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ASTM Grade HI Steel vs. SAE-AISI 1008 Steel

Both ASTM grade HI steel and SAE-AISI 1008 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 ASTM grade HI steel and the bottom bar is SAE-AISI 1008 steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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