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ASTM A387 Grade 9 Steel vs. EN 1.0591 Cast Steel

Both ASTM A387 grade 9 steel and EN 1.0591 cast steel are iron alloys. They have 89% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 9 steel and the bottom bar is EN 1.0591 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 21
19
Fatigue Strength, MPa 160 to 240
240
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 500 to 600
620
Tensile Strength: Yield (Proof), MPa 230 to 350
360

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 600
400
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
53
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 10
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
1.7
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.1
1.4
Embodied Energy, MJ/kg 28
18
Embodied Water, L/kg 87
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 110
100
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 310
340
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18 to 21
22
Strength to Weight: Bending, points 18 to 20
20
Thermal Diffusivity, mm2/s 6.9
14
Thermal Shock Resistance, points 14 to 17
20

Alloy Composition

Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 8.0 to 10
0
Iron (Fe), % 87.1 to 90.8
99.935 to 100
Manganese (Mn), % 0.3 to 0.6
0
Molybdenum (Mo), % 0.9 to 1.1
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.025
0 to 0.030
Vanadium (V), % 0 to 0.040
0