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ACI-ASTM CK35MN Steel vs. EN 1.4640 Stainless Steel

Both ACI-ASTM CK35MN steel and EN 1.4640 stainless steel are iron alloys. They have 74% 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 ACI-ASTM CK35MN steel and the bottom bar is EN 1.4640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190 to 200
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 40
51
Fatigue Strength, MPa 270
230 to 250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
77
Tensile Strength: Ultimate (UTS), MPa 650
620 to 650
Tensile Strength: Yield (Proof), MPa 310
240 to 260

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1100
930
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 31
14
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.9
2.8
Embodied Energy, MJ/kg 81
40
Embodied Water, L/kg 210
150

Common Calculations

PREN (Pitting Resistance) 48
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
250 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 240
150 to 170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
22 to 23
Strength to Weight: Bending, points 21
21
Thermal Diffusivity, mm2/s 3.3
4.0
Thermal Shock Resistance, points 14
14 to 15

Alloy Composition

Carbon (C), % 0 to 0.035
0.030 to 0.080
Chromium (Cr), % 22 to 24
18 to 19
Copper (Cu), % 0 to 0.4
1.3 to 2.0
Iron (Fe), % 43.4 to 51.8
67.4 to 73.6
Manganese (Mn), % 0 to 2.0
1.5 to 4.0
Molybdenum (Mo), % 6.0 to 6.8
0
Nickel (Ni), % 20 to 22
5.5 to 6.9
Nitrogen (N), % 0.21 to 0.32
0.030 to 0.11
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.015