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EN 1.4615 Stainless Steel vs. EN 1.4401 Stainless Steel

Both EN 1.4615 stainless steel and EN 1.4401 stainless steel are iron alloys. They have 89% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4615 stainless steel and the bottom bar is EN 1.4401 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 50
14 to 40
Fatigue Strength, MPa 190
200 to 320
Impact Strength: V-Notched Charpy, J 91
91 to 94
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Shear Strength, MPa 360
410 to 550
Tensile Strength: Ultimate (UTS), MPa 500
600 to 900
Tensile Strength: Yield (Proof), MPa 200
230 to 570

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 400
410
Maximum Temperature: Mechanical, °C 840
950
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 13
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.8
3.8
Embodied Energy, MJ/kg 40
52
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 17
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
110 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 99
130 to 800
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
21 to 32
Strength to Weight: Bending, points 18
20 to 26
Thermal Diffusivity, mm2/s 4.1
4.0
Thermal Shock Resistance, points 11
13 to 20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.070
Chromium (Cr), % 14 to 16
16.5 to 18.5
Copper (Cu), % 2.0 to 4.0
0
Iron (Fe), % 63.1 to 72.5
62.8 to 71.5
Manganese (Mn), % 7.0 to 9.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.8
2.0 to 2.5
Nickel (Ni), % 4.5 to 6.0
10 to 13
Nitrogen (N), % 0.020 to 0.060
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015