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S20431 Stainless Steel vs. S42300 Stainless Steel

Both S20431 stainless steel and S42300 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 33 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 S20431 stainless steel and the bottom bar is S42300 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
330
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 46
9.1
Fatigue Strength, MPa 320
440
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 500
650
Tensile Strength: Ultimate (UTS), MPa 710
1100
Tensile Strength: Yield (Proof), MPa 350
850

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 410
380
Maximum Temperature: Mechanical, °C 890
750
Melting Completion (Liquidus), °C 1400
1470
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
4.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
5.2

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.5
3.2
Embodied Energy, MJ/kg 36
44
Embodied Water, L/kg 140
110

Common Calculations

PREN (Pitting Resistance) 20
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
93
Resilience: Unit (Modulus of Resilience), kJ/m3 310
1840
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
39
Strength to Weight: Bending, points 23
30
Thermal Diffusivity, mm2/s 4.0
6.8
Thermal Shock Resistance, points 15
40

Alloy Composition

Carbon (C), % 0 to 0.12
0.27 to 0.32
Chromium (Cr), % 17 to 18
11 to 12
Copper (Cu), % 1.5 to 3.5
0
Iron (Fe), % 66.1 to 74.4
82 to 85.1
Manganese (Mn), % 5.0 to 7.0
1.0 to 1.4
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 2.0 to 4.0
0 to 0.5
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025
Vanadium (V), % 0
0.2 to 0.3