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SAE-AISI 1090 Steel vs. EN 1.5535 Steel

Both SAE-AISI 1090 steel and EN 1.5535 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is SAE-AISI 1090 steel and the bottom bar is EN 1.5535 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 280
130 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
11 to 22
Fatigue Strength, MPa 320 to 380
210 to 320
Poisson's Ratio 0.29
0.29
Reduction in Area, % 28 to 45
62 to 72
Shear Modulus, GPa 72
73
Shear Strength, MPa 470 to 570
320 to 370
Tensile Strength: Ultimate (UTS), MPa 790 to 950
450 to 1490
Tensile Strength: Yield (Proof), MPa 520 to 610
300 to 500

Thermal Properties

Latent Heat of Fusion, J/g 240
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
50
Thermal Expansion, µm/m-K 12
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.9
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 46
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82 to 91
45 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 730 to 1000
240 to 680
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 28 to 34
16 to 53
Strength to Weight: Bending, points 24 to 27
17 to 37
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 25 to 31
13 to 44

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0.85 to 1.0
0.2 to 0.25
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 98 to 98.6
97.6 to 98.9
Manganese (Mn), % 0.6 to 0.9
0.9 to 1.2
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0 to 0.3
Sulfur (S), % 0 to 0.050
0 to 0.025

Comparable Variants