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SAE-AISI M44 Steel vs. EN 1.4646 Stainless Steel

Both SAE-AISI M44 steel and EN 1.4646 stainless steel are iron alloys. They have 69% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M44 steel and the bottom bar is EN 1.4646 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 78
77
Tensile Strength: Ultimate (UTS), MPa 870 to 2290
750

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1590
1390
Melting Onset (Solidus), °C 1540
1340
Specific Heat Capacity, J/kg-K 440
480
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 43
13
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 9.9
2.8
Embodied Energy, MJ/kg 150
41
Embodied Water, L/kg 170
160

Common Calculations

PREN (Pitting Resistance) 35
23
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 28 to 75
27
Strength to Weight: Bending, points 24 to 46
24
Thermal Shock Resistance, points 27 to 70
16

Alloy Composition

Carbon (C), % 1.1 to 1.2
0.020 to 0.1
Chromium (Cr), % 4.0 to 4.8
17 to 19
Cobalt (Co), % 11 to 12.3
0
Copper (Cu), % 0 to 0.25
1.5 to 3.0
Iron (Fe), % 65.3 to 70.6
59 to 67.3
Manganese (Mn), % 0.2 to 0.4
10.5 to 12.5
Molybdenum (Mo), % 6.0 to 7.0
0 to 0.5
Nickel (Ni), % 0 to 0.3
3.5 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.050
Silicon (Si), % 0.3 to 0.55
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 5.0 to 5.8
0
Vanadium (V), % 1.9 to 2.2
0