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S44635 Stainless Steel vs. EN 1.4490 Stainless Steel

Both S44635 stainless steel and EN 1.4490 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 31 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 S44635 stainless steel and the bottom bar is EN 1.4490 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 23
34
Fatigue Strength, MPa 390
210
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 710
560
Tensile Strength: Yield (Proof), MPa 580
260

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 610
420
Maximum Temperature: Mechanical, °C 1100
990
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 22
19
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.4
3.7
Embodied Energy, MJ/kg 62
52
Embodied Water, L/kg 170
150

Common Calculations

PREN (Pitting Resistance) 39
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
160
Resilience: Unit (Modulus of Resilience), kJ/m3 810
170
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
20
Strength to Weight: Bending, points 23
19
Thermal Diffusivity, mm2/s 4.4
4.1
Thermal Shock Resistance, points 23
16

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.030
Chromium (Cr), % 24.5 to 26
18 to 20
Iron (Fe), % 61.5 to 68.5
61.7 to 70.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 3.5 to 4.5
2.0 to 2.5
Nickel (Ni), % 3.5 to 4.5
9.0 to 12
Niobium (Nb), % 0.2 to 0.8
0
Nitrogen (N), % 0 to 0.035
0.12 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 0.75
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0.2 to 0.8
0