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EN 1.4123 Stainless Steel vs. EN 1.6554 Steel

Both EN 1.4123 stainless steel and EN 1.6554 steel are iron alloys. They have 83% of their average alloy composition in common. There are 25 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 EN 1.4123 stainless steel and the bottom bar is EN 1.6554 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
230 to 280
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 720 to 810
780 to 930

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 840
420
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
40
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
3.4
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 4.2
1.7
Embodied Energy, MJ/kg 62
22
Embodied Water, L/kg 120
53

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 29
27 to 33
Strength to Weight: Bending, points 23 to 25
24 to 27
Thermal Diffusivity, mm2/s 6.3
11
Thermal Shock Resistance, points 26 to 29
23 to 27

Alloy Composition

Carbon (C), % 0.35 to 0.5
0.23 to 0.28
Chromium (Cr), % 14 to 16.5
0.7 to 0.9
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 76.7 to 84.6
94.6 to 97.3
Manganese (Mn), % 0 to 1.0
0.6 to 0.9
Molybdenum (Mo), % 1.0 to 2.5
0.2 to 0.3
Nickel (Ni), % 0 to 0.5
1.0 to 2.0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.025
Vanadium (V), % 0 to 1.5
0 to 0.030

Comparable Variants