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SAE-AISI M43 Steel vs. EN 1.6579 Steel

Both SAE-AISI M43 steel and EN 1.6579 steel are iron alloys. They have 76% 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 1.6579 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 810 to 2290
850 to 980

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1550
1460
Melting Onset (Solidus), °C 1500
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 19
39
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 33
3.7
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 8.5
1.7
Embodied Energy, MJ/kg 120
22
Embodied Water, L/kg 140
56

Common Calculations

PREN (Pitting Resistance) 35
2.4
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 77
30 to 35
Strength to Weight: Bending, points 24 to 47
25 to 28
Thermal Diffusivity, mm2/s 5.3
11
Thermal Shock Resistance, points 25 to 71
25 to 29

Alloy Composition

Carbon (C), % 1.2 to 1.3
0.32 to 0.38
Chromium (Cr), % 3.5 to 4.3
1.4 to 1.7
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 70.8 to 76
94.2 to 96.1
Manganese (Mn), % 0.2 to 0.4
0.6 to 1.0
Molybdenum (Mo), % 7.5 to 8.5
0.15 to 0.35
Nickel (Ni), % 0 to 0.3
1.4 to 1.7
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.15 to 0.65
0 to 0.6
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

Comparable Variants