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SAE-AISI M43 Steel vs. EN 1.4859 Stainless Steel

Both SAE-AISI M43 steel and EN 1.4859 stainless steel are iron alloys. They have 50% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 1.4859 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
76
Tensile Strength: Ultimate (UTS), MPa 810 to 2290
490

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1550
1410
Melting Onset (Solidus), °C 1500
1360
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 19
13
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 33
36
Density, g/cm3 8.2
8.0
Embodied Carbon, kg CO2/kg material 8.5
6.2
Embodied Energy, MJ/kg 120
88
Embodied Water, L/kg 140
190

Common Calculations

PREN (Pitting Resistance) 35
21
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 77
17
Strength to Weight: Bending, points 24 to 47
17
Thermal Diffusivity, mm2/s 5.3
3.4
Thermal Shock Resistance, points 25 to 71
11

Alloy Composition

Carbon (C), % 1.2 to 1.3
0.050 to 0.15
Chromium (Cr), % 3.5 to 4.3
19 to 21
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 70.8 to 76
40.3 to 49
Manganese (Mn), % 0.2 to 0.4
0 to 2.0
Molybdenum (Mo), % 7.5 to 8.5
0 to 0.5
Nickel (Ni), % 0 to 0.3
31 to 33
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.65
0.5 to 1.5
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