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EN 1.0034 Steel vs. SAE-AISI O7 Steel

Both EN 1.0034 steel and SAE-AISI O7 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.0034 steel and the bottom bar is SAE-AISI O7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

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 340 to 380
680 to 2110

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 53
41
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
6.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
2.3
Embodied Energy, MJ/kg 18
33
Embodied Water, L/kg 45
52

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 12 to 13
24 to 74
Strength to Weight: Bending, points 14 to 15
22 to 46
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 11 to 12
23 to 70

Alloy Composition

Carbon (C), % 0 to 0.15
1.1 to 1.3
Chromium (Cr), % 0
0.35 to 0.85
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 98.7 to 100
92.9 to 97.6
Manganese (Mn), % 0 to 0.7
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.3
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.35
0 to 0.6
Sulfur (S), % 0 to 0.045
0 to 0.030
Tungsten (W), % 0
1.0 to 2.0
Vanadium (V), % 0
0 to 0.4

Comparable Variants