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ACI-ASTM CK35MN Steel vs. ACI-ASTM CA15M Steel

Both ACI-ASTM CK35MN steel and ACI-ASTM CA15M steel are iron alloys. Both are furnished in the heat treated (HT) condition. They have 62% 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 ACI-ASTM CA15M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
210
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 40
20
Fatigue Strength, MPa 270
330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
76
Tensile Strength: Ultimate (UTS), MPa 650
690
Tensile Strength: Yield (Proof), MPa 310
510

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 440
390
Maximum Temperature: Mechanical, °C 1100
760
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
27
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 31
7.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.9
2.1
Embodied Energy, MJ/kg 81
29
Embodied Water, L/kg 210
100

Common Calculations

PREN (Pitting Resistance) 48
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
130
Resilience: Unit (Modulus of Resilience), kJ/m3 240
670
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
25
Strength to Weight: Bending, points 21
22
Thermal Diffusivity, mm2/s 3.3
7.2
Thermal Shock Resistance, points 14
25

Alloy Composition

Carbon (C), % 0 to 0.035
0 to 0.15
Chromium (Cr), % 22 to 24
11.5 to 14
Copper (Cu), % 0 to 0.4
0
Iron (Fe), % 43.4 to 51.8
82.1 to 88.4
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 6.0 to 6.8
0.15 to 1.0
Nickel (Ni), % 20 to 22
0 to 1.0
Nitrogen (N), % 0.21 to 0.32
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.65
Sulfur (S), % 0 to 0.020
0 to 0.040