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ACI-ASTM CK35MN Steel vs. ASTM A182 Grade F12 Class 2

Both ACI-ASTM CK35MN steel and ASTM A182 grade F12 class 2 are iron alloys. They have 50% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CK35MN steel and the bottom bar is ASTM A182 grade F12 class 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
180
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 40
22
Fatigue Strength, MPa 270
220
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
73
Tensile Strength: Ultimate (UTS), MPa 650
540
Tensile Strength: Yield (Proof), MPa 310
310

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
430
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
43
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 31
2.8
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.9
1.6
Embodied Energy, MJ/kg 81
21
Embodied Water, L/kg 210
52

Common Calculations

PREN (Pitting Resistance) 48
2.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
100
Resilience: Unit (Modulus of Resilience), kJ/m3 240
260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
19
Strength to Weight: Bending, points 21
19
Thermal Diffusivity, mm2/s 3.3
12
Thermal Shock Resistance, points 14
16

Alloy Composition

Carbon (C), % 0 to 0.035
0.1 to 0.2
Chromium (Cr), % 22 to 24
0.8 to 1.3
Copper (Cu), % 0 to 0.4
0
Iron (Fe), % 43.4 to 51.8
96.4 to 98.3
Manganese (Mn), % 0 to 2.0
0.3 to 0.8
Molybdenum (Mo), % 6.0 to 6.8
0.44 to 0.65
Nickel (Ni), % 20 to 22
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
0.1 to 0.6
Sulfur (S), % 0 to 0.020
0 to 0.040