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EN 1.4306 Stainless Steel vs. ACI-ASTM CK3MCuN Steel

Both EN 1.4306 stainless steel and ACI-ASTM CK3MCuN steel are iron alloys. They have 84% 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 1.4306 stainless steel and the bottom bar is ACI-ASTM CK3MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 45
39
Fatigue Strength, MPa 190 to 330
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 580 to 900
620
Tensile Strength: Yield (Proof), MPa 210 to 570
290

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 960
1090
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1350
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 16
29
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.2
5.6
Embodied Energy, MJ/kg 45
76
Embodied Water, L/kg 150
190

Common Calculations

PREN (Pitting Resistance) 20
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 200
200
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 820
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 32
21
Strength to Weight: Bending, points 20 to 27
20
Thermal Diffusivity, mm2/s 4.0
3.2
Thermal Shock Resistance, points 13 to 20
14

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.025
Chromium (Cr), % 18 to 20
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 64.8 to 72
49.5 to 56.3
Manganese (Mn), % 0 to 2.0
0 to 1.2
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 10 to 12
17.5 to 19.5
Nitrogen (N), % 0 to 0.1
0.18 to 0.24
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010