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EN 1.3961 Alloy vs. SAE-AISI M4 Steel

Both EN 1.3961 alloy and SAE-AISI M4 steel 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 EN 1.3961 alloy and the bottom bar is SAE-AISI M4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 25
25
Density, g/cm3 8.2
8.3
Embodied Carbon, kg CO2/kg material 4.8
14
Embodied Energy, MJ/kg 66
210
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 15
26 to 72
Strength to Weight: Bending, points 16
23 to 45
Thermal Shock Resistance, points 130
24 to 68

Alloy Composition

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