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EN 1.5537 Steel vs. EN 1.5538 Steel

Both EN 1.5537 steel and EN 1.5538 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.5537 steel and the bottom bar is EN 1.5538 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
160 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Reduction in Area, % 64 to 69
64 to 69
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 520 to 1760
530 to 1810

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
51
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 47
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 63
19 to 64
Strength to Weight: Bending, points 18 to 41
19 to 42
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 15 to 52
16 to 53

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0.00080 to 0.0050
Carbon (C), % 0.33 to 0.38
0.35 to 0.4
Chromium (Cr), % 0 to 0.3
0 to 0.3
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 97.6 to 98.9
97.2 to 98.5
Manganese (Mn), % 0.8 to 1.1
1.2 to 1.5
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.3
0 to 0.3
Sulfur (S), % 0 to 0.025
0 to 0.025

Comparable Variants