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S44725 Stainless Steel vs. EN 1.4659 Stainless Steel

Both S44725 stainless steel and EN 1.4659 stainless steel are iron alloys. They have 67% 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 S44725 stainless steel and the bottom bar is EN 1.4659 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
260
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 22
49
Fatigue Strength, MPa 210
460
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
81
Shear Strength, MPa 320
640
Tensile Strength: Ultimate (UTS), MPa 500
900
Tensile Strength: Yield (Proof), MPa 310
480

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 500
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1450
1480
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 17
12
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 15
37
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 3.1
6.5
Embodied Energy, MJ/kg 44
89
Embodied Water, L/kg 170
220

Common Calculations

PREN (Pitting Resistance) 33
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
370
Resilience: Unit (Modulus of Resilience), kJ/m3 240
550
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
31
Strength to Weight: Bending, points 18
25
Thermal Diffusivity, mm2/s 4.6
3.2
Thermal Shock Resistance, points 16
19

Alloy Composition

Carbon (C), % 0 to 0.015
0 to 0.020
Chromium (Cr), % 25 to 28.5
23 to 25
Copper (Cu), % 0
1.0 to 2.0
Iron (Fe), % 67.6 to 73.5
35.7 to 45.7
Manganese (Mn), % 0 to 0.4
2.0 to 4.0
Molybdenum (Mo), % 1.5 to 2.5
5.5 to 6.5
Nickel (Ni), % 0 to 0.3
21 to 23
Niobium (Nb), % 0 to 0.26
0
Nitrogen (N), % 0 to 0.018
0.35 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.040
0 to 0.7
Sulfur (S), % 0 to 0.020
0 to 0.010
Titanium (Ti), % 0 to 0.26
0
Tungsten (W), % 0
1.5 to 2.5