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EN 1.4419 Stainless Steel vs. EN 1.4959 Stainless Steel

Both EN 1.4419 stainless steel and EN 1.4959 stainless steel are iron alloys. They have 60% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4419 stainless steel and the bottom bar is EN 1.4959 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11 to 17
40
Fatigue Strength, MPa 230 to 680
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 410 to 950
430
Tensile Strength: Ultimate (UTS), MPa 660 to 1590
630
Tensile Strength: Yield (Proof), MPa 370 to 1240
190

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
510
Maximum Temperature: Mechanical, °C 790
1090
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1400
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
12
Thermal Expansion, µm/m-K 11
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
31
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.2
5.4
Embodied Energy, MJ/kg 30
76
Embodied Water, L/kg 110
200

Common Calculations

PREN (Pitting Resistance) 16
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95 to 170
190
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 3920
96
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 57
22
Strength to Weight: Bending, points 22 to 39
20
Thermal Diffusivity, mm2/s 8.1
3.2
Thermal Shock Resistance, points 23 to 55
15

Alloy Composition

Aluminum (Al), % 0
0.25 to 0.65
Carbon (C), % 0.36 to 0.42
0.050 to 0.1
Chromium (Cr), % 13 to 14.5
19 to 22
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 82 to 86
39.4 to 50.5
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0.6 to 1.0
0
Nickel (Ni), % 0
30 to 34
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0
0.25 to 0.65