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ASTM A387 Grade 11 Steel vs. EN 1.8503 Steel

Both ASTM A387 grade 11 steel and EN 1.8503 steel are iron alloys. Their average alloy composition is basically identical. 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 11 steel and the bottom bar is EN 1.8503 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
300
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
16
Fatigue Strength, MPa 200 to 250
600
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 320 to 390
610
Tensile Strength: Ultimate (UTS), MPa 500 to 600
1000
Tensile Strength: Yield (Proof), MPa 270 to 350
910

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 430
440
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
41
Thermal Expansion, µm/m-K 13
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
3.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
2.3
Embodied Energy, MJ/kg 21
33
Embodied Water, L/kg 53
57

Common Calculations

PREN (Pitting Resistance) 3.1
3.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 130
150
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 320
2200
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 21
35
Strength to Weight: Bending, points 18 to 20
28
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 15 to 18
29

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0.050 to 0.17
0.16 to 0.24
Chromium (Cr), % 1.0 to 1.5
1.2 to 1.5
Iron (Fe), % 96.2 to 97.6
95.8 to 97.5
Manganese (Mn), % 0.4 to 0.65
0.4 to 0.8
Molybdenum (Mo), % 0.45 to 0.65
0.65 to 0.8
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.5 to 0.8
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.035
Vanadium (V), % 0
0.25 to 0.35