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EN 1.4434 Stainless Steel vs. S44660 Stainless Steel

Both EN 1.4434 stainless steel and S44660 stainless steel are iron alloys. They have 89% 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 EN 1.4434 stainless steel and the bottom bar is S44660 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
210
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 41
20
Fatigue Strength, MPa 270
330
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
81
Shear Strength, MPa 450
410
Tensile Strength: Ultimate (UTS), MPa 660
660
Tensile Strength: Yield (Proof), MPa 310
510

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
640
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 21
21
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.2
4.3
Embodied Energy, MJ/kg 57
61
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 32
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
120
Resilience: Unit (Modulus of Resilience), kJ/m3 240
640
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
24
Strength to Weight: Bending, points 21
22
Thermal Diffusivity, mm2/s 4.0
4.5
Thermal Shock Resistance, points 15
21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 16.5 to 19.5
25 to 28
Iron (Fe), % 59.2 to 69.9
60.4 to 71
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 3.0 to 4.0
3.0 to 4.0
Nickel (Ni), % 10.5 to 14
1.0 to 3.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0.1 to 0.2
0 to 0.040
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0
0.2 to 1.0