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S40945 Stainless Steel vs. EN 1.0449 Cast Steel

Both S40945 stainless steel and EN 1.0449 cast steel are iron alloys. They have 88% of their average alloy composition in common. There are 29 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 S40945 stainless steel and the bottom bar is EN 1.0449 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
28
Fatigue Strength, MPa 160
170
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 430
460
Tensile Strength: Yield (Proof), MPa 230
220

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 710
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 26
52
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.4
Embodied Energy, MJ/kg 31
18
Embodied Water, L/kg 94
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 15
16
Strength to Weight: Bending, points 16
17
Thermal Diffusivity, mm2/s 6.9
14
Thermal Shock Resistance, points 15
14

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.18
Chromium (Cr), % 10.5 to 11.7
0
Iron (Fe), % 85.1 to 89.3
98 to 100
Manganese (Mn), % 0 to 1.0
0 to 1.2
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0.18 to 0.4
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.025
Titanium (Ti), % 0.050 to 0.2
0