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EN 1.4518 Stainless Steel vs. EN 1.4568 Stainless Steel

Both EN 1.4518 stainless steel and EN 1.4568 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 1.4518 stainless steel and the bottom bar is EN 1.4568 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
2.3 to 21
Fatigue Strength, MPa 160
220 to 670
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 490
830 to 1620
Tensile Strength: Yield (Proof), MPa 210
330 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 1000
890
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 20
13
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.0
2.8
Embodied Energy, MJ/kg 55
40
Embodied Water, L/kg 160
140

Common Calculations

PREN (Pitting Resistance) 30
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
36 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 100
290 to 5710
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
30 to 58
Strength to Weight: Bending, points 18
25 to 40
Thermal Diffusivity, mm2/s 4.1
4.3
Thermal Shock Resistance, points 14
23 to 46

Alloy Composition

Aluminum (Al), % 0
0.7 to 1.5
Carbon (C), % 0 to 0.030
0 to 0.090
Chromium (Cr), % 18 to 20
16 to 18
Iron (Fe), % 61.4 to 70
70.9 to 76.8
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 3.0 to 3.5
0
Nickel (Ni), % 9.0 to 12
6.5 to 7.8
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.015