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SAE-AISI 4028 Steel vs. ASTM A369 Grade FP22

Both SAE-AISI 4028 steel and ASTM A369 grade FP22 are iron alloys. They have a very high 97% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4028 steel and the bottom bar is ASTM A369 grade FP22.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 190
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14 to 23
20
Fatigue Strength, MPa 180 to 330
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 310 to 380
300
Tensile Strength: Ultimate (UTS), MPa 490 to 630
470
Tensile Strength: Yield (Proof), MPa 260 to 520
240

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 400
460
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 49
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
3.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.7
Embodied Energy, MJ/kg 19
23
Embodied Water, L/kg 47
58

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 95
80
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 720
150
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 22
17
Strength to Weight: Bending, points 18 to 21
17
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 16 to 20
14

Alloy Composition

Carbon (C), % 0.25 to 0.3
0.050 to 0.15
Chromium (Cr), % 0
1.9 to 2.6
Iron (Fe), % 98.1 to 98.7
95 to 96.9
Manganese (Mn), % 0.7 to 0.9
0.3 to 0.6
Molybdenum (Mo), % 0.2 to 0.3
0.87 to 1.1
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0.035 to 0.050
0 to 0.025