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ASTM A369 Grade FP1 vs. ASTM Grade HH Steel

Both ASTM A369 grade FP1 and ASTM grade HH steel are iron alloys. They have 60% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP1 and the bottom bar is ASTM grade HH steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
11
Fatigue Strength, MPa 160
150
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 430
580
Tensile Strength: Yield (Proof), MPa 240
270

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 410
1100
Melting Completion (Liquidus), °C 1470
1400
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
14
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
20
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.5
3.7
Embodied Energy, MJ/kg 20
53
Embodied Water, L/kg 47
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 75
53
Resilience: Unit (Modulus of Resilience), kJ/m3 150
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15
21
Strength to Weight: Bending, points 16
20
Thermal Diffusivity, mm2/s 13
3.8
Thermal Shock Resistance, points 13
12

Alloy Composition

Carbon (C), % 0.1 to 0.2
0.2 to 0.5
Chromium (Cr), % 0
24 to 28
Iron (Fe), % 97.8 to 99.06
52.9 to 64.8
Manganese (Mn), % 0.3 to 0.8
0 to 2.0
Molybdenum (Mo), % 0.44 to 0.65
0 to 0.5
Nickel (Ni), % 0
11 to 14
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.025
0 to 0.040