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EN 1.4449 Stainless Steel vs. EN 1.0625 Steel

Both EN 1.4449 stainless steel and EN 1.0625 steel are iron alloys. They have 68% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4449 stainless steel and the bottom bar is EN 1.0625 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 48
25
Fatigue Strength, MPa 240
230
Impact Strength: V-Notched Charpy, J 91
30 to 45
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 620
560
Tensile Strength: Yield (Proof), MPa 250
320

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 960
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
47
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.2
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.9
1.5
Embodied Energy, MJ/kg 54
20
Embodied Water, L/kg 150
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
120
Resilience: Unit (Modulus of Resilience), kJ/m3 160
270
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
20
Strength to Weight: Bending, points 20
19
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 14
18

Alloy Composition

Carbon (C), % 0 to 0.035
0.18 to 0.25
Chromium (Cr), % 17 to 18.2
0 to 0.3
Copper (Cu), % 0 to 1.0
0 to 0.3
Iron (Fe), % 62.4 to 69.3
96.6 to 99.02
Manganese (Mn), % 0 to 2.0
0.8 to 1.4
Molybdenum (Mo), % 2.3 to 2.8
0 to 0.12
Nickel (Ni), % 11.5 to 12.5
0 to 0.4
Nitrogen (N), % 0 to 0.080
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.020
Vanadium (V), % 0
0 to 0.030