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EN 1.4542 Stainless Steel vs. ACI-ASTM CK3MCuN Steel

Both EN 1.4542 stainless steel and ACI-ASTM CK3MCuN steel are iron alloys. They have 75% 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 EN 1.4542 stainless steel and the bottom bar is ACI-ASTM CK3MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 5.7 to 20
39
Fatigue Strength, MPa 370 to 640
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 880 to 1470
620
Tensile Strength: Yield (Proof), MPa 580 to 1300
290

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 860
1090
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1350
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 16
12
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 13
29
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.7
5.6
Embodied Energy, MJ/kg 39
76
Embodied Water, L/kg 130
190

Common Calculations

PREN (Pitting Resistance) 17
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 62 to 160
200
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4360
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31 to 52
21
Strength to Weight: Bending, points 26 to 37
20
Thermal Diffusivity, mm2/s 4.3
3.2
Thermal Shock Resistance, points 29 to 49
14

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.025
Chromium (Cr), % 15 to 17
19.5 to 20.5
Copper (Cu), % 3.0 to 5.0
0.5 to 1.0
Iron (Fe), % 69.6 to 79
49.5 to 56.3
Manganese (Mn), % 0 to 1.5
0 to 1.2
Molybdenum (Mo), % 0 to 0.6
6.0 to 7.0
Nickel (Ni), % 3.0 to 5.0
17.5 to 19.5
Niobium (Nb), % 0 to 0.45
0
Nitrogen (N), % 0
0.18 to 0.24
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010