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EN 1.7076 Steel vs. Grade TDC Steel

Both EN 1.7076 steel and grade TDC steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.7076 steel and the bottom bar is grade TDC steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 170
510
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Reduction in Area, % 64 to 69
50
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 470 to 1700
1700

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
400
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
51
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 51
47

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 60
60
Strength to Weight: Bending, points 17 to 40
40
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 14 to 50
50

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.3 to 0.34
0.6 to 0.75
Chromium (Cr), % 0.9 to 1.2
0 to 0.3
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 97 to 98.2
98 to 99.4
Manganese (Mn), % 0.6 to 0.9
0.5 to 1.2
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.3
0.1 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.020