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SAE-AISI M4 Steel vs. EN 1.4611 Stainless Steel

Both SAE-AISI M4 steel and EN 1.4611 stainless steel are iron alloys. They have 83% 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 SAE-AISI M4 steel and the bottom bar is EN 1.4611 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
530

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1610
1440
Melting Onset (Solidus), °C 1560
1390
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 25
21
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 25
11
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 14
2.5
Embodied Energy, MJ/kg 210
36
Embodied Water, L/kg 110
140

Common Calculations

PREN (Pitting Resistance) 30
21
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 72
19
Strength to Weight: Bending, points 23 to 45
19
Thermal Diffusivity, mm2/s 6.9
5.7
Thermal Shock Resistance, points 24 to 68
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 1.3 to 1.4
0 to 0.030
Chromium (Cr), % 3.8 to 4.8
19 to 22
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 75.9 to 81.4
73.3 to 80.8
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.3 to 5.5
0 to 0.5
Nickel (Ni), % 0 to 0.3
0 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.050
Silicon (Si), % 0.2 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.050
Titanium (Ti), % 0
0.2 to 1.0
Tungsten (W), % 5.3 to 6.5
0
Vanadium (V), % 3.8 to 4.5
0