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AISI 202 Stainless Steel vs. S40920 Stainless Steel

Both AISI 202 stainless steel and S40920 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 33 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 AISI 202 stainless steel and the bottom bar is S40920 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 300
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 45
22
Fatigue Strength, MPa 290 to 330
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Shear Strength, MPa 490 to 590
270
Tensile Strength: Ultimate (UTS), MPa 700 to 980
430
Tensile Strength: Yield (Proof), MPa 310 to 580
190

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 910
710
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
26
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
6.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.8
2.0
Embodied Energy, MJ/kg 40
28
Embodied Water, L/kg 150
94

Common Calculations

PREN (Pitting Resistance) 20
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
78
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 840
97
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25 to 35
15
Strength to Weight: Bending, points 23 to 29
16
Thermal Diffusivity, mm2/s 4.0
6.9
Thermal Shock Resistance, points 15 to 21
15

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 17 to 19
10.5 to 11.7
Iron (Fe), % 63.5 to 71.5
85.1 to 89.4
Manganese (Mn), % 7.5 to 10
0 to 1.0
Nickel (Ni), % 4.0 to 6.0
0 to 0.5
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0 to 0.25
0 to 0.030
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
0.15 to 0.5