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EN 1.4525 Stainless Steel vs. Ductile Cast Iron

Both EN 1.4525 stainless steel and ductile cast iron are iron alloys. They have 75% of their average alloy composition in common. There are 28 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 EN 1.4525 stainless steel and the bottom bar is ductile cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
170 to 180
Elongation at Break, % 5.6 to 13
2.1 to 20
Poisson's Ratio 0.28
0.28 to 0.31
Shear Modulus, GPa 76
64 to 70
Tensile Strength: Ultimate (UTS), MPa 1030 to 1250
460 to 920
Tensile Strength: Yield (Proof), MPa 840 to 1120
310 to 670

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Mechanical, °C 860
290
Melting Completion (Liquidus), °C 1430
1160
Melting Onset (Solidus), °C 1390
1120
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 18
31 to 36
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.8 to 9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
1.9
Density, g/cm3 7.8
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 2.8
1.5
Embodied Energy, MJ/kg 39
21
Embodied Water, L/kg 130
43

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 68 to 130
17 to 80
Resilience: Unit (Modulus of Resilience), kJ/m3 1820 to 3230
280 to 1330
Stiffness to Weight: Axial, points 14
12 to 14
Stiffness to Weight: Bending, points 25
24 to 26
Strength to Weight: Axial, points 36 to 45
17 to 35
Strength to Weight: Bending, points 29 to 33
18 to 29
Thermal Diffusivity, mm2/s 4.7
8.9 to 10
Thermal Shock Resistance, points 34 to 41
17 to 35

Alloy Composition

Carbon (C), % 0 to 0.070
3.0 to 3.5
Chromium (Cr), % 15 to 17
0
Copper (Cu), % 2.5 to 4.0
0
Iron (Fe), % 70.4 to 79
93.7 to 95.5
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.8
0
Nickel (Ni), % 3.5 to 5.5
0
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0 to 0.080
Silicon (Si), % 0 to 0.8
1.5 to 2.8
Sulfur (S), % 0 to 0.025
0

Comparable Variants