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S40920 Stainless Steel vs. S34565 Stainless Steel

Both S40920 stainless steel and S34565 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 60% of their average alloy composition in common. There are 34 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 S40920 stainless steel and the bottom bar is S34565 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
200
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 22
39
Fatigue Strength, MPa 130
400
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 77
88
Shear Modulus, GPa 75
80
Shear Strength, MPa 270
610
Tensile Strength: Ultimate (UTS), MPa 430
900
Tensile Strength: Yield (Proof), MPa 190
470

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Corrosion, °C 450
450
Maximum Temperature: Mechanical, °C 710
1100
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 26
12
Thermal Expansion, µm/m-K 10
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
28
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
5.3
Embodied Energy, MJ/kg 28
73
Embodied Water, L/kg 94
210

Common Calculations

PREN (Pitting Resistance) 11
47
Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
300
Resilience: Unit (Modulus of Resilience), kJ/m3 97
540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 15
32
Strength to Weight: Bending, points 16
26
Thermal Diffusivity, mm2/s 6.9
3.2
Thermal Shock Resistance, points 15
22

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 10.5 to 11.7
23 to 25
Iron (Fe), % 85.1 to 89.4
43.2 to 51.6
Manganese (Mn), % 0 to 1.0
5.0 to 7.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0 to 0.5
16 to 18
Niobium (Nb), % 0 to 0.1
0 to 0.1
Nitrogen (N), % 0 to 0.030
0.4 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.010
Titanium (Ti), % 0.15 to 0.5
0