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EN 1.4568 Stainless Steel vs. EN 1.4662 Stainless Steel

Both EN 1.4568 stainless steel and EN 1.4662 stainless steel are iron alloys. They have 88% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4568 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, % 2.3 to 21
28
Fatigue Strength, MPa 220 to 670
430 to 450
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Shear Strength, MPa 520 to 930
520 to 540
Tensile Strength: Ultimate (UTS), MPa 830 to 1620
810 to 830
Tensile Strength: Yield (Proof), MPa 330 to 1490
580 to 620

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
440
Maximum Temperature: Mechanical, °C 890
1090
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 13
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 13
16
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.8
3.2
Embodied Energy, MJ/kg 40
45
Embodied Water, L/kg 140
170

Common Calculations

PREN (Pitting Resistance) 17
33
Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 140
210
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 5710
840 to 940
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30 to 58
29 to 30
Strength to Weight: Bending, points 25 to 40
25
Thermal Diffusivity, mm2/s 4.3
3.9
Thermal Shock Resistance, points 23 to 46
22

Alloy Composition

Aluminum (Al), % 0.7 to 1.5
0
Carbon (C), % 0 to 0.090
0 to 0.030
Chromium (Cr), % 16 to 18
23 to 25
Copper (Cu), % 0
0.1 to 0.8
Iron (Fe), % 70.9 to 76.8
62.6 to 70.2
Manganese (Mn), % 0 to 1.0
2.5 to 4.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 6.5 to 7.8
3.0 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 0.7
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.0050