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Grade FDSiCr Steel vs. S44700 Stainless Steel

Both grade FDSiCr steel and S44700 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is grade FDSiCr steel and the bottom bar is S44700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 580
200
Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.27
Reduction in Area, % 42
45
Shear Modulus, GPa 80
82
Tensile Strength: Ultimate (UTS), MPa 1930
600

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Mechanical, °C 410
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
18
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.5
3.6
Embodied Energy, MJ/kg 20
49
Embodied Water, L/kg 48
180

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 69
21
Strength to Weight: Bending, points 44
20
Thermal Shock Resistance, points 58
19

Alloy Composition

Carbon (C), % 0.5 to 0.6
0 to 0.010
Chromium (Cr), % 0.5 to 0.8
28 to 30
Copper (Cu), % 0 to 0.12
0 to 0.15
Iron (Fe), % 96.5 to 97.8
64.9 to 68.5
Manganese (Mn), % 0.5 to 0.9
0 to 0.3
Molybdenum (Mo), % 0
3.5 to 4.2
Nickel (Ni), % 0
0 to 0.15
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 1.2 to 1.6
0 to 0.2
Sulfur (S), % 0 to 0.025
0 to 0.020