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ASTM Grade HF Steel vs. SAE-AISI 1012 Steel

Both ASTM grade HF steel and SAE-AISI 1012 steel are iron alloys. They have 68% 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 HF steel and the bottom bar is SAE-AISI 1012 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
100 to 110
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
21 to 31
Fatigue Strength, MPa 200
150 to 230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 550
360 to 400
Tensile Strength: Yield (Proof), MPa 270
200 to 330

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1000
400
Melting Completion (Liquidus), °C 1410
1470
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
53
Thermal Expansion, µm/m-K 16
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 17
1.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.2
1.4
Embodied Energy, MJ/kg 46
18
Embodied Water, L/kg 150
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
80 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 180
110 to 300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
13 to 14
Strength to Weight: Bending, points 19
14 to 15
Thermal Diffusivity, mm2/s 4.2
14
Thermal Shock Resistance, points 12
11 to 13

Alloy Composition

Carbon (C), % 0.2 to 0.4
0.1 to 0.15
Chromium (Cr), % 18 to 23
0
Iron (Fe), % 60 to 73.8
99.16 to 99.6
Manganese (Mn), % 0 to 2.0
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 8.0 to 12
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