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SAE-AISI 1008 Steel vs. ASTM A387 Grade 5 Steel

Both SAE-AISI 1008 steel and ASTM A387 grade 5 steel are iron alloys. They have a moderately high 94% 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 SAE-AISI 1008 steel and the bottom bar is ASTM A387 grade 5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 93 to 100
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22 to 33
20 to 21
Fatigue Strength, MPa 150 to 220
160 to 240
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 220 to 230
310 to 380
Tensile Strength: Ultimate (UTS), MPa 330 to 370
500 to 600
Tensile Strength: Yield (Proof), MPa 190 to 310
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 400
510
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 62
40
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
4.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.7
Embodied Energy, MJ/kg 18
23
Embodied Water, L/kg 45
69

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 91
83 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 92 to 260
140 to 320
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 12 to 13
18 to 21
Strength to Weight: Bending, points 13 to 15
18 to 20
Thermal Diffusivity, mm2/s 17
11
Thermal Shock Resistance, points 10 to 12
14 to 17

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.15
Chromium (Cr), % 0
4.0 to 6.0
Iron (Fe), % 99.31 to 99.7
92.1 to 95.3
Manganese (Mn), % 0.3 to 0.5
0.3 to 0.6
Molybdenum (Mo), % 0
0.45 to 0.65
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.025