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EN 1.4587 Stainless Steel vs. EN 1.0644 Steel

Both EN 1.4587 stainless steel and EN 1.0644 steel are iron alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. 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 1.4587 stainless steel and the bottom bar is EN 1.0644 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
17
Fatigue Strength, MPa 200
380
Impact Strength: V-Notched Charpy, J 67
38
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 540
690
Tensile Strength: Yield (Proof), MPa 250
570

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 17
47
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 36
2.4
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.3
1.8
Embodied Energy, MJ/kg 87
24
Embodied Water, L/kg 230
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
110
Resilience: Unit (Modulus of Resilience), kJ/m3 150
870
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
24
Strength to Weight: Bending, points 18
22
Thermal Diffusivity, mm2/s 4.5
13
Thermal Shock Resistance, points 13
22

Alloy Composition

Aluminum (Al), % 0
0.010 to 0.050
Carbon (C), % 0 to 0.030
0.16 to 0.22
Chromium (Cr), % 24 to 26
0 to 0.3
Copper (Cu), % 2.0 to 3.0
0 to 0.3
Iron (Fe), % 32.7 to 41.9
96.1 to 98.4
Manganese (Mn), % 0 to 2.0
1.3 to 1.7
Molybdenum (Mo), % 4.0 to 5.0
0 to 0.080
Nickel (Ni), % 28 to 30
0 to 0.4
Niobium (Nb), % 0
0 to 0.070
Nitrogen (N), % 0.15 to 0.25
0 to 0.020
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0.1 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.035
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0.080 to 0.15