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ASTM A369 Grade FP5 vs. SAE-AISI M41 Steel

Both ASTM A369 grade FP5 and SAE-AISI M41 steel are iron alloys. They have 82% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP5 and the bottom bar is SAE-AISI M41 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
77
Tensile Strength: Ultimate (UTS), MPa 470
800 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1460
1600
Melting Onset (Solidus), °C 1420
1550
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 40
22
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
33
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 1.7
9.1
Embodied Energy, MJ/kg 23
140
Embodied Water, L/kg 69
120

Common Calculations

PREN (Pitting Resistance) 6.8
28
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 17
26 to 76
Strength to Weight: Bending, points 17
23 to 46
Thermal Diffusivity, mm2/s 11
6.0
Thermal Shock Resistance, points 13
25 to 71

Alloy Composition

Carbon (C), % 0 to 0.15
1.1 to 1.2
Chromium (Cr), % 4.0 to 6.0
3.8 to 4.5
Cobalt (Co), % 0
4.8 to 5.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 92.1 to 95.3
73.4 to 78.9
Manganese (Mn), % 0.3 to 0.6
0.2 to 0.6
Molybdenum (Mo), % 0.45 to 0.65
3.3 to 4.3
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0.15 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
6.3 to 7.0
Vanadium (V), % 0
1.8 to 2.3