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ASTM A387 Grade 5 Steel vs. EN 1.7239 Steel

Both ASTM A387 grade 5 steel and EN 1.7239 steel are iron alloys. They have a very high 95% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 5 steel and the bottom bar is EN 1.7239 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
200 to 480
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Tensile Strength: Ultimate (UTS), MPa 500 to 600
660 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 510
420
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
44
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.5
Embodied Energy, MJ/kg 23
20
Embodied Water, L/kg 69
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18 to 21
23 to 71
Strength to Weight: Bending, points 18 to 20
21 to 45
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 14 to 17
19 to 59

Alloy Composition

Carbon (C), % 0 to 0.15
0.56 to 0.64
Chromium (Cr), % 4.0 to 6.0
0.7 to 1.0
Iron (Fe), % 92.1 to 95.3
96.8 to 98
Manganese (Mn), % 0.3 to 0.6
0.7 to 1.0
Molybdenum (Mo), % 0.45 to 0.65
0.060 to 0.15
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.025

Comparable Variants