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S20431 Stainless Steel vs. S41425 Stainless Steel

Both S20431 stainless steel and S41425 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 33 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 S20431 stainless steel and the bottom bar is S41425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
280
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 46
17
Fatigue Strength, MPa 320
450
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 500
570
Tensile Strength: Ultimate (UTS), MPa 710
920
Tensile Strength: Yield (Proof), MPa 350
750

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 890
810
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
13
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.5
2.9
Embodied Energy, MJ/kg 36
40
Embodied Water, L/kg 140
120

Common Calculations

PREN (Pitting Resistance) 20
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
150
Resilience: Unit (Modulus of Resilience), kJ/m3 310
1420
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
33
Strength to Weight: Bending, points 23
27
Thermal Diffusivity, mm2/s 4.0
4.4
Thermal Shock Resistance, points 15
33

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.050
Chromium (Cr), % 17 to 18
12 to 15
Copper (Cu), % 1.5 to 3.5
0 to 0.3
Iron (Fe), % 66.1 to 74.4
74 to 81.9
Manganese (Mn), % 5.0 to 7.0
0.5 to 1.0
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 2.0 to 4.0
4.0 to 7.0
Nitrogen (N), % 0.1 to 0.25
0.060 to 0.12
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0050