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EN 1.4724 Stainless Steel vs. ACI-ASTM CK3MCuN Steel

Both EN 1.4724 stainless steel and ACI-ASTM CK3MCuN steel are iron alloys. They have 67% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4724 stainless steel and the bottom bar is ACI-ASTM CK3MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
39
Fatigue Strength, MPa 170
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
80
Tensile Strength: Ultimate (UTS), MPa 550
620
Tensile Strength: Yield (Proof), MPa 280
290

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 850
1090
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1350
Specific Heat Capacity, J/kg-K 490
460
Thermal Conductivity, W/m-K 21
12
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
29
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.0
5.6
Embodied Energy, MJ/kg 28
76
Embodied Water, L/kg 110
190

Common Calculations

PREN (Pitting Resistance) 13
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 73
200
Resilience: Unit (Modulus of Resilience), kJ/m3 210
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
21
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 5.6
3.2
Thermal Shock Resistance, points 19
14

Alloy Composition

Aluminum (Al), % 0.7 to 1.2
0
Carbon (C), % 0 to 0.12
0 to 0.025
Chromium (Cr), % 12 to 14
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 82.2 to 86.6
49.5 to 56.3
Manganese (Mn), % 0 to 1.0
0 to 1.2
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0
17.5 to 19.5
Nitrogen (N), % 0
0.18 to 0.24
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0.7 to 1.4
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010