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EN 1.4028 Stainless Steel vs. EN 1.4587 Stainless Steel

Both EN 1.4028 stainless steel and EN 1.4587 stainless steel are iron alloys. They have 52% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4028 stainless steel and the bottom bar is EN 1.4587 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 17
34
Fatigue Strength, MPa 230 to 400
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 660 to 930
540
Tensile Strength: Yield (Proof), MPa 390 to 730
250

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Corrosion, °C 390
450
Maximum Temperature: Mechanical, °C 760
1100
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
17
Thermal Expansion, µm/m-K 11
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
36
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 1.9
6.3
Embodied Energy, MJ/kg 27
87
Embodied Water, L/kg 100
230

Common Calculations

PREN (Pitting Resistance) 13
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 94 to 96
150
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 1360
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 33
18
Strength to Weight: Bending, points 22 to 27
18
Thermal Diffusivity, mm2/s 8.1
4.5
Thermal Shock Resistance, points 23 to 32
13

Alloy Composition

Carbon (C), % 0.26 to 0.35
0 to 0.030
Chromium (Cr), % 12 to 14
24 to 26
Copper (Cu), % 0
2.0 to 3.0
Iron (Fe), % 83.1 to 87.7
32.7 to 41.9
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0
28 to 30
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.025