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EN 1.4615 Stainless Steel vs. EN 1.4878 Stainless Steel

Both EN 1.4615 stainless steel and EN 1.4878 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 90% 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 1.4615 stainless steel and the bottom bar is EN 1.4878 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 50
45
Fatigue Strength, MPa 190
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 360
430
Tensile Strength: Ultimate (UTS), MPa 500
610
Tensile Strength: Yield (Proof), MPa 200
210

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 400
490
Maximum Temperature: Mechanical, °C 840
850
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1360
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 13
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.8
3.2
Embodied Energy, MJ/kg 40
46
Embodied Water, L/kg 140
140

Common Calculations

PREN (Pitting Resistance) 17
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
210
Resilience: Unit (Modulus of Resilience), kJ/m3 99
120
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
22
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 4.1
4.0
Thermal Shock Resistance, points 11
13

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 14 to 16
17 to 19
Copper (Cu), % 2.0 to 4.0
0
Iron (Fe), % 63.1 to 72.5
65 to 74
Manganese (Mn), % 7.0 to 9.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.8
0
Nickel (Ni), % 4.5 to 6.0
9.0 to 12
Nitrogen (N), % 0.020 to 0.060
0
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
Titanium (Ti), % 0
0 to 0.8