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Grade FDC Steel vs. EN 1.6958 Steel

Both grade FDC steel and EN 1.6958 steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade FDC steel and the bottom bar is EN 1.6958 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 510
340
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Reduction in Area, % 42
56
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 1680
1140

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
450
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
47
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
2.0
Embodied Energy, MJ/kg 19
27
Embodied Water, L/kg 47
60

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 60
40
Strength to Weight: Bending, points 40
31
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 50
39

Alloy Composition

Aluminum (Al), % 0
0.0050 to 0.050
Carbon (C), % 0.6 to 0.75
0.25 to 0.3
Chromium (Cr), % 0 to 0.3
1.2 to 1.7
Copper (Cu), % 0 to 0.12
0
Iron (Fe), % 98 to 99.4
92.6 to 94.5
Manganese (Mn), % 0.5 to 1.2
0.2 to 0.5
Molybdenum (Mo), % 0
0.35 to 0.55
Nickel (Ni), % 0
3.3 to 3.8
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.1 to 0.35
0.15 to 0.3
Sulfur (S), % 0 to 0.025
0 to 0.015
Vanadium (V), % 0
0 to 0.12