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ASTM A369 Grade FP22 vs. ASTM Grade HE Steel

Both ASTM A369 grade FP22 and ASTM grade HE steel are iron alloys. They have 63% 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 A369 grade FP22 and the bottom bar is ASTM grade HE steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
10
Fatigue Strength, MPa 160
160
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
79
Tensile Strength: Ultimate (UTS), MPa 470
670
Tensile Strength: Yield (Proof), MPa 240
310

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Maximum Temperature: Mechanical, °C 460
1100
Melting Completion (Liquidus), °C 1470
1400
Melting Onset (Solidus), °C 1430
1360
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 39
14
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
19
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.7
3.5
Embodied Energy, MJ/kg 23
50
Embodied Water, L/kg 58
190

Common Calculations

PREN (Pitting Resistance) 5.5
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
56
Resilience: Unit (Modulus of Resilience), kJ/m3 150
240
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
24
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 11
3.6
Thermal Shock Resistance, points 14
14

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.2 to 0.5
Chromium (Cr), % 1.9 to 2.6
26 to 30
Iron (Fe), % 95 to 96.9
53.9 to 65.8
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.87 to 1.1
0 to 0.5
Nickel (Ni), % 0
8.0 to 11
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.025
0 to 0.040