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EN 1.4581 Stainless Steel vs. EN 1.5525 Steel

Both EN 1.4581 stainless steel and EN 1.5525 steel are iron alloys. They have 67% of their average alloy composition in common. There are 30 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 1.4581 stainless steel and the bottom bar is EN 1.5525 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
130 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
11 to 21
Fatigue Strength, MPa 150
210 to 310
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 510
440 to 1440
Tensile Strength: Yield (Proof), MPa 210
300 to 490

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 990
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
50
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 21
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.2
1.4
Embodied Energy, MJ/kg 59
19
Embodied Water, L/kg 160
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
44 to 240
Resilience: Unit (Modulus of Resilience), kJ/m3 110
240 to 640
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
16 to 51
Strength to Weight: Bending, points 18
16 to 36
Thermal Diffusivity, mm2/s 3.9
13
Thermal Shock Resistance, points 12
13 to 42

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0 to 0.070
0.18 to 0.23
Chromium (Cr), % 18 to 20
0 to 0.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 61.4 to 71
97.7 to 98.9
Manganese (Mn), % 0 to 1.5
0.9 to 1.2
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 9.0 to 12
0
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.5
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.025