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EN 1.4419 Stainless Steel vs. EN 1.4434 Stainless Steel

Both EN 1.4419 stainless steel and EN 1.4434 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 32 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 1.4419 stainless steel and the bottom bar is EN 1.4434 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11 to 17
41
Fatigue Strength, MPa 230 to 680
270
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
79
Shear Strength, MPa 410 to 950
450
Tensile Strength: Ultimate (UTS), MPa 660 to 1590
660
Tensile Strength: Yield (Proof), MPa 370 to 1240
310

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 790
980
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
21
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
4.2
Embodied Energy, MJ/kg 30
57
Embodied Water, L/kg 110
160

Common Calculations

PREN (Pitting Resistance) 16
32
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95 to 170
220
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 3920
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 57
23
Strength to Weight: Bending, points 22 to 39
21
Thermal Diffusivity, mm2/s 8.1
4.0
Thermal Shock Resistance, points 23 to 55
15

Alloy Composition

Carbon (C), % 0.36 to 0.42
0 to 0.030
Chromium (Cr), % 13 to 14.5
16.5 to 19.5
Iron (Fe), % 82 to 86
59.2 to 69.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.6 to 1.0
3.0 to 4.0
Nickel (Ni), % 0
10.5 to 14
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015