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ASTM Grade HK Steel vs. SAE-AISI D3 Steel

Both ASTM grade HK steel and SAE-AISI D3 steel are iron alloys. They have 65% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, 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 D3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
9.8 to 15
Fatigue Strength, MPa 150
310 to 940
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
74
Tensile Strength: Ultimate (UTS), MPa 500
770 to 2050
Tensile Strength: Yield (Proof), MPa 270
480 to 1550

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1350
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
31
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 25
8.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.4
3.2
Embodied Energy, MJ/kg 63
48
Embodied Water, L/kg 200
100

Common Calculations

PREN (Pitting Resistance) 27
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
97 to 180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
28 to 74
Strength to Weight: Bending, points 18
24 to 47
Thermal Diffusivity, mm2/s 3.9
8.3
Thermal Shock Resistance, points 11
23 to 63

Alloy Composition

Carbon (C), % 0.2 to 0.6
2.0 to 2.4
Chromium (Cr), % 24 to 28
11 to 13.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 44.8 to 57.8
80.3 to 87
Manganese (Mn), % 0 to 2.0
0 to 0.6
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 18 to 22
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
0 to 1.0
Vanadium (V), % 0
0 to 1.0