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EN 1.4587 Stainless Steel vs. EN 1.0491 Steel

Both EN 1.4587 stainless steel and EN 1.0491 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 1.0491 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
130
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
26
Fatigue Strength, MPa 200
200
Impact Strength: V-Notched Charpy, J 67
49
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 540
440
Tensile Strength: Yield (Proof), MPa 250
270

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
1.6
Embodied Energy, MJ/kg 87
21
Embodied Water, L/kg 230
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
99
Resilience: Unit (Modulus of Resilience), kJ/m3 150
200
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
16
Strength to Weight: Bending, points 18
16
Thermal Diffusivity, mm2/s 4.5
13
Thermal Shock Resistance, points 13
14

Alloy Composition

Aluminum (Al), % 0
0 to 0.015
Carbon (C), % 0 to 0.030
0 to 0.18
Chromium (Cr), % 24 to 26
0 to 0.35
Copper (Cu), % 2.0 to 3.0
0 to 0.6
Iron (Fe), % 32.7 to 41.9
96.1 to 99.55
Manganese (Mn), % 0 to 2.0
0.45 to 1.6
Molybdenum (Mo), % 4.0 to 5.0
0 to 0.13
Nickel (Ni), % 28 to 30
0 to 0.35
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0.15 to 0.25
0 to 0.017
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.45
Sulfur (S), % 0 to 0.025
0 to 0.025
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0
0 to 0.070