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EN 1.4515 Stainless Steel vs. EN 1.4424 Stainless Steel

Both EN 1.4515 stainless steel and EN 1.4424 stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 32 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 1.4515 stainless steel and the bottom bar is EN 1.4424 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 25
28
Fatigue Strength, MPa 380
350 to 370
Impact Strength: V-Notched Charpy, J 67
90 to 91
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 730
800
Tensile Strength: Yield (Proof), MPa 550
480 to 500

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
13
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 19
15
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.8
3.4
Embodied Energy, MJ/kg 53
46
Embodied Water, L/kg 180
140

Common Calculations

PREN (Pitting Resistance) 38
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 730
580 to 640
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
29
Strength to Weight: Bending, points 23
25
Thermal Diffusivity, mm2/s 4.3
3.5
Thermal Shock Resistance, points 20
23

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 24.5 to 26.5
18 to 19
Copper (Cu), % 0.8 to 1.3
0
Iron (Fe), % 58.4 to 66.6
68.6 to 72.4
Manganese (Mn), % 0 to 2.0
1.2 to 2.0
Molybdenum (Mo), % 2.5 to 3.5
2.5 to 3.0
Nickel (Ni), % 5.5 to 7.0
4.5 to 5.2
Nitrogen (N), % 0.12 to 0.25
0.050 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 1.0
1.4 to 2.0
Sulfur (S), % 0 to 0.020
0 to 0.015