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AISI 384 Stainless Steel vs. SAE-AISI M6 Steel

Both AISI 384 stainless steel and SAE-AISI M6 steel are iron alloys. They have 69% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 384 stainless steel and the bottom bar is SAE-AISI M6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 480
840 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1420
1560
Melting Onset (Solidus), °C 1380
1510
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 16
17
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 20
39
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 3.7
8.0
Embodied Energy, MJ/kg 52
120
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 16
28
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 17
28 to 73
Strength to Weight: Bending, points 17
24 to 45
Thermal Diffusivity, mm2/s 4.3
4.7
Thermal Shock Resistance, points 11
26 to 68

Alloy Composition

Carbon (C), % 0 to 0.040
0.75 to 0.85
Chromium (Cr), % 15 to 17
3.8 to 4.5
Cobalt (Co), % 0
11 to 13
Iron (Fe), % 60.9 to 68
68.8 to 74.6
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 0
4.5 to 5.5
Nickel (Ni), % 17 to 19
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
3.8 to 4.8
Vanadium (V), % 0
1.3 to 1.7