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SAE-AISI 1008 Steel vs. ASTM Grade HI Steel

Both SAE-AISI 1008 steel and ASTM grade HI steel are iron alloys. They have 54% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 grade HI steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 93 to 100
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22 to 33
11
Fatigue Strength, MPa 150 to 220
150
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 330 to 370
550
Tensile Strength: Yield (Proof), MPa 190 to 310
270

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1470
1400
Melting Onset (Solidus), °C 1430
1350
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 62
15
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
23
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
4.1
Embodied Energy, MJ/kg 18
59
Embodied Water, L/kg 45
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 91
52
Resilience: Unit (Modulus of Resilience), kJ/m3 92 to 260
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 12 to 13
20
Strength to Weight: Bending, points 13 to 15
19
Thermal Diffusivity, mm2/s 17
3.9
Thermal Shock Resistance, points 10 to 12
12

Alloy Composition

Carbon (C), % 0 to 0.1
0.2 to 0.5
Chromium (Cr), % 0
26 to 30
Iron (Fe), % 99.31 to 99.7
46.9 to 59.8
Manganese (Mn), % 0.3 to 0.5
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
14 to 18
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 2.0
Sulfur (S), % 0 to 0.050
0 to 0.040