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EN 1.5538 Steel vs. EN 1.6579 Steel

Both EN 1.5538 steel and EN 1.6579 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.5538 steel and the bottom bar is EN 1.6579 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 190
260 to 290
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 530 to 1810
850 to 980

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
440
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
3.7
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.7
Embodied Energy, MJ/kg 19
22
Embodied Water, L/kg 48
56

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19 to 64
30 to 35
Strength to Weight: Bending, points 19 to 42
25 to 28
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 16 to 53
25 to 29

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.35 to 0.4
0.32 to 0.38
Chromium (Cr), % 0 to 0.3
1.4 to 1.7
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.2 to 98.5
94.2 to 96.1
Manganese (Mn), % 1.2 to 1.5
0.6 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.35
Nickel (Ni), % 0
1.4 to 1.7
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.3
0 to 0.6
Sulfur (S), % 0 to 0.025
0 to 0.030

Comparable Variants