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EN 1.4910 Stainless Steel vs. EN 1.4418 Stainless Steel

Both EN 1.4910 stainless steel and EN 1.4418 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4910 stainless steel and the bottom bar is EN 1.4418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 41
16 to 20
Fatigue Strength, MPa 250
350 to 480
Impact Strength: V-Notched Charpy, J 98
62 to 90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Shear Strength, MPa 450
530 to 620
Tensile Strength: Ultimate (UTS), MPa 650
860 to 1000
Tensile Strength: Yield (Proof), MPa 290
540 to 790

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 950
870
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 16
10

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 20
13
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.9
2.8
Embodied Energy, MJ/kg 54
39
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 27
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
130 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 210
730 to 1590
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
31 to 36
Strength to Weight: Bending, points 21
26 to 28
Thermal Diffusivity, mm2/s 4.3
4.0
Thermal Shock Resistance, points 14
31 to 36

Alloy Composition

Boron (B), % 0.0015 to 0.0050
0
Carbon (C), % 0 to 0.040
0 to 0.060
Chromium (Cr), % 16 to 18
15 to 17
Iron (Fe), % 62 to 69.9
73.2 to 80.2
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 2.0 to 3.0
0.8 to 1.5
Nickel (Ni), % 12 to 14
4.0 to 6.0
Nitrogen (N), % 0.1 to 0.18
0 to 0.020
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.015