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ASTM Grade HK Steel vs. ASTM A356 Grade 10

Both ASTM grade HK steel and ASTM A356 grade 10 are iron alloys. They have 55% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HK steel and the bottom bar is ASTM A356 grade 10.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
23
Fatigue Strength, MPa 150
300
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
74
Tensile Strength: Ultimate (UTS), MPa 500
670
Tensile Strength: Yield (Proof), MPa 270
430

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Maximum Temperature: Mechanical, °C 1100
460
Melting Completion (Liquidus), °C 1400
1470
Melting Onset (Solidus), °C 1350
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
39
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 25
3.9
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.4
1.8
Embodied Energy, MJ/kg 63
23
Embodied Water, L/kg 200
59

Common Calculations

PREN (Pitting Resistance) 27
5.9
Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
130
Resilience: Unit (Modulus of Resilience), kJ/m3 190
480
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
24
Strength to Weight: Bending, points 18
22
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 11
19

Alloy Composition

Carbon (C), % 0.2 to 0.6
0 to 0.2
Chromium (Cr), % 24 to 28
2.0 to 2.8
Iron (Fe), % 44.8 to 57.8
94.4 to 96.6
Manganese (Mn), % 0 to 2.0
0.5 to 0.8
Molybdenum (Mo), % 0 to 0.5
0.9 to 1.2
Nickel (Ni), % 18 to 22
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 2.0
0 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030