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S44330 Stainless Steel vs. EN 1.4449 Stainless Steel

Both S44330 stainless steel and EN 1.4449 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S44330 stainless steel and the bottom bar is EN 1.4449 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 25
48
Fatigue Strength, MPa 160
240
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
78
Shear Strength, MPa 280
440
Tensile Strength: Ultimate (UTS), MPa 440
620
Tensile Strength: Yield (Proof), MPa 230
250

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 560
410
Maximum Temperature: Mechanical, °C 990
960
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 13
19
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.8
3.9
Embodied Energy, MJ/kg 40
54
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 22
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
240
Resilience: Unit (Modulus of Resilience), kJ/m3 140
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 16
22
Strength to Weight: Bending, points 17
20
Thermal Diffusivity, mm2/s 5.7
4.0
Thermal Shock Resistance, points 16
14

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.035
Chromium (Cr), % 20 to 23
17 to 18.2
Copper (Cu), % 0.3 to 0.8
0 to 1.0
Iron (Fe), % 72.5 to 79.7
62.4 to 69.3
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
2.3 to 2.8
Nickel (Ni), % 0
11.5 to 12.5
Niobium (Nb), % 0 to 0.8
0
Nitrogen (N), % 0 to 0.025
0 to 0.080
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0 to 0.8
0