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EN 1.4423 Stainless Steel vs. EN 1.5638 Steel

Both EN 1.4423 stainless steel and EN 1.5638 steel are iron alloys. Both are furnished in the quenched and tempered condition. They have 82% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4423 stainless steel and the bottom bar is EN 1.5638 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
23
Fatigue Strength, MPa 380
290
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 850
580
Tensile Strength: Yield (Proof), MPa 630
410

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 780
410
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
52
Thermal Expansion, µm/m-K 9.9
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 14
4.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.2
1.7
Embodied Energy, MJ/kg 43
23
Embodied Water, L/kg 120
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
450
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
20
Strength to Weight: Bending, points 25
20
Thermal Diffusivity, mm2/s 4.3
14
Thermal Shock Resistance, points 31
17

Alloy Composition

Carbon (C), % 0 to 0.020
0.060 to 0.12
Chromium (Cr), % 11 to 13
0
Copper (Cu), % 0.2 to 0.8
0
Iron (Fe), % 73.8 to 80.5
94.4 to 96.4
Manganese (Mn), % 0 to 2.0
0.5 to 0.8
Molybdenum (Mo), % 2.3 to 2.8
0
Nickel (Ni), % 6.0 to 7.0
3.0 to 4.0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 0.6
Sulfur (S), % 0 to 0.0030
0 to 0.015