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EN 1.4581 Stainless Steel vs. EN 1.4615 Stainless Steel

Both EN 1.4581 stainless steel and EN 1.4615 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 88% of their average alloy composition in common. There are 33 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 1.4581 stainless steel and the bottom bar is EN 1.4615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
50
Fatigue Strength, MPa 150
190
Impact Strength: V-Notched Charpy, J 45
91
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 510
500
Tensile Strength: Yield (Proof), MPa 210
200

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 490
400
Maximum Temperature: Mechanical, °C 990
840
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1400
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 21
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.2
2.8
Embodied Energy, MJ/kg 59
40
Embodied Water, L/kg 160
140

Common Calculations

PREN (Pitting Resistance) 26
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
200
Resilience: Unit (Modulus of Resilience), kJ/m3 110
99
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
18
Strength to Weight: Bending, points 18
18
Thermal Diffusivity, mm2/s 3.9
4.1
Thermal Shock Resistance, points 12
11

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 18 to 20
14 to 16
Copper (Cu), % 0
2.0 to 4.0
Iron (Fe), % 61.4 to 71
63.1 to 72.5
Manganese (Mn), % 0 to 1.5
7.0 to 9.0
Molybdenum (Mo), % 2.0 to 2.5
0 to 0.8
Nickel (Ni), % 9.0 to 12
4.5 to 6.0
Niobium (Nb), % 0 to 1.0
0
Nitrogen (N), % 0
0.020 to 0.060
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010