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EN 1.4347 Stainless Steel vs. EN 1.6553 Steel

Both EN 1.4347 stainless steel and EN 1.6553 steel are iron alloys. They have 68% 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 1.4347 stainless steel and the bottom bar is EN 1.6553 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
19 to 21
Fatigue Strength, MPa 320
330 to 460
Impact Strength: V-Notched Charpy, J 34
30
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 660
710 to 800
Tensile Strength: Yield (Proof), MPa 480
470 to 670

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 15
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 16
2.7
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.6
Embodied Energy, MJ/kg 44
21
Embodied Water, L/kg 170
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
130 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 570
600 to 1190
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
25 to 28
Strength to Weight: Bending, points 22
23 to 24
Thermal Diffusivity, mm2/s 4.0
10
Thermal Shock Resistance, points 19
21 to 23

Alloy Composition

Carbon (C), % 0 to 0.050
0.23 to 0.28
Chromium (Cr), % 25 to 27
0.4 to 0.8
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 62.2 to 69.4
95.6 to 98.2
Manganese (Mn), % 0 to 1.5
0.6 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.3
Nickel (Ni), % 5.5 to 7.5
0.4 to 0.8
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.5
0 to 0.8
Sulfur (S), % 0 to 0.020
0 to 0.025
Vanadium (V), % 0
0 to 0.030