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ASTM Grade HF Steel vs. ASTM A369 Grade FP2

Both ASTM grade HF steel and ASTM A369 grade FP2 are iron alloys. They have 69% 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 HF steel and the bottom bar is ASTM A369 grade FP2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
130
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
20
Fatigue Strength, MPa 200
160
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 550
430
Tensile Strength: Yield (Proof), MPa 270
240

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1000
420
Melting Completion (Liquidus), °C 1410
1470
Melting Onset (Solidus), °C 1370
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
49
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 17
2.6
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.2
1.6
Embodied Energy, MJ/kg 46
20
Embodied Water, L/kg 150
50

Common Calculations

PREN (Pitting Resistance) 21
2.5
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
75
Resilience: Unit (Modulus of Resilience), kJ/m3 180
150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
15
Strength to Weight: Bending, points 19
16
Thermal Diffusivity, mm2/s 4.2
13
Thermal Shock Resistance, points 12
13

Alloy Composition

Carbon (C), % 0.2 to 0.4
0.1 to 0.2
Chromium (Cr), % 18 to 23
0.5 to 0.81
Iron (Fe), % 60 to 73.8
97.4 to 98.6
Manganese (Mn), % 0 to 2.0
0.3 to 0.61
Molybdenum (Mo), % 0 to 0.5
0.44 to 0.65
Nickel (Ni), % 8.0 to 12
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.0
0.1 to 0.3
Sulfur (S), % 0 to 0.040
0 to 0.025