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N08366 Stainless Steel vs. ACI-ASTM CN7M Steel

Both N08366 stainless steel and ACI-ASTM CN7M steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is N08366 stainless steel and the bottom bar is ACI-ASTM CN7M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
140
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 34
44
Fatigue Strength, MPa 190
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 590
480
Tensile Strength: Yield (Proof), MPa 240
200

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 430
430
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1410
1450
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 13
21
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 33
32
Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 6.2
5.6
Embodied Energy, MJ/kg 84
78
Embodied Water, L/kg 200
210

Common Calculations

PREN (Pitting Resistance) 42
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
170
Resilience: Unit (Modulus of Resilience), kJ/m3 150
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
17
Strength to Weight: Bending, points 19
17
Thermal Diffusivity, mm2/s 3.4
5.6
Thermal Shock Resistance, points 13
12

Alloy Composition

Carbon (C), % 0 to 0.035
0 to 0.070
Chromium (Cr), % 20 to 22
19 to 22
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 42.4 to 50.5
37.4 to 48.5
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 6.0 to 7.0
2.0 to 3.0
Nickel (Ni), % 23.5 to 25.5
27.5 to 30.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040