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EN 1.4415 Stainless Steel vs. EN 1.8874 Steel

Both EN 1.4415 stainless steel and EN 1.8874 steel are iron alloys. They have 81% 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 1.4415 stainless steel and the bottom bar is EN 1.8874 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17 to 20
19
Fatigue Strength, MPa 470 to 510
340
Impact Strength: V-Notched Charpy, J 91 to 110
68
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 520 to 570
410
Tensile Strength: Ultimate (UTS), MPa 830 to 930
660
Tensile Strength: Yield (Proof), MPa 730 to 840
500

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 790
420
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 19
39
Thermal Expansion, µm/m-K 9.9
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
3.2
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.6
1.8
Embodied Energy, MJ/kg 51
24
Embodied Water, L/kg 120
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 160
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1350 to 1790
670
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29 to 33
23
Strength to Weight: Bending, points 25 to 27
21
Thermal Diffusivity, mm2/s 5.1
10
Thermal Shock Resistance, points 30 to 34
19

Alloy Composition

Boron (B), % 0
0 to 0.0050
Carbon (C), % 0 to 0.030
0 to 0.18
Chromium (Cr), % 11.5 to 13.5
0 to 1.0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 75.9 to 82.4
93.6 to 100
Manganese (Mn), % 0 to 0.5
0 to 1.7
Molybdenum (Mo), % 1.5 to 2.5
0 to 0.7
Nickel (Ni), % 4.5 to 6.5
0 to 1.5
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0 to 0.010
0 to 0.050
Vanadium (V), % 0.1 to 0.5
0 to 0.080
Zirconium (Zr), % 0
0 to 0.15