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SAE-AISI 1541 Steel vs. ASTM A369 Grade FP9

Both SAE-AISI 1541 steel and ASTM A369 grade FP9 are iron alloys. They have 89% 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 SAE-AISI 1541 steel and the bottom bar is ASTM A369 grade FP9.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 220
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
20
Fatigue Strength, MPa 260 to 420
160
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 440 to 480
300
Tensile Strength: Ultimate (UTS), MPa 720 to 790
470
Tensile Strength: Yield (Proof), MPa 390 to 680
240

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
600
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
26
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
10

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
6.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.0
Embodied Energy, MJ/kg 19
28
Embodied Water, L/kg 48
87

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 100
80
Resilience: Unit (Modulus of Resilience), kJ/m3 410 to 1250
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 28
17
Strength to Weight: Bending, points 23 to 24
17
Thermal Diffusivity, mm2/s 14
6.9
Thermal Shock Resistance, points 23 to 25
13

Alloy Composition

Carbon (C), % 0.36 to 0.44
0 to 0.15
Chromium (Cr), % 0
8.0 to 10
Iron (Fe), % 97.8 to 98.3
87.1 to 90.3
Manganese (Mn), % 1.4 to 1.7
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0
0.5 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030