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EN 1.4581 Stainless Steel vs. EN 1.8872 Steel

Both EN 1.4581 stainless steel and EN 1.8872 steel are iron alloys. They have 68% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 1.8872 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
21
Fatigue Strength, MPa 150
310
Impact Strength: V-Notched Charpy, J 45
90
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 510
610
Tensile Strength: Yield (Proof), MPa 210
450

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 990
410
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
39
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 21
2.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.2
1.7
Embodied Energy, MJ/kg 59
22
Embodied Water, L/kg 160
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 110
530
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
22
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 3.9
10
Thermal Shock Resistance, points 12
18

Alloy Composition

Boron (B), % 0
0 to 0.0050
Carbon (C), % 0 to 0.070
0 to 0.18
Chromium (Cr), % 18 to 20
0 to 0.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 61.4 to 71
95.1 to 100
Manganese (Mn), % 0 to 1.5
0 to 1.7
Molybdenum (Mo), % 2.0 to 2.5
0 to 0.5
Nickel (Ni), % 9.0 to 12
0 to 1.0
Niobium (Nb), % 0 to 1.0
0 to 0.050
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0080
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.080
Zirconium (Zr), % 0
0 to 0.050