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ACI-ASTM CC50 Steel vs. ASTM A387 Grade 12 Steel

Both ACI-ASTM CC50 steel and ASTM A387 grade 12 steel are iron alloys. They have 70% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CC50 steel and the bottom bar is ASTM A387 grade 12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
140 to 160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 430
470 to 520

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
430
Melting Completion (Liquidus), °C 1420
1470
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
44
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 14
2.8
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.6
Embodied Energy, MJ/kg 39
21
Embodied Water, L/kg 170
51

Common Calculations

PREN (Pitting Resistance) 28
2.7
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 16
16 to 18
Strength to Weight: Bending, points 17
17 to 18
Thermal Diffusivity, mm2/s 4.5
12
Thermal Shock Resistance, points 14
14 to 15

Alloy Composition

Carbon (C), % 0 to 0.5
0.050 to 0.17
Chromium (Cr), % 26 to 30
0.8 to 1.2
Iron (Fe), % 62.9 to 74
97 to 98.2
Manganese (Mn), % 0 to 1.0
0.4 to 0.65
Molybdenum (Mo), % 0
0.45 to 0.6
Nickel (Ni), % 0 to 4.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.5
0.15 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.025