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EN 1.7139 Steel vs. SAE-AISI 1026 Steel

Both EN 1.7139 steel and SAE-AISI 1026 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.7139 steel and the bottom bar is SAE-AISI 1026 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
140 to 160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 480 to 1390
500 to 550

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
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 44
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
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 51
46

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 49
18 to 20
Strength to Weight: Bending, points 17 to 35
18 to 19
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 14 to 41
16 to 18

Alloy Composition

Carbon (C), % 0.14 to 0.19
0.22 to 0.28
Chromium (Cr), % 0.8 to 1.1
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 96.8 to 98
98.7 to 99.18
Manganese (Mn), % 1.0 to 1.3
0.6 to 0.9
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.3
0
Sulfur (S), % 0.020 to 0.040
0 to 0.050