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EN 1.4303 Stainless Steel vs. EN 1.5663 Steel

Both EN 1.4303 stainless steel and EN 1.5663 steel are iron alloys. They have 78% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4303 stainless steel and the bottom bar is EN 1.5663 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 13 to 49
20
Fatigue Strength, MPa 220 to 320
450
Impact Strength: V-Notched Charpy, J 91 to 98
120
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 420 to 540
470
Tensile Strength: Ultimate (UTS), MPa 590 to 900
750
Tensile Strength: Yield (Proof), MPa 230 to 560
660

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
430
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
8.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
9.8

Otherwise Unclassified Properties

Base Metal Price, % relative 17
7.5
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.2
2.3
Embodied Energy, MJ/kg 46
31
Embodied Water, L/kg 150
63

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 230
150
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 800
1150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 32
26
Strength to Weight: Bending, points 20 to 26
23
Thermal Shock Resistance, points 13 to 20
22

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.1
Chromium (Cr), % 17 to 19
0
Iron (Fe), % 64.8 to 72
88.6 to 91.2
Manganese (Mn), % 0 to 2.0
0.3 to 0.8
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 11 to 13
8.5 to 10
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.0050
Vanadium (V), % 0
0 to 0.010