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EN 1.4451 Stainless Steel vs. EN 1.4662 Stainless Steel

Both EN 1.4451 stainless steel and EN 1.4662 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 31 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 1.4451 stainless steel and the bottom bar is EN 1.4662 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 25
28
Fatigue Strength, MPa 370
430 to 450
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 80
79
Tensile Strength: Ultimate (UTS), MPa 750
810 to 830
Tensile Strength: Yield (Proof), MPa 540
580 to 620

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
440
Maximum Temperature: Mechanical, °C 1100
1090
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 17
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 20
16
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.8
3.2
Embodied Energy, MJ/kg 53
45
Embodied Water, L/kg 190
170

Common Calculations

PREN (Pitting Resistance) 39
33
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
210
Resilience: Unit (Modulus of Resilience), kJ/m3 710
840 to 940
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
29 to 30
Strength to Weight: Bending, points 23
25
Thermal Diffusivity, mm2/s 4.5
3.9
Thermal Shock Resistance, points 16
22

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 25 to 27
23 to 25
Copper (Cu), % 2.8 to 3.5
0.1 to 0.8
Iron (Fe), % 56.2 to 64.6
62.6 to 70.2
Manganese (Mn), % 0 to 1.5
2.5 to 4.0
Molybdenum (Mo), % 2.5 to 3.5
1.0 to 2.0
Nickel (Ni), % 5.0 to 7.0
3.0 to 4.5
Nitrogen (N), % 0.12 to 0.22
0.2 to 0.3
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.025
0 to 0.0050