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EN 1.6554 Steel vs. EN 1.4729 Stainless Steel

Both EN 1.6554 steel and EN 1.4729 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.6554 steel and the bottom bar is EN 1.4729 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 280
260
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 21
15
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 420
850
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 40
24
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
7.5
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 1.7
2.1
Embodied Energy, MJ/kg 22
29
Embodied Water, L/kg 53
100

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Thermal Diffusivity, mm2/s 11
6.5

Alloy Composition

Carbon (C), % 0.23 to 0.28
0.3 to 0.5
Chromium (Cr), % 0.7 to 0.9
12 to 14
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 94.6 to 97.3
80.4 to 86.7
Manganese (Mn), % 0.6 to 0.9
0 to 1.0
Molybdenum (Mo), % 0.2 to 0.3
0 to 0.5
Nickel (Ni), % 1.0 to 2.0
0 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.6
1.0 to 2.5
Sulfur (S), % 0 to 0.025
0 to 0.030
Vanadium (V), % 0 to 0.030
0