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SAE-AISI M4 Steel vs. EN 1.4584 Stainless Steel

Both SAE-AISI M4 steel and EN 1.4584 stainless steel are iron alloys. They have 57% 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 1.4584 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 76
79
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
500

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1610
1440
Melting Onset (Solidus), °C 1560
1390
Specific Heat Capacity, J/kg-K 440
460
Thermal Conductivity, W/m-K 25
17
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 25
31
Density, g/cm3 8.3
8.1
Embodied Carbon, kg CO2/kg material 14
5.7
Embodied Energy, MJ/kg 210
78
Embodied Water, L/kg 110
200

Common Calculations

PREN (Pitting Resistance) 30
36
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 72
17
Strength to Weight: Bending, points 23 to 45
17
Thermal Diffusivity, mm2/s 6.9
4.5
Thermal Shock Resistance, points 24 to 68
12

Alloy Composition

Carbon (C), % 1.3 to 1.4
0 to 0.025
Chromium (Cr), % 3.8 to 4.8
19 to 21
Copper (Cu), % 0 to 0.25
1.0 to 3.0
Iron (Fe), % 75.9 to 81.4
41.7 to 52
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 4.3 to 5.5
4.0 to 5.0
Nickel (Ni), % 0 to 0.3
24 to 26
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.2 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 5.3 to 6.5
0
Vanadium (V), % 3.8 to 4.5
0