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Grade FDC Steel vs. EN 1.4309 Stainless Steel

Both grade FDC steel and EN 1.4309 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade FDC steel and the bottom bar is EN 1.4309 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 510
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 1680
490

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
960
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.1
Embodied Energy, MJ/kg 19
45
Embodied Water, L/kg 47
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 60
18
Strength to Weight: Bending, points 40
18
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 50
11

Alloy Composition

Carbon (C), % 0.6 to 0.75
0 to 0.030
Chromium (Cr), % 0 to 0.3
18 to 20
Copper (Cu), % 0 to 0.12
0
Iron (Fe), % 98 to 99.4
64.2 to 73
Manganese (Mn), % 0.5 to 1.2
0 to 2.0
Nickel (Ni), % 0
9.0 to 12
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.1 to 0.35
0 to 1.5
Sulfur (S), % 0 to 0.025
0 to 0.025