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EN 1.6554 Steel vs. EN 1.4317 Stainless Steel

Both EN 1.6554 steel and EN 1.4317 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 1.4317 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 21
17
Fatigue Strength, MPa 380 to 520
380
Impact Strength: V-Notched Charpy, J 30 to 45
56
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 780 to 930
860
Tensile Strength: Yield (Proof), MPa 550 to 790
630

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 420
770
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
26
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
10
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.4
Embodied Energy, MJ/kg 22
33
Embodied Water, L/kg 53
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
130
Resilience: Unit (Modulus of Resilience), kJ/m3 810 to 1650
1010
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 33
31
Strength to Weight: Bending, points 24 to 27
26
Thermal Diffusivity, mm2/s 11
7.0
Thermal Shock Resistance, points 23 to 27
30

Alloy Composition

Carbon (C), % 0.23 to 0.28
0 to 0.060
Chromium (Cr), % 0.7 to 0.9
12 to 13.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 94.6 to 97.3
78.7 to 84.5
Manganese (Mn), % 0.6 to 0.9
0 to 1.0
Molybdenum (Mo), % 0.2 to 0.3
0 to 0.7
Nickel (Ni), % 1.0 to 2.0
3.5 to 5.0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.025
Vanadium (V), % 0 to 0.030
0