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SAE-AISI 1090 Steel vs. EN 1.0259 Steel

Both SAE-AISI 1090 steel and EN 1.0259 steel are iron alloys. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1090 steel and the bottom bar is EN 1.0259 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 280
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
23
Fatigue Strength, MPa 320 to 380
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 470 to 570
310
Tensile Strength: Ultimate (UTS), MPa 790 to 950
490
Tensile Strength: Yield (Proof), MPa 520 to 610
280

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
49
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 46
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82 to 91
95
Resilience: Unit (Modulus of Resilience), kJ/m3 730 to 1000
210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 28 to 34
17
Strength to Weight: Bending, points 24 to 27
18
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 25 to 31
15

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.2
Carbon (C), % 0.85 to 1.0
0 to 0.2
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 98 to 98.6
96.7 to 99.98
Manganese (Mn), % 0.6 to 0.9
0 to 1.4
Molybdenum (Mo), % 0
0 to 0.080
Nickel (Ni), % 0
0 to 0.3
Niobium (Nb), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0 to 0.050
0 to 0.015
Titanium (Ti), % 0
0 to 0.040
Vanadium (V), % 0
0 to 0.020