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EN 1.4517 Stainless Steel vs. SAE-AISI M7 Steel

Both EN 1.4517 stainless steel and SAE-AISI M7 steel are iron alloys. They have 69% 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 EN 1.4517 stainless steel and the bottom bar is SAE-AISI M7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 730
760 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1430
1560
Melting Onset (Solidus), °C 1390
1510
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 17
28
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 20
18
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.8
8.9
Embodied Energy, MJ/kg 53
130
Embodied Water, L/kg 180
100

Common Calculations

PREN (Pitting Resistance) 38
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26
26 to 76
Strength to Weight: Bending, points 23
23 to 47
Thermal Diffusivity, mm2/s 4.6
7.8
Thermal Shock Resistance, points 20
24 to 69

Alloy Composition

Carbon (C), % 0 to 0.030
1.0 to 1.1
Chromium (Cr), % 24.5 to 26.5
3.5 to 4.0
Copper (Cu), % 2.8 to 3.5
0 to 0.25
Iron (Fe), % 56.7 to 65.1
79.8 to 83.8
Manganese (Mn), % 0 to 1.5
0.15 to 0.4
Molybdenum (Mo), % 2.5 to 3.5
8.2 to 9.2
Nickel (Ni), % 5.0 to 7.0
0 to 0.3
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.55
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0
1.8 to 2.3