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SAE-AISI M4 Steel vs. EN 1.4762 Stainless Steel

Both SAE-AISI M4 steel and EN 1.4762 stainless steel are iron alloys. They have 77% 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 1.4762 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
620

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1610
1410
Melting Onset (Solidus), °C 1560
1370
Specific Heat Capacity, J/kg-K 440
490
Thermal Conductivity, W/m-K 25
17
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 25
12
Density, g/cm3 8.3
7.6
Embodied Carbon, kg CO2/kg material 14
2.5
Embodied Energy, MJ/kg 210
37
Embodied Water, L/kg 110
170

Common Calculations

PREN (Pitting Resistance) 30
25
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
4.6
Thermal Shock Resistance, points 24 to 68
22

Alloy Composition

Aluminum (Al), % 0
1.2 to 1.7
Carbon (C), % 1.3 to 1.4
0 to 0.12
Chromium (Cr), % 3.8 to 4.8
23 to 26
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 75.9 to 81.4
69.7 to 75.1
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.3 to 5.5
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0.7 to 1.4
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 5.3 to 6.5
0
Vanadium (V), % 3.8 to 4.5
0