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EN 1.4568 Stainless Steel vs. EN 1.5503 Steel

Both EN 1.4568 stainless steel and EN 1.5503 steel are iron alloys. They have 75% 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 1.4568 stainless steel and the bottom bar is EN 1.5503 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 2.3 to 21
12 to 17
Fatigue Strength, MPa 220 to 670
180 to 280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 520 to 930
270 to 320
Tensile Strength: Ultimate (UTS), MPa 830 to 1620
400 to 520
Tensile Strength: Yield (Proof), MPa 330 to 1490
270 to 430

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 890
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
52
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 13
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.4
Embodied Energy, MJ/kg 40
18
Embodied Water, L/kg 140
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 140
41 to 81
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 5710
200 to 490
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30 to 58
14 to 19
Strength to Weight: Bending, points 25 to 40
15 to 18
Thermal Diffusivity, mm2/s 4.3
14
Thermal Shock Resistance, points 23 to 46
12 to 15

Alloy Composition

Aluminum (Al), % 0.7 to 1.5
0
Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0 to 0.090
0.16 to 0.2
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 70.9 to 76.8
98.4 to 99.239
Manganese (Mn), % 0 to 1.0
0.6 to 0.8
Nickel (Ni), % 6.5 to 7.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.7
0 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.025