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EN 1.5538 Steel vs. EN 1.5507 Steel

Both EN 1.5538 steel and EN 1.5507 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.5538 steel and the bottom bar is EN 1.5507 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 190
140 to 260
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Reduction in Area, % 64 to 69
58 to 72
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 530 to 1810
450 to 880

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
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 51
49
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
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 48
49

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19 to 64
16 to 31
Strength to Weight: Bending, points 19 to 42
17 to 26
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 16 to 53
13 to 26

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.080
Boron (B), % 0.00080 to 0.0050
0.00080 to 0.0050
Carbon (C), % 0.35 to 0.4
0.21 to 0.25
Chromium (Cr), % 0 to 0.3
0.25 to 0.35
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 97.2 to 98.5
97.8 to 98.7
Manganese (Mn), % 1.2 to 1.5
0.8 to 1.0
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0 to 0.3
0 to 0.15
Sulfur (S), % 0 to 0.025
0 to 0.015
Titanium (Ti), % 0
0 to 0.060

Comparable Variants