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ASTM A387 Grade 5 Steel vs. EN 1.8550 Steel

Both ASTM A387 grade 5 steel and EN 1.8550 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, 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 1.8550 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
300
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 21
11
Fatigue Strength, MPa 160 to 240
470
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 310 to 380
600
Tensile Strength: Ultimate (UTS), MPa 500 to 600
1000
Tensile Strength: Yield (Proof), MPa 230 to 350
760

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 510
440
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
3.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.7
Embodied Energy, MJ/kg 23
23
Embodied Water, L/kg 69
67

Common Calculations

PREN (Pitting Resistance) 6.8
2.3
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 110
100
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 320
1550
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18 to 21
36
Strength to Weight: Bending, points 18 to 20
29
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 14 to 17
29

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0 to 0.15
0.3 to 0.37
Chromium (Cr), % 4.0 to 6.0
1.5 to 1.8
Iron (Fe), % 92.1 to 95.3
94.4 to 96.3
Manganese (Mn), % 0.3 to 0.6
0.4 to 0.7
Molybdenum (Mo), % 0.45 to 0.65
0.15 to 0.25
Nickel (Ni), % 0
0.85 to 1.2
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 0.035