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ASTM A387 Grade 12 Steel vs. EN 1.8507 Steel

Both ASTM A387 grade 12 steel and EN 1.8507 steel are iron alloys. They have a very high 99% 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 12 steel and the bottom bar is EN 1.8507 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 160
270
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
16
Fatigue Strength, MPa 190 to 230
440
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 300 to 330
550
Tensile Strength: Ultimate (UTS), MPa 470 to 520
900
Tensile Strength: Yield (Proof), MPa 260 to 310
670

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
430
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 44
41
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
2.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.6
Embodied Energy, MJ/kg 21
21
Embodied Water, L/kg 51
63

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 250
1210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 18
32
Strength to Weight: Bending, points 17 to 18
27
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 14 to 15
26

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0.050 to 0.17
0.3 to 0.37
Chromium (Cr), % 0.8 to 1.2
1.0 to 1.3
Iron (Fe), % 97 to 98.2
96.1 to 97.7
Manganese (Mn), % 0.4 to 0.65
0.4 to 0.7
Molybdenum (Mo), % 0.45 to 0.6
0.15 to 0.25
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.15 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.035