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EN 1.4588 Stainless Steel vs. SAE-AISI M4 Steel

Both EN 1.4588 stainless steel and SAE-AISI M4 steel are iron alloys. They have 56% 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 1.4588 stainless steel and the bottom bar is SAE-AISI M4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 540
770 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1450
1610
Melting Onset (Solidus), °C 1410
1560
Specific Heat Capacity, J/kg-K 460
440
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 33
25
Density, g/cm3 8.1
8.3
Embodied Carbon, kg CO2/kg material 6.2
14
Embodied Energy, MJ/kg 84
210
Embodied Water, L/kg 200
110

Common Calculations

PREN (Pitting Resistance) 44
30
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 18
26 to 72
Strength to Weight: Bending, points 18
23 to 45
Thermal Diffusivity, mm2/s 4.0
6.9
Thermal Shock Resistance, points 11
24 to 68

Alloy Composition

Carbon (C), % 0 to 0.020
1.3 to 1.4
Chromium (Cr), % 19 to 21
3.8 to 4.8
Copper (Cu), % 0.5 to 1.5
0 to 0.25
Iron (Fe), % 41.2 to 50.4
75.9 to 81.4
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 6.0 to 7.0
4.3 to 5.5
Nickel (Ni), % 24 to 26
0 to 0.3
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.45
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 0
5.3 to 6.5
Vanadium (V), % 0
3.8 to 4.5