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ACI-ASTM CK35MN Steel vs. ACI-ASTM CE8MN Steel

Both ACI-ASTM CK35MN steel and ACI-ASTM CE8MN steel are iron alloys. They have 85% of their average alloy composition in common. There are 31 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 ACI-ASTM CE8MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 40
29
Fatigue Strength, MPa 270
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 81
80
Tensile Strength: Ultimate (UTS), MPa 650
750
Tensile Strength: Yield (Proof), MPa 310
500

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 440
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
16
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 31
21
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.9
4.2
Embodied Energy, MJ/kg 81
58
Embodied Water, L/kg 210
180

Common Calculations

PREN (Pitting Resistance) 48
40
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
190
Resilience: Unit (Modulus of Resilience), kJ/m3 240
620
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
27
Strength to Weight: Bending, points 21
23
Thermal Diffusivity, mm2/s 3.3
4.2
Thermal Shock Resistance, points 14
21

Alloy Composition

Carbon (C), % 0 to 0.035
0 to 0.080
Chromium (Cr), % 22 to 24
22.5 to 25.5
Copper (Cu), % 0 to 0.4
0
Iron (Fe), % 43.4 to 51.8
56 to 66.4
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 6.0 to 6.8
3.0 to 4.5
Nickel (Ni), % 20 to 22
8.0 to 11
Nitrogen (N), % 0.21 to 0.32
0.1 to 0.3
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.020
0 to 0.040