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ACI-ASTM CT15C Steel vs. EN 1.7709 Steel

Both ACI-ASTM CT15C steel and EN 1.7709 steel are iron alloys. They have 47% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CT15C steel and the bottom bar is EN 1.7709 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
200 to 230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 500
650 to 780

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1080
440
Melting Completion (Liquidus), °C 1410
1470
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
33
Thermal Expansion, µm/m-K 16
11

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 36
3.4
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 6.1
2.3
Embodied Energy, MJ/kg 88
32
Embodied Water, L/kg 190
56

Common Calculations

PREN (Pitting Resistance) 20
3.6
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
23 to 27
Strength to Weight: Bending, points 17
21 to 24
Thermal Diffusivity, mm2/s 3.2
8.9
Thermal Shock Resistance, points 12
22 to 26

Alloy Composition

Aluminum (Al), % 0
0 to 0.030
Carbon (C), % 0.050 to 0.15
0.17 to 0.25
Chromium (Cr), % 19 to 21
1.2 to 1.5
Iron (Fe), % 40.3 to 49.2
95.2 to 97.5
Manganese (Mn), % 0.15 to 1.5
0.4 to 0.8
Molybdenum (Mo), % 0
0.55 to 0.8
Nickel (Ni), % 31 to 34
0 to 0.6
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.15 to 1.5
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0.2 to 0.35