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SAE-AISI M4 Steel vs. EN 1.3961 Alloy

Both SAE-AISI M4 steel and EN 1.3961 alloy are iron alloys. They have 64% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (8, 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 1.3961 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 76
72
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
450

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1610
1430
Melting Onset (Solidus), °C 1560
1390
Specific Heat Capacity, J/kg-K 440
460
Thermal Expansion, µm/m-K 12
1.3

Otherwise Unclassified Properties

Base Metal Price, % relative 25
25
Density, g/cm3 8.3
8.2
Embodied Carbon, kg CO2/kg material 14
4.8
Embodied Energy, MJ/kg 210
66
Embodied Water, L/kg 110
110

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 26 to 72
15
Strength to Weight: Bending, points 23 to 45
16
Thermal Shock Resistance, points 24 to 68
130

Alloy Composition

Carbon (C), % 1.3 to 1.4
0 to 0.050
Chromium (Cr), % 3.8 to 4.8
0 to 0.25
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 75.9 to 81.4
60.7 to 65
Manganese (Mn), % 0.15 to 0.4
0 to 0.5
Molybdenum (Mo), % 4.3 to 5.5
0 to 1.0
Nickel (Ni), % 0 to 0.3
35 to 37
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.45
0 to 0.5
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