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EN 1.4434 Stainless Steel vs. SAE-AISI M47 Steel

Both EN 1.4434 stainless steel and SAE-AISI M47 steel are iron alloys. They have 73% 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 1.4434 stainless steel and the bottom bar is SAE-AISI M47 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 660
810 to 2310

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1450
1540
Melting Onset (Solidus), °C 1400
1500
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 15
23
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 21
26
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 4.2
7.4
Embodied Energy, MJ/kg 57
100
Embodied Water, L/kg 160
120

Common Calculations

PREN (Pitting Resistance) 32
38
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
28 to 79
Strength to Weight: Bending, points 21
24 to 48
Thermal Diffusivity, mm2/s 4.0
6.3
Thermal Shock Resistance, points 15
27 to 77

Alloy Composition

Carbon (C), % 0 to 0.030
1.1 to 1.2
Chromium (Cr), % 16.5 to 19.5
3.5 to 4.0
Cobalt (Co), % 0
4.8 to 5.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 59.2 to 69.9
78.7 to 85
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 3.0 to 4.0
9.3 to 10
Nickel (Ni), % 10.5 to 14
0 to 0.3
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.45
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
1.3 to 1.8
Vanadium (V), % 0
1.2 to 1.4