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ACI-ASTM CT15C Steel vs. EN 1.7706 Steel

Both ACI-ASTM CT15C steel and EN 1.7706 steel are iron alloys. They have 47% 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 CT15C steel and the bottom bar is EN 1.7706 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
17
Fatigue Strength, MPa 130
330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 500
690
Tensile Strength: Yield (Proof), MPa 190
500

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Maximum Temperature: Mechanical, °C 1080
440
Melting Completion (Liquidus), °C 1410
1470
Melting Onset (Solidus), °C 1360
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
40
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 36
3.7
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 6.1
2.3
Embodied Energy, MJ/kg 88
32
Embodied Water, L/kg 190
57

Common Calculations

PREN (Pitting Resistance) 20
4.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
110
Resilience: Unit (Modulus of Resilience), kJ/m3 93
670
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
24
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 3.2
11
Thermal Shock Resistance, points 12
20

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.15 to 0.2
Chromium (Cr), % 19 to 21
1.2 to 1.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 40.3 to 49.2
94.7 to 97.1
Manganese (Mn), % 0.15 to 1.5
0.5 to 0.9
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 31 to 34
0 to 0.4
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.15 to 1.5
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0
0.2 to 0.3