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ACI-ASTM CK3MCuN Steel vs. N08926 Stainless Steel

Both ACI-ASTM CK3MCuN steel and N08926 stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 31 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 ACI-ASTM CK3MCuN steel and the bottom bar is N08926 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
40
Fatigue Strength, MPa 250
290
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 620
740
Tensile Strength: Yield (Proof), MPa 290
330

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 1090
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 460
460
Thermal Conductivity, W/m-K 12
12
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 29
33
Density, g/cm3 8.0
8.1
Embodied Carbon, kg CO2/kg material 5.6
6.2
Embodied Energy, MJ/kg 76
84
Embodied Water, L/kg 190
200

Common Calculations

PREN (Pitting Resistance) 45
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
240
Resilience: Unit (Modulus of Resilience), kJ/m3 210
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
25
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 3.2
3.2
Thermal Shock Resistance, points 14
16

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.020
Chromium (Cr), % 19.5 to 20.5
19 to 21
Copper (Cu), % 0.5 to 1.0
0.5 to 1.5
Iron (Fe), % 49.5 to 56.3
41.7 to 50.4
Manganese (Mn), % 0 to 1.2
0 to 2.0
Molybdenum (Mo), % 6.0 to 7.0
6.0 to 7.0
Nickel (Ni), % 17.5 to 19.5
24 to 26
Nitrogen (N), % 0.18 to 0.24
0.15 to 0.25
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.010