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ACI-ASTM CK35MN Steel vs. EN 1.4404 Stainless Steel

Both ACI-ASTM CK35MN steel and EN 1.4404 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 32 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 ACI-ASTM CK35MN steel and the bottom bar is EN 1.4404 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 40
14 to 43
Fatigue Strength, MPa 270
220 to 320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 650
600 to 900
Tensile Strength: Yield (Proof), MPa 310
240 to 570

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1100
950
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 31
19
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.9
3.8
Embodied Energy, MJ/kg 81
52
Embodied Water, L/kg 210
150

Common Calculations

PREN (Pitting Resistance) 48
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
110 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 240
140 to 800
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
21 to 32
Strength to Weight: Bending, points 21
20 to 26
Thermal Diffusivity, mm2/s 3.3
4.0
Thermal Shock Resistance, points 14
13 to 20

Alloy Composition

Carbon (C), % 0 to 0.035
0 to 0.030
Chromium (Cr), % 22 to 24
16.5 to 18.5
Copper (Cu), % 0 to 0.4
0
Iron (Fe), % 43.4 to 51.8
62.8 to 71.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 6.0 to 6.8
2.0 to 2.5
Nickel (Ni), % 20 to 22
10 to 13
Nitrogen (N), % 0.21 to 0.32
0 to 0.1
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015