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SAE-AISI 1039 Steel vs. EN 1.0259 Steel

Both SAE-AISI 1039 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 1039 steel and the bottom bar is EN 1.0259 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 200
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14 to 18
23
Fatigue Strength, MPa 230 to 370
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 380 to 420
310
Tensile Strength: Ultimate (UTS), MPa 610 to 690
490
Tensile Strength: Yield (Proof), MPa 340 to 580
280

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 51
49
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
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 18
19
Embodied Water, L/kg 46
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 94
95
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 890
210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 24
17
Strength to Weight: Bending, points 20 to 22
18
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 19 to 22
15

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.2
Carbon (C), % 0.37 to 0.44
0 to 0.2
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 98.5 to 98.9
96.7 to 99.98
Manganese (Mn), % 0.7 to 1.0
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