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SAE-AISI M4 Steel vs. EN 1.3538 Steel

Both SAE-AISI M4 steel and EN 1.3538 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 (4, 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 1.3538 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
670 to 740

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1610
1450
Melting Onset (Solidus), °C 1560
1410
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 25
41
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 25
3.0
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 14
1.6
Embodied Energy, MJ/kg 210
21
Embodied Water, L/kg 110
56

Common Calculations

PREN (Pitting Resistance) 30
3.3
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 72
24 to 26
Strength to Weight: Bending, points 23 to 45
22 to 23
Thermal Diffusivity, mm2/s 6.9
11
Thermal Shock Resistance, points 24 to 68
20 to 22

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 1.3 to 1.4
0.93 to 1.1
Chromium (Cr), % 3.8 to 4.8
1.7 to 2.0
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 75.9 to 81.4
96 to 97.2
Manganese (Mn), % 0.15 to 0.4
0.6 to 0.8
Molybdenum (Mo), % 4.3 to 5.5
0.4 to 0.5
Nickel (Ni), % 0 to 0.3
0
Oxygen (O), % 0
0 to 0.0015
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.2 to 0.45
0.15 to 0.35
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