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EN 1.4658 Stainless Steel vs. Grade FDC Steel

Both EN 1.4658 stainless steel and grade FDC steel are iron alloys. They have 59% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is EN 1.4658 stainless steel and the bottom bar is grade FDC steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
510
Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
80
Tensile Strength: Ultimate (UTS), MPa 900
1680

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
51
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 25
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.5
1.4
Embodied Energy, MJ/kg 61
19
Embodied Water, L/kg 200
47

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32
60
Strength to Weight: Bending, points 26
40
Thermal Diffusivity, mm2/s 4.3
14
Thermal Shock Resistance, points 24
50

Alloy Composition

Carbon (C), % 0 to 0.030
0.6 to 0.75
Chromium (Cr), % 26 to 29
0 to 0.3
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
0 to 0.12
Iron (Fe), % 50.9 to 63.7
98 to 99.4
Manganese (Mn), % 0 to 1.5
0.5 to 1.2
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 5.5 to 9.5
0
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 0.5
0.1 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.025