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EN 1.4558 Stainless Steel vs. EN 1.5503 Steel

Both EN 1.4558 stainless steel and EN 1.5503 steel are iron alloys. They have 44% 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 1.4558 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, % 39
12 to 17
Fatigue Strength, MPa 170
180 to 280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 350
270 to 320
Tensile Strength: Ultimate (UTS), MPa 510
400 to 520
Tensile Strength: Yield (Proof), MPa 200
270 to 430

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
52
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 31
1.8
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.5
1.4
Embodied Energy, MJ/kg 77
18
Embodied Water, L/kg 200
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
41 to 81
Resilience: Unit (Modulus of Resilience), kJ/m3 100
200 to 490
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
14 to 19
Strength to Weight: Bending, points 18
15 to 18
Thermal Diffusivity, mm2/s 3.1
14
Thermal Shock Resistance, points 12
12 to 15

Alloy Composition

Aluminum (Al), % 0.15 to 0.45
0
Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0 to 0.030
0.16 to 0.2
Chromium (Cr), % 20 to 23
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 39.2 to 47.9
98.4 to 99.239
Manganese (Mn), % 0 to 1.0
0.6 to 0.8
Nickel (Ni), % 32 to 35
0
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.7
0 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.025
Titanium (Ti), % 0 to 0.6
0