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EN 1.4662 Stainless Steel vs. S44725 Stainless Steel

Both EN 1.4662 stainless steel and S44725 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 32 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 1.4662 stainless steel and the bottom bar is S44725 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
22
Fatigue Strength, MPa 430 to 450
210
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
81
Shear Strength, MPa 520 to 540
320
Tensile Strength: Ultimate (UTS), MPa 810 to 830
500
Tensile Strength: Yield (Proof), MPa 580 to 620
310

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 440
500
Maximum Temperature: Mechanical, °C 1090
1100
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 16
15
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.2
3.1
Embodied Energy, MJ/kg 45
44
Embodied Water, L/kg 170
170

Common Calculations

PREN (Pitting Resistance) 33
33
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
99
Resilience: Unit (Modulus of Resilience), kJ/m3 840 to 940
240
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29 to 30
18
Strength to Weight: Bending, points 25
18
Thermal Diffusivity, mm2/s 3.9
4.6
Thermal Shock Resistance, points 22
16

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.015
Chromium (Cr), % 23 to 25
25 to 28.5
Copper (Cu), % 0.1 to 0.8
0
Iron (Fe), % 62.6 to 70.2
67.6 to 73.5
Manganese (Mn), % 2.5 to 4.0
0 to 0.4
Molybdenum (Mo), % 1.0 to 2.0
1.5 to 2.5
Nickel (Ni), % 3.0 to 4.5
0 to 0.3
Niobium (Nb), % 0
0 to 0.26
Nitrogen (N), % 0.2 to 0.3
0 to 0.018
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 0.040
Sulfur (S), % 0 to 0.0050
0 to 0.020
Titanium (Ti), % 0
0 to 0.26