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S31803 Stainless Steel vs. S42300 Stainless Steel

Both S31803 stainless steel and S42300 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 34 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 S31803 stainless steel and the bottom bar is S42300 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
330
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 29
9.1
Fatigue Strength, MPa 370
440
Poisson's Ratio 0.27
0.28
Reduction in Area, % 50
22
Shear Modulus, GPa 80
77
Shear Strength, MPa 460
650
Tensile Strength: Ultimate (UTS), MPa 710
1100
Tensile Strength: Yield (Proof), MPa 500
850

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 430
380
Maximum Temperature: Mechanical, °C 1060
750
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
4.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
5.2

Otherwise Unclassified Properties

Base Metal Price, % relative 17
9.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.6
3.2
Embodied Energy, MJ/kg 49
44
Embodied Water, L/kg 160
110

Common Calculations

PREN (Pitting Resistance) 34
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
93
Resilience: Unit (Modulus of Resilience), kJ/m3 630
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 4.3
6.8
Thermal Shock Resistance, points 20
40

Alloy Composition

Carbon (C), % 0 to 0.030
0.27 to 0.32
Chromium (Cr), % 21 to 23
11 to 12
Iron (Fe), % 63.7 to 71.9
82 to 85.1
Manganese (Mn), % 0 to 2.0
1.0 to 1.4
Molybdenum (Mo), % 2.5 to 3.5
2.5 to 3.0
Nickel (Ni), % 4.5 to 6.5
0 to 0.5
Nitrogen (N), % 0.080 to 0.2
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.025
Vanadium (V), % 0
0.2 to 0.3