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EN 1.5535 Steel vs. SAE-AISI 1108 Steel

Both EN 1.5535 steel and SAE-AISI 1108 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.5535 steel and the bottom bar is SAE-AISI 1108 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 180
110 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 22
23 to 34
Fatigue Strength, MPa 210 to 320
170 to 260
Poisson's Ratio 0.29
0.29
Reduction in Area, % 62 to 72
45 to 57
Shear Modulus, GPa 73
73
Shear Strength, MPa 320 to 370
250 to 280
Tensile Strength: Ultimate (UTS), MPa 450 to 1490
380 to 440
Tensile Strength: Yield (Proof), MPa 300 to 500
220 to 360

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 50
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
18
Embodied Water, L/kg 48
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 250
95 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 680
130 to 340
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 53
13 to 16
Strength to Weight: Bending, points 17 to 37
15 to 16
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 13 to 44
12 to 14

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.2 to 0.25
0.080 to 0.13
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.6 to 98.9
98.9 to 99.24
Manganese (Mn), % 0.9 to 1.2
0.6 to 0.8
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.3
0
Sulfur (S), % 0 to 0.025
0.080 to 0.13

Comparable Variants