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ASTM Grade HF Steel vs. SAE-AISI 1151 Steel

Both ASTM grade HF steel and SAE-AISI 1151 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 1151 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
210 to 220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
11 to 17
Fatigue Strength, MPa 200
260 to 410
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 550
710 to 800
Tensile Strength: Yield (Proof), MPa 270
390 to 660

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1000
400
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
51
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
10
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
12

Otherwise Unclassified Properties

Base Metal Price, % relative 17
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.2
1.4
Embodied Energy, MJ/kg 46
18
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
86 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 180
400 to 1170
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
25 to 28
Strength to Weight: Bending, points 19
22 to 24
Thermal Diffusivity, mm2/s 4.2
14
Thermal Shock Resistance, points 12
22 to 25

Alloy Composition

Carbon (C), % 0.2 to 0.4
0.48 to 0.55
Chromium (Cr), % 18 to 23
0
Iron (Fe), % 60 to 73.8
98.3 to 98.7
Manganese (Mn), % 0 to 2.0
0.7 to 1.0
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
0.080 to 0.13