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SAE-AISI M43 Steel vs. EN 1.4020 Stainless Steel

Both SAE-AISI M43 steel and EN 1.4020 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M43 steel and the bottom bar is EN 1.4020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 810 to 2290
770 to 1130

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1550
1390
Melting Onset (Solidus), °C 1500
1350
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 33
11
Density, g/cm3 8.2
7.6
Embodied Carbon, kg CO2/kg material 8.5
2.5
Embodied Energy, MJ/kg 120
37
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 35
23
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 77
28 to 41
Strength to Weight: Bending, points 24 to 47
25 to 32
Thermal Shock Resistance, points 25 to 71
16 to 23

Alloy Composition

Carbon (C), % 1.2 to 1.3
0 to 0.15
Chromium (Cr), % 3.5 to 4.3
16.5 to 19
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 70.8 to 76
62.8 to 71.8
Manganese (Mn), % 0.2 to 0.4
11 to 14
Molybdenum (Mo), % 7.5 to 8.5
0
Nickel (Ni), % 0 to 0.3
0.5 to 2.5
Nitrogen (N), % 0
0.2 to 0.45
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.15 to 0.65
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 2.3 to 3.0
0
Vanadium (V), % 1.5 to 1.8
0