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EN 1.4415 Stainless Steel vs. SAE-AISI 1055 Steel

Both EN 1.4415 stainless steel and SAE-AISI 1055 steel are iron alloys. They have 79% 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 1.4415 stainless steel and the bottom bar is SAE-AISI 1055 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17 to 20
11 to 14
Fatigue Strength, MPa 470 to 510
260 to 390
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Shear Strength, MPa 520 to 570
440 to 450
Tensile Strength: Ultimate (UTS), MPa 830 to 930
730 to 750
Tensile Strength: Yield (Proof), MPa 730 to 840
400 to 630

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 790
400
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
51
Thermal Expansion, µm/m-K 9.9
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
11
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.6
1.4
Embodied Energy, MJ/kg 51
18
Embodied Water, L/kg 120
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 160
80 to 85
Resilience: Unit (Modulus of Resilience), kJ/m3 1350 to 1790
440 to 1070
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29 to 33
26
Strength to Weight: Bending, points 25 to 27
23
Thermal Diffusivity, mm2/s 5.1
14
Thermal Shock Resistance, points 30 to 34
23 to 24

Alloy Composition

Carbon (C), % 0 to 0.030
0.5 to 0.6
Chromium (Cr), % 11.5 to 13.5
0
Iron (Fe), % 75.9 to 82.4
98.4 to 98.9
Manganese (Mn), % 0 to 0.5
0.6 to 0.9
Molybdenum (Mo), % 1.5 to 2.5
0
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
Sulfur (S), % 0 to 0.015
0 to 0.050
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.1 to 0.5
0

Comparable Variants