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EN 1.4901 Stainless Steel vs. SAE-AISI M6 Steel

Both EN 1.4901 stainless steel and SAE-AISI M6 steel are iron alloys. They have 79% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.4901 stainless steel and the bottom bar is SAE-AISI M6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 740
840 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1490
1560
Melting Onset (Solidus), °C 1450
1510
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 26
17
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 11
39
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 2.8
8.0
Embodied Energy, MJ/kg 40
120
Embodied Water, L/kg 89
160

Common Calculations

PREN (Pitting Resistance) 14
28
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 26
28 to 73
Strength to Weight: Bending, points 23
24 to 45
Thermal Diffusivity, mm2/s 6.9
4.7
Thermal Shock Resistance, points 23
26 to 68

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.070 to 0.13
0.75 to 0.85
Chromium (Cr), % 8.5 to 9.5
3.8 to 4.5
Cobalt (Co), % 0
11 to 13
Iron (Fe), % 85.8 to 89.1
68.8 to 74.6
Manganese (Mn), % 0.3 to 0.6
0.15 to 0.4
Molybdenum (Mo), % 0.3 to 0.6
4.5 to 5.5
Nickel (Ni), % 0 to 0.4
0
Niobium (Nb), % 0.040 to 0.090
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.5
0.2 to 0.45
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.0
3.8 to 4.8
Vanadium (V), % 0.15 to 0.25
1.3 to 1.7
Zirconium (Zr), % 0 to 0.010
0