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SAE-AISI M4 Steel vs. EN 1.4823 Stainless Steel

Both SAE-AISI M4 steel and EN 1.4823 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (9, 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 1.4823 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
79
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
620

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Melting Completion (Liquidus), °C 1610
1400
Melting Onset (Solidus), °C 1560
1360
Specific Heat Capacity, J/kg-K 440
490
Thermal Conductivity, W/m-K 25
17
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 25
16
Density, g/cm3 8.3
7.6
Embodied Carbon, kg CO2/kg material 14
3.0
Embodied Energy, MJ/kg 210
43
Embodied Water, L/kg 110
170

Common Calculations

PREN (Pitting Resistance) 30
27
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
26
Strength to Weight: Axial, points 26 to 72
23
Strength to Weight: Bending, points 23 to 45
21
Thermal Diffusivity, mm2/s 6.9
4.5
Thermal Shock Resistance, points 24 to 68
17

Alloy Composition

Carbon (C), % 1.3 to 1.4
0.3 to 0.5
Chromium (Cr), % 3.8 to 4.8
25 to 28
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 75.9 to 81.4
60.9 to 70.7
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Molybdenum (Mo), % 4.3 to 5.5
0 to 0.5
Nickel (Ni), % 0 to 0.3
3.0 to 6.0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
1.0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.3 to 6.5
0
Vanadium (V), % 3.8 to 4.5
0