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ASTM A387 Grade 2 Steel vs. SAE-AISI 5130 Steel

Both ASTM A387 grade 2 steel and SAE-AISI 5130 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 5130 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 170
150 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
12 to 22
Fatigue Strength, MPa 190 to 250
230 to 330
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300 to 350
310 to 390
Tensile Strength: Ultimate (UTS), MPa 470 to 550
500 to 640
Tensile Strength: Yield (Proof), MPa 260 to 350
330 to 530

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
420
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 45
45
Thermal Expansion, µm/m-K 13
12

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
2.2
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
74 to 98
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
290 to 750
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 20
18 to 23
Strength to Weight: Bending, points 17 to 19
18 to 21
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 14 to 16
16 to 20

Alloy Composition

Carbon (C), % 0.050 to 0.21
0.28 to 0.33
Chromium (Cr), % 0.5 to 0.8
0.8 to 1.1
Iron (Fe), % 97.1 to 98.3
97.2 to 98.1
Manganese (Mn), % 0.55 to 0.8
0.7 to 0.9
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