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Grade FDSiCr Steel vs. SAE-AISI H41 Steel

Both grade FDSiCr steel and SAE-AISI H41 steel are iron alloys. They have 85% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is grade FDSiCr steel and the bottom bar is SAE-AISI H41 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 80
77
Tensile Strength: Ultimate (UTS), MPa 1930
710 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1440
1560
Melting Onset (Solidus), °C 1400
1510
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 48
28
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
18
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 1.5
6.8
Embodied Energy, MJ/kg 20
97
Embodied Water, L/kg 48
97

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 69
24 to 76
Strength to Weight: Bending, points 44
22 to 47
Thermal Diffusivity, mm2/s 13
7.7
Thermal Shock Resistance, points 58
20 to 64

Alloy Composition

Carbon (C), % 0.5 to 0.6
0.6 to 0.75
Chromium (Cr), % 0.5 to 0.8
3.5 to 4.0
Copper (Cu), % 0 to 0.12
0
Iron (Fe), % 96.5 to 97.8
81.8 to 85
Manganese (Mn), % 0.5 to 0.9
0.15 to 0.4
Molybdenum (Mo), % 0
8.2 to 9.2
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 1.2 to 1.6
0.2 to 0.45
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0
1.0 to 1.3