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ACI-ASTM CK3MCuN Steel vs. EN 1.4901 Stainless Steel

Both ACI-ASTM CK3MCuN steel and EN 1.4901 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 31 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 CK3MCuN steel and the bottom bar is EN 1.4901 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
19
Fatigue Strength, MPa 250
310
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 620
740
Tensile Strength: Yield (Proof), MPa 290
490

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Maximum Temperature: Corrosion, °C 420
380
Maximum Temperature: Mechanical, °C 1090
650
Melting Completion (Liquidus), °C 1460
1490
Melting Onset (Solidus), °C 1350
1450
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 12
26
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 29
11
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.6
2.8
Embodied Energy, MJ/kg 76
40
Embodied Water, L/kg 190
89

Common Calculations

PREN (Pitting Resistance) 45
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
120
Resilience: Unit (Modulus of Resilience), kJ/m3 210
620
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
26
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 3.2
6.9
Thermal Shock Resistance, points 14
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.0010 to 0.0060
Carbon (C), % 0 to 0.025
0.070 to 0.13
Chromium (Cr), % 19.5 to 20.5
8.5 to 9.5
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 49.5 to 56.3
85.8 to 89.1
Manganese (Mn), % 0 to 1.2
0.3 to 0.6
Molybdenum (Mo), % 6.0 to 7.0
0.3 to 0.6
Nickel (Ni), % 17.5 to 19.5
0 to 0.4
Niobium (Nb), % 0
0.040 to 0.090
Nitrogen (N), % 0.18 to 0.24
0.030 to 0.070
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
1.5 to 2.0
Vanadium (V), % 0
0.15 to 0.25
Zirconium (Zr), % 0
0 to 0.010