MakeItFrom.com
Menu (ESC)

AISI 418 Stainless Steel vs. EN 1.4374 Stainless Steel

Both AISI 418 stainless steel and EN 1.4374 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 33 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 AISI 418 stainless steel and the bottom bar is EN 1.4374 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
40
Fatigue Strength, MPa 520
340
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 680
550
Tensile Strength: Ultimate (UTS), MPa 1100
800
Tensile Strength: Yield (Proof), MPa 850
400

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 770
920
Melting Completion (Liquidus), °C 1500
1400
Melting Onset (Solidus), °C 1460
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 25
15
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 15
14
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 2.9
2.9
Embodied Energy, MJ/kg 41
42
Embodied Water, L/kg 110
150

Common Calculations

PREN (Pitting Resistance) 19
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
270
Resilience: Unit (Modulus of Resilience), kJ/m3 1830
400
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 38
29
Strength to Weight: Bending, points 29
25
Thermal Diffusivity, mm2/s 6.7
4.0
Thermal Shock Resistance, points 40
17

Alloy Composition

Carbon (C), % 0.15 to 0.2
0.050 to 0.1
Chromium (Cr), % 12 to 14
17.5 to 18.5
Copper (Cu), % 0
0 to 0.4
Iron (Fe), % 78.5 to 83.6
63.5 to 67.9
Manganese (Mn), % 0 to 0.5
9.0 to 10
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 1.8 to 2.2
5.0 to 6.0
Nitrogen (N), % 0
0.25 to 0.32
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 0.5
0.3 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 2.5 to 3.5
0