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ACI-ASTM CK3MCuN Steel vs. S44536 Stainless Steel

Both ACI-ASTM CK3MCuN steel and S44536 stainless steel are iron alloys. They have 74% 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 ACI-ASTM CK3MCuN steel and the bottom bar is S44536 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
22
Fatigue Strength, MPa 250
190
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 620
460
Tensile Strength: Yield (Proof), MPa 290
280

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
560
Maximum Temperature: Mechanical, °C 1090
990
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1350
1390
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 12
21
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 29
13
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 5.6
2.8
Embodied Energy, MJ/kg 76
41
Embodied Water, L/kg 190
140

Common Calculations

PREN (Pitting Resistance) 45
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
89
Resilience: Unit (Modulus of Resilience), kJ/m3 210
200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
17
Strength to Weight: Bending, points 20
17
Thermal Diffusivity, mm2/s 3.2
5.6
Thermal Shock Resistance, points 14
16

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.015
Chromium (Cr), % 19.5 to 20.5
20 to 23
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 49.5 to 56.3
72.8 to 80
Manganese (Mn), % 0 to 1.2
0 to 1.0
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 17.5 to 19.5
0 to 0.5
Niobium (Nb), % 0
0.050 to 0.8
Nitrogen (N), % 0.18 to 0.24
0 to 0.015
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0
0 to 0.8