weight: Bending, points 23 to 29
21
Thermal Shock Resistance, points 15 to 21
15

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.070
Chromium (Cr), % 19 to 21.5
16.5 to 19.5
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 59.5 to 67.4
46.4 to 57.9
Manganese (Mn), % 8.0 to 10
0 to 2.0
Molybdenum (Mo), % 0
0.3 to 1.5
Nickel (Ni), % 5.5 to 7.5
19 to 22
Nitrogen (N), % 0.15 to 0.4
0
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
4.8 to 6.0
Sulfur (S), % 0 to 0.030
0 to 0.030