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ACI-ASTM CK3MCuN Steel vs. EN 1.3975 Stainless Steel

Both ACI-ASTM CK3MCuN steel and EN 1.3975 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 1.3975 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
27
Fatigue Strength, MPa 250
230
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 620
660
Tensile Strength: Yield (Proof), MPa 290
320

Thermal Properties

Latent Heat of Fusion, J/g 300
340
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 1090
910
Melting Completion (Liquidus), °C 1460
1360
Melting Onset (Solidus), °C 1350
1320
Specific Heat Capacity, J/kg-K 460
500
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 29
15
Density, g/cm3 8.0
7.5
Embodied Carbon, kg CO2/kg material 5.6
3.3
Embodied Energy, MJ/kg 76
47
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 45
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
150
Resilience: Unit (Modulus of Resilience), kJ/m3 210
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 21
24
Strength to Weight: Bending, points 20
22
Thermal Shock Resistance, points 14
15

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.050
Chromium (Cr), % 19.5 to 20.5
16 to 18
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 49.5 to 56.3
58.2 to 65.4
Manganese (Mn), % 0 to 1.2
7.0 to 9.0
Molybdenum (Mo), % 6.0 to 7.0
0 to 1.0
Nickel (Ni), % 17.5 to 19.5
8.0 to 9.0
Nitrogen (N), % 0.18 to 0.24
0.080 to 0.18
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
3.5 to 4.5
Sulfur (S), % 0 to 0.010
0 to 0.030