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AISI 440C Stainless Steel vs. EN 1.8915 Steel

Both AISI 440C stainless steel and EN 1.8915 steel are iron alloys. They have 82% of their average alloy composition in common. There are 29 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 AISI 440C stainless steel and the bottom bar is EN 1.8915 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 2.0 to 14
19
Fatigue Strength, MPa 260 to 840
340
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 430 to 1120
400
Tensile Strength: Ultimate (UTS), MPa 710 to 1970
640
Tensile Strength: Yield (Proof), MPa 450 to 1900
490

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 870
400
Melting Completion (Liquidus), °C 1480
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 22
46
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
2.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.7
Embodied Energy, MJ/kg 31
24
Embodied Water, L/kg 120
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 39 to 88
110
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 71
23
Strength to Weight: Bending, points 23 to 46
21
Thermal Diffusivity, mm2/s 6.0
12
Thermal Shock Resistance, points 26 to 71
19

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.050
Carbon (C), % 1.0 to 1.2
0 to 0.2
Chromium (Cr), % 16 to 18
0 to 0.3
Copper (Cu), % 0
0 to 0.7
Iron (Fe), % 78 to 83.1
95.2 to 98.9
Manganese (Mn), % 0 to 1.0
1.1 to 1.7
Molybdenum (Mo), % 0 to 0.75
0 to 0.1
Nickel (Ni), % 0
0 to 0.8
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.025
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.0080
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.2