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SAE-AISI M43 Steel vs. EN 1.4911 Stainless Steel

Both SAE-AISI M43 steel and EN 1.4911 stainless steel are iron alloys. They have 86% 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 1.4911 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
1070

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1550
1450
Melting Onset (Solidus), °C 1500
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 19
20
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 33
20
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 8.5
3.4
Embodied Energy, MJ/kg 120
49
Embodied Water, L/kg 140
130

Common Calculations

PREN (Pitting Resistance) 35
14
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 77
38
Strength to Weight: Bending, points 24 to 47
30
Thermal Diffusivity, mm2/s 5.3
5.4
Thermal Shock Resistance, points 25 to 71
37

Alloy Composition

Boron (B), % 0
0.0050 to 0.015
Carbon (C), % 1.2 to 1.3
0.050 to 0.12
Chromium (Cr), % 3.5 to 4.3
9.8 to 11.2
Cobalt (Co), % 7.8 to 8.8
5.0 to 7.0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 70.8 to 76
75.7 to 83.8
Manganese (Mn), % 0.2 to 0.4
0.3 to 1.3
Molybdenum (Mo), % 7.5 to 8.5
0.5 to 1.0
Nickel (Ni), % 0 to 0.3
0.2 to 1.2
Niobium (Nb), % 0
0.2 to 0.5
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.15 to 0.65
0.1 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 2.3 to 3.0
0 to 0.7
Vanadium (V), % 1.5 to 1.8
0.1 to 0.4