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S40920 Stainless Steel vs. S35125 Stainless Steel

Both S40920 stainless steel and S35125 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 53% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S40920 stainless steel and the bottom bar is S35125 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
39
Fatigue Strength, MPa 130
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
78
Shear Strength, MPa 270
370
Tensile Strength: Ultimate (UTS), MPa 430
540
Tensile Strength: Yield (Proof), MPa 190
230

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 450
490
Maximum Temperature: Mechanical, °C 710
1100
Melting Completion (Liquidus), °C 1450
1430
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
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
36
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 2.0
6.4
Embodied Energy, MJ/kg 28
89
Embodied Water, L/kg 94
210

Common Calculations

PREN (Pitting Resistance) 11
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
170
Resilience: Unit (Modulus of Resilience), kJ/m3 97
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 15
19
Strength to Weight: Bending, points 16
18
Thermal Diffusivity, mm2/s 6.9
3.1
Thermal Shock Resistance, points 15
12

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 10.5 to 11.7
20 to 23
Iron (Fe), % 85.1 to 89.4
36.2 to 45.8
Manganese (Mn), % 0 to 1.0
1.0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0 to 0.5
31 to 35
Niobium (Nb), % 0 to 0.1
0.25 to 0.6
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0.15 to 0.5
0