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S20432 Stainless Steel vs. SAE-AISI M43 Steel

Both S20432 stainless steel and SAE-AISI M43 steel are iron alloys. They have 75% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is S20432 stainless steel and the bottom bar is SAE-AISI M43 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 580
810 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1410
1550
Melting Onset (Solidus), °C 1370
1500
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 15
19
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
33
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 2.7
8.5
Embodied Energy, MJ/kg 38
120
Embodied Water, L/kg 140
140

Common Calculations

PREN (Pitting Resistance) 20
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
27 to 77
Strength to Weight: Bending, points 20
24 to 47
Thermal Diffusivity, mm2/s 4.0
5.3
Thermal Shock Resistance, points 13
25 to 71

Alloy Composition

Carbon (C), % 0 to 0.080
1.2 to 1.3
Chromium (Cr), % 17 to 18
3.5 to 4.3
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 2.0 to 3.0
0 to 0.25
Iron (Fe), % 66.7 to 74
70.8 to 76
Manganese (Mn), % 3.0 to 5.0
0.2 to 0.4
Molybdenum (Mo), % 0
7.5 to 8.5
Nickel (Ni), % 4.0 to 6.0
0 to 0.3
Nitrogen (N), % 0.050 to 0.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 0.65
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
2.3 to 3.0
Vanadium (V), % 0
1.5 to 1.8