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EN 1.3955 Stainless Steel vs. EN 1.4865 Stainless Steel

Both EN 1.3955 stainless steel and EN 1.4865 stainless steel are iron alloys. They have 70% 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 1.4865 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
6.8
Fatigue Strength, MPa 150
120
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 520
470
Tensile Strength: Yield (Proof), MPa 220
250

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 930
1020
Melting Completion (Liquidus), °C 1430
1380
Melting Onset (Solidus), °C 1380
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 12
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 16
33
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.2
5.8
Embodied Energy, MJ/kg 45
81
Embodied Water, L/kg 140
200

Common Calculations

PREN (Pitting Resistance) 19
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
27
Resilience: Unit (Modulus of Resilience), kJ/m3 130
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
16
Strength to Weight: Bending, points 18
17
Thermal Diffusivity, mm2/s 4.1
3.1
Thermal Shock Resistance, points 15
11

Alloy Composition

Carbon (C), % 0 to 0.15
0.3 to 0.5
Chromium (Cr), % 16.5 to 18.5
18 to 21
Iron (Fe), % 65.5 to 73.5
34.4 to 44.7
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.75
0 to 0.5
Nickel (Ni), % 10 to 12
36 to 39
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
1.0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030