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N08330 Stainless Steel vs. SAE-AISI M7 Steel

Both N08330 stainless steel and SAE-AISI M7 steel are iron alloys. They have 48% 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 N08330 stainless steel and the bottom bar is SAE-AISI M7 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 550
760 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Melting Completion (Liquidus), °C 1390
1560
Melting Onset (Solidus), °C 1340
1510
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 12
28
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 32
18
Density, g/cm3 8.0
8.1
Embodied Carbon, kg CO2/kg material 5.4
8.9
Embodied Energy, MJ/kg 77
130
Embodied Water, L/kg 190
100

Common Calculations

PREN (Pitting Resistance) 19
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
26 to 76
Strength to Weight: Bending, points 18
23 to 47
Thermal Diffusivity, mm2/s 3.1
7.8
Thermal Shock Resistance, points 13
24 to 69

Alloy Composition

Carbon (C), % 0 to 0.080
1.0 to 1.1
Chromium (Cr), % 17 to 20
3.5 to 4.0
Copper (Cu), % 0 to 1.0
0 to 0.25
Iron (Fe), % 38.3 to 48.3
79.8 to 83.8
Lead (Pb), % 0 to 0.0050
0
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 0
8.2 to 9.2
Nickel (Ni), % 34 to 37
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.75 to 1.5
0.2 to 0.55
Sulfur (S), % 0 to 0.030
0 to 0.030
Tin (Sn), % 0 to 0.025
0
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0
1.8 to 2.3