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EN 1.4659 Stainless Steel vs. SAE-AISI M43 Steel

Both EN 1.4659 stainless steel and SAE-AISI M43 steel are iron alloys. They have 54% 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 EN 1.4659 stainless steel and the bottom bar is SAE-AISI M43 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
77
Tensile Strength: Ultimate (UTS), MPa 900
810 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1480
1550
Melting Onset (Solidus), °C 1430
1500
Specific Heat Capacity, J/kg-K 460
450
Thermal Conductivity, W/m-K 12
19
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
33
Density, g/cm3 8.2
8.2
Embodied Carbon, kg CO2/kg material 6.5
8.5
Embodied Energy, MJ/kg 89
120
Embodied Water, L/kg 220
140

Common Calculations

PREN (Pitting Resistance) 54
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 31
27 to 77
Strength to Weight: Bending, points 25
24 to 47
Thermal Diffusivity, mm2/s 3.2
5.3
Thermal Shock Resistance, points 19
25 to 71

Alloy Composition

Carbon (C), % 0 to 0.020
1.2 to 1.3
Chromium (Cr), % 23 to 25
3.5 to 4.3
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 1.0 to 2.0
0 to 0.25
Iron (Fe), % 35.7 to 45.7
70.8 to 76
Manganese (Mn), % 2.0 to 4.0
0.2 to 0.4
Molybdenum (Mo), % 5.5 to 6.5
7.5 to 8.5
Nickel (Ni), % 21 to 23
0 to 0.3
Nitrogen (N), % 0.35 to 0.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.7
0.15 to 0.65
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 1.5 to 2.5
2.3 to 3.0
Vanadium (V), % 0
1.5 to 1.8