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ASTM A387 Grade 12 Steel vs. EN 1.3515 Steel

Both ASTM A387 grade 12 steel and EN 1.3515 steel are iron alloys. Their average alloy composition is basically identical. 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 12 steel and the bottom bar is EN 1.3515 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 160
150 to 220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 470 to 520
500 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
410
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 44
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.4
Embodied Energy, MJ/kg 21
19
Embodied Water, L/kg 51
49

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 18
18 to 52
Strength to Weight: Bending, points 17 to 18
18 to 36
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 14 to 15
15 to 43

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0.050 to 0.17
0.17 to 0.23
Chromium (Cr), % 0.8 to 1.2
0.4 to 0.75
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 97 to 98.2
97.3 to 99
Manganese (Mn), % 0.4 to 0.65
0.65 to 1.1
Molybdenum (Mo), % 0.45 to 0.6
0
Oxygen (O), % 0
0 to 0.0020
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 0.030

Comparable Variants