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ASTM A387 Grade 9 Steel vs. ACI-ASTM CC50 Steel

Both ASTM A387 grade 9 steel and ACI-ASTM CC50 steel are iron alloys. They have 79% 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 ASTM A387 grade 9 steel and the bottom bar is ACI-ASTM CC50 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
80
Tensile Strength: Ultimate (UTS), MPa 500 to 600
430

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Mechanical, °C 600
1100
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 26
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
14
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 2.1
2.7
Embodied Energy, MJ/kg 28
39
Embodied Water, L/kg 87
170

Common Calculations

PREN (Pitting Resistance) 12
28
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 18 to 21
16
Strength to Weight: Bending, points 18 to 20
17
Thermal Diffusivity, mm2/s 6.9
4.5
Thermal Shock Resistance, points 14 to 17
14

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.5
Chromium (Cr), % 8.0 to 10
26 to 30
Iron (Fe), % 87.1 to 90.8
62.9 to 74
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0
0 to 4.0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.025
0 to 0.040
Vanadium (V), % 0 to 0.040
0