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EN 1.6554 Steel vs. EN 1.4347 Stainless Steel

Both EN 1.6554 steel and EN 1.4347 stainless steel are iron alloys. They have 69% 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 1.4347 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17 to 21
23
Fatigue Strength, MPa 380 to 520
320
Impact Strength: V-Notched Charpy, J 30 to 45
34
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 780 to 930
660
Tensile Strength: Yield (Proof), MPa 550 to 790
480

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 420
1100
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 40
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
16
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.7
3.1
Embodied Energy, MJ/kg 22
44
Embodied Water, L/kg 53
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
140
Resilience: Unit (Modulus of Resilience), kJ/m3 810 to 1650
570
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 33
24
Strength to Weight: Bending, points 24 to 27
22
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 23 to 27
19

Alloy Composition

Carbon (C), % 0.23 to 0.28
0 to 0.050
Chromium (Cr), % 0.7 to 0.9
25 to 27
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 94.6 to 97.3
62.2 to 69.4
Manganese (Mn), % 0.6 to 0.9
0 to 1.5
Molybdenum (Mo), % 0.2 to 0.3
0
Nickel (Ni), % 1.0 to 2.0
5.5 to 7.5
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.6
0 to 1.5
Sulfur (S), % 0 to 0.025
0 to 0.020
Vanadium (V), % 0 to 0.030
0