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EN 1.4903 Stainless Steel vs. EN 1.5662 Steel

Both EN 1.4903 stainless steel and EN 1.5662 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 (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4903 stainless steel and the bottom bar is EN 1.5662 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 21
20
Fatigue Strength, MPa 320 to 330
380 to 450
Impact Strength: V-Notched Charpy, J 42 to 46
91 to 130
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 420
460 to 470
Tensile Strength: Ultimate (UTS), MPa 670 to 680
740 to 750
Tensile Strength: Yield (Proof), MPa 500
550 to 660

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.080 to 0.12
0 to 0.1
Chromium (Cr), % 8.0 to 9.5
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 87.1 to 90.5
88.6 to 91.2
Manganese (Mn), % 0.3 to 0.6
0.3 to 0.8
Molybdenum (Mo), % 0.85 to 1.1
0 to 0.1
Nickel (Ni), % 0 to 0.4
8.5 to 10
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.0050
Vanadium (V), % 0.18 to 0.25
0 to 0.050

Comparable Variants