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EN 1.4415 Stainless Steel vs. EN 1.4508 Stainless Steel

Both EN 1.4415 stainless steel and EN 1.4508 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, 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 1.4508 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17 to 20
34
Fatigue Strength, MPa 470 to 510
210
Impact Strength: V-Notched Charpy, J 91 to 110
90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 830 to 930
570
Tensile Strength: Yield (Proof), MPa 730 to 840
260

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 790
1000
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 19
15
Thermal Expansion, µm/m-K 9.9
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
20
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.6
4.0
Embodied Energy, MJ/kg 51
55
Embodied Water, L/kg 120
160

Common Calculations

PREN (Pitting Resistance) 19
32
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 160
160
Resilience: Unit (Modulus of Resilience), kJ/m3 1350 to 1790
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29 to 33
20
Strength to Weight: Bending, points 25 to 27
19
Thermal Diffusivity, mm2/s 5.1
4.1
Thermal Shock Resistance, points 30 to 34
17

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 11.5 to 13.5
18 to 20
Iron (Fe), % 75.9 to 82.4
61.2 to 69.9
Manganese (Mn), % 0 to 0.5
0 to 1.5
Molybdenum (Mo), % 1.5 to 2.5
3.0 to 3.5
Nickel (Ni), % 4.5 to 6.5
9.0 to 12
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.1 to 0.5
0