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EN 1.7323 Steel vs. SAE-AISI 9255 Steel

Both EN 1.7323 steel and SAE-AISI 9255 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 (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.7323 steel and the bottom bar is SAE-AISI 9255 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 480 to 1460
680

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
2.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.5
1.5
Embodied Energy, MJ/kg 20
20
Embodied Water, L/kg 50
46

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 52
24
Strength to Weight: Bending, points 17 to 36
22
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 14 to 43
21

Alloy Composition

Carbon (C), % 0.17 to 0.23
0.51 to 0.59
Chromium (Cr), % 0.3 to 0.6
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.1 to 98.4
96.2 to 97
Manganese (Mn), % 0.7 to 1.0
0.7 to 1.0
Molybdenum (Mo), % 0.4 to 0.5
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.3
1.8 to 2.2
Sulfur (S), % 0.020 to 0.040
0 to 0.040