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EN 1.6587 Steel vs. EN 1.4988 Stainless Steel

Both EN 1.6587 steel and EN 1.4988 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.6587 steel and the bottom bar is EN 1.4988 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 220
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 520 to 1420
640

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 440
920
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 41
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
23
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.7
6.0
Embodied Energy, MJ/kg 22
89
Embodied Water, L/kg 58
150

Common Calculations

PREN (Pitting Resistance) 2.6
22
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 50
23
Strength to Weight: Bending, points 18 to 36
21
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 15 to 42
14

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Carbon (C), % 0.15 to 0.21
0.040 to 0.1
Chromium (Cr), % 1.5 to 1.8
15.5 to 17.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 94.4 to 96.4
62.1 to 69.5
Manganese (Mn), % 0.5 to 0.9
0 to 1.5
Molybdenum (Mo), % 0.25 to 0.35
1.1 to 1.5
Nickel (Ni), % 1.4 to 1.7
12.5 to 14.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0
0.060 to 0.14
Oxygen (O), % 0 to 0.0020
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.4
0.3 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0
0.6 to 0.85