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ASTM A387 Grade 9 Steel vs. EN 1.8507 Steel

Both ASTM A387 grade 9 steel and EN 1.8507 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 1.8507 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
270
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 21
16
Fatigue Strength, MPa 160 to 240
440
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
72
Shear Strength, MPa 310 to 380
550
Tensile Strength: Ultimate (UTS), MPa 500 to 600
900
Tensile Strength: Yield (Proof), MPa 230 to 350
670

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 600
430
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
41
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 10
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
2.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
1.6
Embodied Energy, MJ/kg 28
21
Embodied Water, L/kg 87
63

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 310
1210
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18 to 21
32
Strength to Weight: Bending, points 18 to 20
27
Thermal Diffusivity, mm2/s 6.9
11
Thermal Shock Resistance, points 14 to 17
26

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0 to 0.15
0.3 to 0.37
Chromium (Cr), % 8.0 to 10
1.0 to 1.3
Iron (Fe), % 87.1 to 90.8
96.1 to 97.7
Manganese (Mn), % 0.3 to 0.6
0.4 to 0.7
Molybdenum (Mo), % 0.9 to 1.1
0.15 to 0.25
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.035
Vanadium (V), % 0 to 0.040
0