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EN 1.4584 Stainless Steel vs. EN 1.4887 Stainless Steel

Both EN 1.4584 stainless steel and EN 1.4887 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. 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 (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4584 stainless steel and the bottom bar is EN 1.4887 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
45
Fatigue Strength, MPa 170
280
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 500
580
Tensile Strength: Yield (Proof), MPa 210
300

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Corrosion, °C 420
600
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1390
Melting Onset (Solidus), °C 1390
1350
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 17
12
Thermal Expansion, µm/m-K 15
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 31
39
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 5.7
6.7
Embodied Energy, MJ/kg 78
96
Embodied Water, L/kg 200
210

Common Calculations

PREN (Pitting Resistance) 36
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
220
Resilience: Unit (Modulus of Resilience), kJ/m3 110
230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
20
Strength to Weight: Bending, points 17
19
Thermal Diffusivity, mm2/s 4.5
3.2
Thermal Shock Resistance, points 12
14

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.15
Chromium (Cr), % 19 to 21
20 to 23
Copper (Cu), % 1.0 to 3.0
0
Iron (Fe), % 41.7 to 52
34.2 to 45
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 24 to 26
33 to 37
Niobium (Nb), % 0
1.0 to 1.5
Nitrogen (N), % 0 to 0.2
0 to 0.1
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
1.0 to 2.0
Sulfur (S), % 0 to 0.020
0 to 0.015