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ASTM Grade HK Steel vs. SAE-AISI 5160 Steel

Both ASTM grade HK steel and SAE-AISI 5160 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 (3, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HK steel and the bottom bar is SAE-AISI 5160 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
200 to 340
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
12 to 18
Fatigue Strength, MPa 150
180 to 650
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 500
660 to 1150
Tensile Strength: Yield (Proof), MPa 270
280 to 1010

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
43
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 25
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.4
1.4
Embodied Energy, MJ/kg 63
19
Embodied Water, L/kg 200
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
73 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 190
200 to 2700
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
23 to 41
Strength to Weight: Bending, points 18
22 to 31
Thermal Diffusivity, mm2/s 3.9
12
Thermal Shock Resistance, points 11
19 to 34

Alloy Composition

Carbon (C), % 0.2 to 0.6
0.56 to 0.61
Chromium (Cr), % 24 to 28
0.7 to 0.9
Iron (Fe), % 44.8 to 57.8
97.1 to 97.8
Manganese (Mn), % 0 to 2.0
0.75 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 18 to 22
0
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