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SAE-AISI M4 Steel vs. EN 1.4962 Stainless Steel

Both SAE-AISI M4 steel and EN 1.4962 stainless steel are iron alloys. They have 73% 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 1.4962 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
77
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
630 to 690

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1610
1480
Melting Onset (Solidus), °C 1560
1440
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 25
14
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 25
23
Density, g/cm3 8.3
8.1
Embodied Carbon, kg CO2/kg material 14
4.1
Embodied Energy, MJ/kg 210
59
Embodied Water, L/kg 110
150

Common Calculations

PREN (Pitting Resistance) 30
21
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 72
21 to 24
Strength to Weight: Bending, points 23 to 45
20 to 21
Thermal Diffusivity, mm2/s 6.9
3.7
Thermal Shock Resistance, points 24 to 68
14 to 16

Alloy Composition

Boron (B), % 0
0.0015 to 0.0060
Carbon (C), % 1.3 to 1.4
0.070 to 0.15
Chromium (Cr), % 3.8 to 4.8
15.5 to 17.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 75.9 to 81.4
62.1 to 69
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Molybdenum (Mo), % 4.3 to 5.5
0
Nickel (Ni), % 0 to 0.3
12.5 to 14.5
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.2 to 0.45
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.4 to 0.7
Tungsten (W), % 5.3 to 6.5
2.5 to 3.0
Vanadium (V), % 3.8 to 4.5
0