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EN 1.3955 Stainless Steel vs. EN 1.4568 Stainless Steel

Both EN 1.3955 stainless steel and EN 1.4568 stainless steel are iron alloys. They have a moderately high 95% 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 1.3955 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, % 23
2.3 to 21
Fatigue Strength, MPa 150
220 to 670
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 520
830 to 1620
Tensile Strength: Yield (Proof), MPa 220
330 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 930
890
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 16
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.2
2.8
Embodied Energy, MJ/kg 45
40
Embodied Water, L/kg 140
140

Common Calculations

PREN (Pitting Resistance) 19
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
36 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 130
290 to 5710
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
30 to 58
Strength to Weight: Bending, points 18
25 to 40
Thermal Diffusivity, mm2/s 4.1
4.3
Thermal Shock Resistance, points 15
23 to 46

Alloy Composition

Aluminum (Al), % 0
0.7 to 1.5
Carbon (C), % 0 to 0.15
0 to 0.090
Chromium (Cr), % 16.5 to 18.5
16 to 18
Iron (Fe), % 65.5 to 73.5
70.9 to 76.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 10 to 12
6.5 to 7.8
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.015