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EN 1.4630 Stainless Steel vs. S44800 Stainless Steel

Both EN 1.4630 stainless steel and S44800 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 80% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4630 stainless steel and the bottom bar is S44800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 23
23
Fatigue Strength, MPa 170
300
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
82
Shear Strength, MPa 300
370
Tensile Strength: Ultimate (UTS), MPa 480
590
Tensile Strength: Yield (Proof), MPa 250
450

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 520
460
Maximum Temperature: Mechanical, °C 800
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 28
17
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
19
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.5
3.8
Embodied Energy, MJ/kg 36
52
Embodied Water, L/kg 120
190

Common Calculations

PREN (Pitting Resistance) 15
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
120
Resilience: Unit (Modulus of Resilience), kJ/m3 160
480
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
21
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 7.5
4.6
Thermal Shock Resistance, points 17
19

Alloy Composition

Aluminum (Al), % 0 to 1.5
0
Carbon (C), % 0 to 0.030
0 to 0.010
Chromium (Cr), % 13 to 16
28 to 30
Copper (Cu), % 0 to 0.5
0 to 0.15
Iron (Fe), % 77.1 to 86.7
62.6 to 66.5
Manganese (Mn), % 0 to 1.0
0 to 0.3
Molybdenum (Mo), % 0 to 0.5
3.5 to 4.2
Nickel (Ni), % 0 to 0.5
2.0 to 2.5
Niobium (Nb), % 0 to 0.5
0
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.050
0 to 0.025
Silicon (Si), % 0.2 to 1.5
0 to 0.2
Sulfur (S), % 0 to 0.050
0 to 0.020
Titanium (Ti), % 0.15 to 0.8
0