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ASTM A387 Grade 2 Steel vs. SAE-AISI 5160 Steel

Both ASTM A387 grade 2 steel and SAE-AISI 5160 steel are iron alloys. Their average alloy composition is basically identical. There are 31 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 2 steel and the bottom bar is SAE-AISI 5160 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 170
200 to 340
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
12 to 18
Fatigue Strength, MPa 190 to 250
180 to 650
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300 to 350
390 to 700
Tensile Strength: Ultimate (UTS), MPa 470 to 550
660 to 1150
Tensile Strength: Yield (Proof), MPa 260 to 350
280 to 1010

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
420
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
43
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 2.6
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.4
Embodied Energy, MJ/kg 20
19
Embodied Water, L/kg 50
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
73 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
200 to 2700
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 20
23 to 41
Strength to Weight: Bending, points 17 to 19
22 to 31
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 14 to 16
19 to 34

Alloy Composition

Carbon (C), % 0.050 to 0.21
0.56 to 0.61
Chromium (Cr), % 0.5 to 0.8
0.7 to 0.9
Iron (Fe), % 97.1 to 98.3
97.1 to 97.8
Manganese (Mn), % 0.55 to 0.8
0.75 to 1.0
Molybdenum (Mo), % 0.45 to 0.6
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0.15 to 0.4
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.040

Comparable Variants