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EN 1.0234 Steel vs. SAE-AISI 1039 Steel

Both EN 1.0234 steel and SAE-AISI 1039 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.0234 steel and the bottom bar is SAE-AISI 1039 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 140
180 to 200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 29
14 to 18
Fatigue Strength, MPa 170 to 270
230 to 370
Poisson's Ratio 0.29
0.29
Reduction in Area, % 64 to 78
40 to 45
Shear Modulus, GPa 73
73
Shear Strength, MPa 260 to 300
380 to 420
Tensile Strength: Ultimate (UTS), MPa 350 to 480
610 to 690
Tensile Strength: Yield (Proof), MPa 220 to 410
340 to 580

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 53
51
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.1

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 130
88 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 440
310 to 890
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 12 to 17
22 to 24
Strength to Weight: Bending, points 14 to 17
20 to 22
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 11 to 15
19 to 22

Alloy Composition

Aluminum (Al), % 0.020 to 0.060
0
Carbon (C), % 0.13 to 0.17
0.37 to 0.44
Iron (Fe), % 99.02 to 99.5
98.5 to 98.9
Manganese (Mn), % 0.35 to 0.6
0.7 to 1.0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.1
0
Sulfur (S), % 0 to 0.025
0 to 0.050

Comparable Variants