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ACI-ASTM CN7M Steel vs. N08367 Stainless Steel

Both ACI-ASTM CN7M steel and N08367 stainless 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 (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN7M steel and the bottom bar is N08367 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
210
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 44
34
Fatigue Strength, MPa 190
280
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 480
740
Tensile Strength: Yield (Proof), MPa 200
350

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 1410
1460
Melting Onset (Solidus), °C 1450
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 21
12
Thermal Expansion, µm/m-K 15
15

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

PREN (Pitting Resistance) 29
46
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
210
Resilience: Unit (Modulus of Resilience), kJ/m3 110
290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
25
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 5.6
3.2
Thermal Shock Resistance, points 12
17

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 19 to 22
20 to 22
Copper (Cu), % 3.0 to 4.0
0 to 0.75
Iron (Fe), % 37.4 to 48.5
41.4 to 50.3
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 2.0 to 3.0
6.0 to 7.0
Nickel (Ni), % 27.5 to 30.5
23.5 to 25.5
Nitrogen (N), % 0
0.18 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030