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SAE-AISI M4 Steel vs. EN 1.4596 Stainless Steel

Both SAE-AISI M4 steel and EN 1.4596 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 20 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 1.4596 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
1030 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1610
1450
Melting Onset (Solidus), °C 1560
1410
Specific Heat Capacity, J/kg-K 440
470
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 25
15
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 14
3.5
Embodied Energy, MJ/kg 210
48
Embodied Water, L/kg 110
130

Common Calculations

PREN (Pitting Resistance) 30
19
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 72
36 to 56
Strength to Weight: Bending, points 23 to 45
29 to 39
Thermal Shock Resistance, points 24 to 68
35 to 54

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.1
Carbon (C), % 1.3 to 1.4
0 to 0.015
Chromium (Cr), % 3.8 to 4.8
11.5 to 12.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 75.9 to 81.4
73.4 to 76.4
Manganese (Mn), % 0.15 to 0.4
0 to 0.1
Molybdenum (Mo), % 4.3 to 5.5
1.9 to 2.2
Nickel (Ni), % 0 to 0.3
9.2 to 10.2
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0.2 to 0.45
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.0050
Titanium (Ti), % 0
0.28 to 0.4
Tungsten (W), % 5.3 to 6.5
0
Vanadium (V), % 3.8 to 4.5
0