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EN 1.5663 Steel vs. EN 1.4903 Stainless Steel

Both EN 1.5663 steel and EN 1.4903 stainless steel are iron alloys. They have 90% 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 1.5663 steel and the bottom bar is EN 1.4903 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
20 to 21
Fatigue Strength, MPa 450
320 to 330
Impact Strength: V-Notched Charpy, J 120
42 to 46
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 470
420
Tensile Strength: Ultimate (UTS), MPa 750
670 to 680
Tensile Strength: Yield (Proof), MPa 660
500

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 430
650
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.7
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 9.8
4.0

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
7.0
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 2.3
2.6
Embodied Energy, MJ/kg 31
36
Embodied Water, L/kg 63
88

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 1150
650
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
24
Strength to Weight: Bending, points 23
22
Thermal Shock Resistance, points 22
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.1
0.080 to 0.12
Chromium (Cr), % 0
8.0 to 9.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 88.6 to 91.2
87.1 to 90.5
Manganese (Mn), % 0.3 to 0.8
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.1
0.85 to 1.1
Nickel (Ni), % 8.5 to 10
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.0050
0 to 0.015
Vanadium (V), % 0 to 0.010
0.18 to 0.25