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ASTM A387 Grade 12 Steel vs. SAE-AISI D5 Steel

Both ASTM A387 grade 12 steel and SAE-AISI D5 steel are iron alloys. They have 83% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (6, 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 SAE-AISI D5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
5.4 to 14
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 300 to 330
470 to 1180
Tensile Strength: Ultimate (UTS), MPa 470 to 520
770 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 44
27
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
4.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
4.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.6
3.5
Embodied Energy, MJ/kg 21
51
Embodied Water, L/kg 51
120

Common Calculations

PREN (Pitting Resistance) 2.7
15
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16 to 18
28 to 73
Strength to Weight: Bending, points 17 to 18
24 to 46
Thermal Diffusivity, mm2/s 12
7.4
Thermal Shock Resistance, points 14 to 15
26 to 67

Alloy Composition

Carbon (C), % 0.050 to 0.17
1.4 to 1.6
Chromium (Cr), % 0.8 to 1.2
11 to 13
Cobalt (Co), % 0
2.5 to 3.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 97 to 98.2
77.9 to 84.4
Manganese (Mn), % 0.4 to 0.65
0 to 0.6
Molybdenum (Mo), % 0.45 to 0.6
0.7 to 1.2
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0.15 to 0.4
0 to 0.6
Sulfur (S), % 0 to 0.025
0 to 0.030
Vanadium (V), % 0
0 to 1.0

Comparable Variants