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SAE-AISI M36 Steel vs. AISI 444 Stainless Steel

Both SAE-AISI M36 steel and AISI 444 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 22 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 M36 steel and the bottom bar is AISI 444 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
78
Tensile Strength: Ultimate (UTS), MPa 810 to 2190
470

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1600
1460
Melting Onset (Solidus), °C 1550
1420
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 19
23
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 38
15
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 9.5
3.4
Embodied Energy, MJ/kg 140
47
Embodied Water, L/kg 140
130

Common Calculations

PREN (Pitting Resistance) 31
26
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 27 to 72
17
Strength to Weight: Bending, points 23 to 44
17
Thermal Diffusivity, mm2/s 5.1
6.2
Thermal Shock Resistance, points 25 to 68
16

Alloy Composition

Carbon (C), % 0.8 to 0.9
0 to 0.025
Chromium (Cr), % 3.8 to 4.5
17.5 to 19.5
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 70.1 to 75.5
73.3 to 80.8
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.6 to 5.5
1.8 to 2.5
Nickel (Ni), % 0 to 0.3
0 to 1.0
Niobium (Nb), % 0
0.2 to 0.8
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8
Tungsten (W), % 5.5 to 6.5
0
Vanadium (V), % 1.8 to 2.3
0