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ASTM A356 Grade 9 vs. EN 1.7077 Steel

Both ASTM A356 grade 9 and EN 1.7077 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 26 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 ASTM A356 grade 9 and the bottom bar is EN 1.7077 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Reduction in Area, % 50
63 to 68
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 670
490 to 1750

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 440
420
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 41
45
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 3.6
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.4
1.4
Embodied Energy, MJ/kg 33
19
Embodied Water, L/kg 56
51

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
17 to 62
Strength to Weight: Bending, points 22
18 to 41
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 19
14 to 51

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0 to 0.2
0.34 to 0.38
Chromium (Cr), % 1.0 to 1.5
0.9 to 1.2
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 95.2 to 97.2
96.8 to 98.1
Manganese (Mn), % 0.5 to 0.9
0.7 to 1.0
Molybdenum (Mo), % 0.9 to 1.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.2 to 0.6
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.025
Vanadium (V), % 0.2 to 0.35
0