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ASTM A182 Grade FR vs. ACI-ASTM CT15C Steel

Both ASTM A182 grade FR and ACI-ASTM CT15C steel are iron alloys. They have 48% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A182 grade FR and the bottom bar is ACI-ASTM CT15C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 28
23
Fatigue Strength, MPa 270
130
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Tensile Strength: Ultimate (UTS), MPa 490
500
Tensile Strength: Yield (Proof), MPa 360
190

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 410
1080
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 3.3
36
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.6
6.1
Embodied Energy, MJ/kg 21
88
Embodied Water, L/kg 52
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
90
Resilience: Unit (Modulus of Resilience), kJ/m3 340
93
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 17
17
Thermal Diffusivity, mm2/s 14
3.2
Thermal Shock Resistance, points 14
12

Alloy Composition

Carbon (C), % 0 to 0.2
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 0.75 to 1.3
0
Iron (Fe), % 95.2 to 97.3
40.3 to 49.2
Manganese (Mn), % 0.4 to 1.1
0.15 to 1.5
Nickel (Ni), % 1.6 to 2.2
31 to 34
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0
0.15 to 1.5
Sulfur (S), % 0 to 0.050
0 to 0.030