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EN 1.4415 Stainless Steel vs. AISI 440C Stainless Steel

Both EN 1.4415 stainless steel and AISI 440C stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 AISI 440C stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17 to 20
2.0 to 14
Fatigue Strength, MPa 470 to 510
260 to 840
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 520 to 570
430 to 1120
Tensile Strength: Ultimate (UTS), MPa 830 to 930
710 to 1970
Tensile Strength: Yield (Proof), MPa 730 to 840
450 to 1900

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 390
390
Maximum Temperature: Mechanical, °C 790
870
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 19
22
Thermal Expansion, µm/m-K 9.9
10

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.6
2.2
Embodied Energy, MJ/kg 51
31
Embodied Water, L/kg 120
120

Common Calculations

PREN (Pitting Resistance) 19
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 160
39 to 88
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29 to 33
26 to 71
Strength to Weight: Bending, points 25 to 27
23 to 46
Thermal Diffusivity, mm2/s 5.1
6.0
Thermal Shock Resistance, points 30 to 34
26 to 71

Alloy Composition

Carbon (C), % 0 to 0.030
1.0 to 1.2
Chromium (Cr), % 11.5 to 13.5
16 to 18
Iron (Fe), % 75.9 to 82.4
78 to 83.1
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 1.5 to 2.5
0 to 0.75
Nickel (Ni), % 4.5 to 6.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.1 to 0.5
0

Comparable Variants