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S21904 Stainless Steel vs. S28200 Stainless Steel

Both S21904 stainless steel and S28200 stainless steel are iron alloys. They have 89% 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 S28200 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 300
260
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17 to 51
45
Fatigue Strength, MPa 380 to 550
430
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Shear Strength, MPa 510 to 620
610
Tensile Strength: Ultimate (UTS), MPa 700 to 1000
870
Tensile Strength: Yield (Proof), MPa 390 to 910
460

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 430
410
Maximum Temperature: Mechanical, °C 980
900
Melting Completion (Liquidus), °C 1400
1380
Melting Onset (Solidus), °C 1350
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
18

Otherwise Unclassified Properties

Base Metal Price, % relative 15
12
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 43
41
Embodied Water, L/kg 160
160

Common Calculations

PREN (Pitting Resistance) 25
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 310
330
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 2070
540
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 25 to 36
32
Strength to Weight: Bending, points 23 to 29
27
Thermal Shock Resistance, points 15 to 21
17

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.15
Chromium (Cr), % 19 to 21.5
17 to 19
Copper (Cu), % 0
0.75 to 1.3
Iron (Fe), % 59.5 to 67.4
57.7 to 64.1
Manganese (Mn), % 8.0 to 10
17 to 19
Molybdenum (Mo), % 0
0.75 to 1.3
Nickel (Ni), % 5.5 to 7.5
0
Nitrogen (N), % 0.15 to 0.4
0.4 to 0.6
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030