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AISI 312 Stainless Steel vs. ASTM F15 Fe-Ni-Co

Both AISI 312 stainless steel and ASTM F15 Fe-Ni-Co are iron alloys. They have 60% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AISI 312 stainless steel and the bottom bar is ASTM F15 Fe-Ni-Co.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.27
0.3
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 780
520 to 880

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1430
1410
Melting Onset (Solidus), °C 1390
1450
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 16
17
Thermal Expansion, µm/m-K 13
6.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
4.0

Otherwise Unclassified Properties

Base Metal Price, % relative 17
49
Density, g/cm3 7.7
8.3
Embodied Carbon, kg CO2/kg material 3.4
5.2
Embodied Energy, MJ/kg 48
71
Embodied Water, L/kg 170
190

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 28
17 to 29
Strength to Weight: Bending, points 24
17 to 24
Thermal Diffusivity, mm2/s 4.3
4.5
Thermal Shock Resistance, points 21
32 to 55

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0 to 0.030
0 to 0.040
Chromium (Cr), % 24 to 26
0 to 0.2
Cobalt (Co), % 0
16 to 18
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 62.2 to 69.2
50.3 to 56
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 1.2 to 2.0
0 to 0.2
Nickel (Ni), % 5.5 to 6.5
28 to 30
Nitrogen (N), % 0.14 to 0.2
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.1
Zirconium (Zr), % 0
0 to 0.1