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ACI-ASTM CK35MN Steel vs. ASTM A356 Grade 5

Both ACI-ASTM CK35MN steel and ASTM A356 grade 5 are iron alloys. Both are furnished in the heat treated (HT) condition. They have 49% of their average alloy composition in common. There are 31 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 ASTM A356 grade 5.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
170
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 40
25
Fatigue Strength, MPa 270
230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
73
Tensile Strength: Ultimate (UTS), MPa 650
550
Tensile Strength: Yield (Proof), MPa 310
310

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
49
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
2.6
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.9
1.5
Embodied Energy, MJ/kg 81
20
Embodied Water, L/kg 210
49

Common Calculations

PREN (Pitting Resistance) 48
2.2
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
120
Resilience: Unit (Modulus of Resilience), kJ/m3 240
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
20
Strength to Weight: Bending, points 21
19
Thermal Diffusivity, mm2/s 3.3
13
Thermal Shock Resistance, points 14
16

Alloy Composition

Carbon (C), % 0 to 0.035
0 to 0.25
Chromium (Cr), % 22 to 24
0.4 to 0.7
Copper (Cu), % 0 to 0.4
0
Iron (Fe), % 43.4 to 51.8
97.1 to 99.2
Manganese (Mn), % 0 to 2.0
0 to 0.7
Molybdenum (Mo), % 6.0 to 6.8
0.4 to 0.6
Nickel (Ni), % 20 to 22
0
Nitrogen (N), % 0.21 to 0.32
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.020
0 to 0.030