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S21900 Stainless Steel vs. AISI 410Cb Stainless Steel

Both S21900 stainless steel and AISI 410Cb stainless steel are iron alloys. They have 76% of their average alloy composition in common.

For each property being compared, the top bar is S21900 stainless steel and the bottom bar is AISI 410Cb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
200 to 270
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 50
15
Fatigue Strength, MPa 380
180 to 460
Poisson's Ratio 0.28
0.28
Reduction in Area, % 57
50 to 51
Shear Modulus, GPa 78
76
Shear Strength, MPa 510
340 to 590
Tensile Strength: Ultimate (UTS), MPa 710
550 to 960
Tensile Strength: Yield (Proof), MPa 390
310 to 790

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 980
730
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1350
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 14
27
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 15
7.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.0
2.0
Embodied Energy, MJ/kg 43
29
Embodied Water, L/kg 160
97

Common Calculations

PREN (Pitting Resistance) 25
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
70 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 380
240 to 1600
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
20 to 35
Strength to Weight: Bending, points 23
19 to 28
Thermal Diffusivity, mm2/s 3.8
7.3
Thermal Shock Resistance, points 15
20 to 35

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.18
Chromium (Cr), % 19 to 21.5
11 to 13
Iron (Fe), % 59.4 to 67.4
84.5 to 89
Manganese (Mn), % 8.0 to 10
0 to 1.0
Nickel (Ni), % 5.5 to 7.5
0
Niobium (Nb), % 0
0.050 to 0.3
Nitrogen (N), % 0.15 to 0.4
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030