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ASTM Grade HC Steel vs. SAE-AISI 8615 Steel

Both ASTM grade HC steel and SAE-AISI 8615 steel are iron alloys. They have 70% of their average alloy composition in common. There are 29 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 HC steel and the bottom bar is SAE-AISI 8615 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 6.0
25
Fatigue Strength, MPa 96
220
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 430
480
Tensile Strength: Yield (Proof), MPa 200
310

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
39
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 14
2.6
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.5
Embodied Energy, MJ/kg 40
20
Embodied Water, L/kg 170
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
110
Resilience: Unit (Modulus of Resilience), kJ/m3 95
250
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 16
17
Strength to Weight: Bending, points 16
17
Thermal Diffusivity, mm2/s 4.5
10
Thermal Shock Resistance, points 14
14

Alloy Composition

Carbon (C), % 0 to 0.5
0.13 to 0.18
Chromium (Cr), % 26 to 30
0.4 to 0.6
Iron (Fe), % 61.9 to 74
96.9 to 98.1
Manganese (Mn), % 0 to 1.0
0.7 to 0.9
Molybdenum (Mo), % 0 to 0.5
0.15 to 0.25
Nickel (Ni), % 0 to 4.0
0.4 to 0.7
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 2.0
0.15 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.040