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EN 1.3955 Stainless Steel vs. EN 1.4419 Stainless Steel

Both EN 1.3955 stainless steel and EN 1.4419 stainless steel are iron alloys. They have 85% 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 1.4419 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
11 to 17
Fatigue Strength, MPa 150
230 to 680
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 520
660 to 1590
Tensile Strength: Yield (Proof), MPa 220
370 to 1240

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 930
790
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
30
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 16
8.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.2
2.2
Embodied Energy, MJ/kg 45
30
Embodied Water, L/kg 140
110

Common Calculations

PREN (Pitting Resistance) 19
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
95 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 130
350 to 3920
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
24 to 57
Strength to Weight: Bending, points 18
22 to 39
Thermal Diffusivity, mm2/s 4.1
8.1
Thermal Shock Resistance, points 15
23 to 55

Alloy Composition

Carbon (C), % 0 to 0.15
0.36 to 0.42
Chromium (Cr), % 16.5 to 18.5
13 to 14.5
Iron (Fe), % 65.5 to 73.5
82 to 86
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.75
0.6 to 1.0
Nickel (Ni), % 10 to 12
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015