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AISI 420F Stainless Steel vs. S20910 Stainless Steel

Both AISI 420F stainless steel and S20910 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI 420F stainless steel and the bottom bar is S20910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
230 to 290
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18
14 to 39
Fatigue Strength, MPa 270
310 to 460
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
79
Shear Strength, MPa 460
500 to 570
Tensile Strength: Ultimate (UTS), MPa 740
780 to 940
Tensile Strength: Yield (Proof), MPa 430
430 to 810

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 390
460
Maximum Temperature: Mechanical, °C 760
1080
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
13
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
22
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
4.8
Embodied Energy, MJ/kg 28
68
Embodied Water, L/kg 100
180

Common Calculations

PREN (Pitting Resistance) 14
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 480
460 to 1640
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
28 to 33
Strength to Weight: Bending, points 23
24 to 27
Thermal Diffusivity, mm2/s 6.8
3.6
Thermal Shock Resistance, points 27
17 to 21

Alloy Composition

Carbon (C), % 0.3 to 0.4
0 to 0.060
Chromium (Cr), % 12 to 14
20.5 to 23.5
Iron (Fe), % 82.4 to 87.6
52.1 to 62.1
Manganese (Mn), % 0 to 1.3
4.0 to 6.0
Molybdenum (Mo), % 0 to 0.5
1.5 to 3.0
Nickel (Ni), % 0
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0.15 to 0.35
0 to 0.030
Vanadium (V), % 0
0.1 to 0.3